./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 260777f6a7be1f16cc330a008300c11ebdea8f1cf9d8e96a0325274fd8fd5b2a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:25,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:25,246 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:42:25,255 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:25,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:25,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:25,309 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:25,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:25,311 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:42:25,317 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:42:25,318 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:25,319 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:25,319 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:25,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:25,322 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:42:25,322 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:42:25,323 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:42:25,323 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:42:25,324 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:25,324 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:42:25,325 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:42:25,325 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:42:25,326 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:42:25,326 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:42:25,327 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:25,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:25,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:25,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:42:25,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:25,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:25,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:42:25,331 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:42:25,332 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:42:25,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:42:25,332 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:42:25,332 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:42:25,333 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:42:25,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:42:25,333 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:42:25,334 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_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 260777f6a7be1f16cc330a008300c11ebdea8f1cf9d8e96a0325274fd8fd5b2a [2023-11-19 07:42:25,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:25,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:25,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:25,708 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:25,709 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:25,710 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c [2023-11-19 07:42:28,781 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:42:29,075 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:42:29,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c [2023-11-19 07:42:29,089 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/data/3ccd5bb83/981751aa647f4ecfbb5c0f29324d3f61/FLAG054f03f6d [2023-11-19 07:42:29,106 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/data/3ccd5bb83/981751aa647f4ecfbb5c0f29324d3f61 [2023-11-19 07:42:29,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:42:29,116 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:42:29,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:29,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:42:29,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:42:29,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:29" (1/1) ... [2023-11-19 07:42:29,127 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ab85da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:29, skipping insertion in model container [2023-11-19 07:42:29,127 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:29" (1/1) ... [2023-11-19 07:42:29,159 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:42:29,329 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_5199734d-9eab-4de3-8802-a6e45d19d369/sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c[1124,1137] [2023-11-19 07:42:29,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:29,368 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:42:29,381 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_5199734d-9eab-4de3-8802-a6e45d19d369/sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c[1124,1137] [2023-11-19 07:42:29,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:29,417 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:42:29,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:29 WrapperNode [2023-11-19 07:42:29,418 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:29,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:29,419 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:42:29,420 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:42:29,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:29" (1/1) ... [2023-11-19 07:42:29,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:29" (1/1) ... [2023-11-19 07:42:29,478 INFO L138 Inliner]: procedures = 16, calls = 99, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 106 [2023-11-19 07:42:29,482 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:29,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:42:29,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:42:29,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:42:29,494 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:29" (1/1) ... [2023-11-19 07:42:29,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:29" (1/1) ... [2023-11-19 07:42:29,499 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:29" (1/1) ... [2023-11-19 07:42:29,499 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:29" (1/1) ... [2023-11-19 07:42:29,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:29" (1/1) ... [2023-11-19 07:42:29,510 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:29" (1/1) ... [2023-11-19 07:42:29,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:29" (1/1) ... [2023-11-19 07:42:29,514 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:29" (1/1) ... [2023-11-19 07:42:29,518 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:42:29,519 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:42:29,519 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:42:29,520 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:42:29,520 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:29" (1/1) ... [2023-11-19 07:42:29,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:29,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:29,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:29,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:42:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:42:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:42:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:42:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:42:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_29_to_41_0 [2023-11-19 07:42:29,619 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_29_to_41_0 [2023-11-19 07:42:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:42:29,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:42:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:42:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:42:29,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:42:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:42:29,710 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:42:29,712 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:42:30,113 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:42:30,125 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:42:30,125 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:42:30,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:30 BoogieIcfgContainer [2023-11-19 07:42:30,129 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:42:30,131 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:42:30,131 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:42:30,135 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:42:30,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:42:29" (1/3) ... [2023-11-19 07:42:30,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3590a57c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:30, skipping insertion in model container [2023-11-19 07:42:30,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:29" (2/3) ... [2023-11-19 07:42:30,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3590a57c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:30, skipping insertion in model container [2023-11-19 07:42:30,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:30" (3/3) ... [2023-11-19 07:42:30,138 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_cohencu-ll.c [2023-11-19 07:42:30,158 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:42:30,158 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:42:30,206 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:42:30,213 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;@4a87fc4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:42:30,213 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:42:30,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:42:30,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 07:42:30,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:30,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:30,226 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:30,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:30,232 INFO L85 PathProgramCache]: Analyzing trace with hash 252415097, now seen corresponding path program 1 times [2023-11-19 07:42:30,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:30,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332751374] [2023-11-19 07:42:30,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:30,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:31,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:31,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:31,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332751374] [2023-11-19 07:42:31,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332751374] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:31,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:31,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:42:31,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864117090] [2023-11-19 07:42:31,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:31,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:42:31,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:31,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:42:31,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:42:31,525 INFO L87 Difference]: Start difference. First operand has 41 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 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) Second operand has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:31,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:31,922 INFO L93 Difference]: Finished difference Result 111 states and 173 transitions. [2023-11-19 07:42:31,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:42:31,925 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 07:42:31,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:31,934 INFO L225 Difference]: With dead ends: 111 [2023-11-19 07:42:31,935 INFO L226 Difference]: Without dead ends: 68 [2023-11-19 07:42:31,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:42:31,944 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 29 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:31,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 162 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:42:31,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-19 07:42:31,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 56. [2023-11-19 07:42:32,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 35 states have internal predecessors, (36), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-19 07:42:32,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 72 transitions. [2023-11-19 07:42:32,004 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 72 transitions. Word has length 9 [2023-11-19 07:42:32,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:32,004 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 72 transitions. [2023-11-19 07:42:32,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:32,005 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 72 transitions. [2023-11-19 07:42:32,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 07:42:32,006 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:32,006 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:32,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:42:32,007 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:32,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:32,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1306217988, now seen corresponding path program 1 times [2023-11-19 07:42:32,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:32,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765510763] [2023-11-19 07:42:32,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:32,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:32,034 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:32,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [828965125] [2023-11-19 07:42:32,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:32,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:32,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:32,041 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:32,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:42:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:32,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-19 07:42:32,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:32,342 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:32,351 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:42:32,362 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:32,366 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:42:32,404 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:32,408 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:42:32,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:32,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:32,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:32,835 INFO L349 Elim1Store]: treesize reduction 175, result has 23.6 percent of original size [2023-11-19 07:42:32,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 205 treesize of output 388 [2023-11-19 07:42:33,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:33,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:33,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:33,183 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:33,192 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:33,198 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:33,602 INFO L349 Elim1Store]: treesize reduction 162, result has 14.3 percent of original size [2023-11-19 07:42:33,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 570 treesize of output 645 [2023-11-19 07:42:34,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:34,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:34,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:34,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:34,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:34,047 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:34,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:34,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:34,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:34,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:34,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:34,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:34,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:34,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:34,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:34,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2023-11-19 07:42:36,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:36,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 283 treesize of output 307 [2023-11-19 07:42:36,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 10 [2023-11-19 07:42:37,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:37,592 INFO L349 Elim1Store]: treesize reduction 20, result has 55.6 percent of original size [2023-11-19 07:42:37,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 1600 treesize of output 1573 [2023-11-19 07:42:39,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:39,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:39,189 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:39,208 INFO L349 Elim1Store]: treesize reduction 35, result has 18.6 percent of original size [2023-11-19 07:42:39,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 62 [2023-11-19 07:42:39,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:39,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:39,440 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:39,457 INFO L349 Elim1Store]: treesize reduction 35, result has 18.6 percent of original size [2023-11-19 07:42:39,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 62 [2023-11-19 07:42:39,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:39,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:39,530 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:39,552 INFO L349 Elim1Store]: treesize reduction 35, result has 18.6 percent of original size [2023-11-19 07:42:39,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 62 [2023-11-19 07:42:39,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:39,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:39,769 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:39,786 INFO L349 Elim1Store]: treesize reduction 35, result has 18.6 percent of original size [2023-11-19 07:42:39,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 62 [2023-11-19 07:42:42,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:42,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765510763] [2023-11-19 07:42:42,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:42,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828965125] [2023-11-19 07:42:42,152 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-11-19 07:42:42,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 07:42:42,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:42,365 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no need to replace index at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:331) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructDerEnabler(DerPreprocessor.java:186) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:543) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:522) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:515) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:326) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:298) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-19 07:42:42,368 INFO L158 Benchmark]: Toolchain (without parser) took 13252.56ms. Allocated memory was 153.1MB in the beginning and 268.4MB in the end (delta: 115.3MB). Free memory was 123.0MB in the beginning and 87.2MB in the end (delta: 35.8MB). Peak memory consumption was 159.7MB. Max. memory is 16.1GB. [2023-11-19 07:42:42,369 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 121.6MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:42:42,369 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.98ms. Allocated memory is still 153.1MB. Free memory was 123.0MB in the beginning and 111.1MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:42:42,369 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.90ms. Allocated memory is still 153.1MB. Free memory was 111.1MB in the beginning and 109.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:42:42,370 INFO L158 Benchmark]: Boogie Preprocessor took 35.57ms. Allocated memory is still 153.1MB. Free memory was 109.5MB in the beginning and 107.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:42:42,370 INFO L158 Benchmark]: RCFGBuilder took 610.20ms. Allocated memory is still 153.1MB. Free memory was 107.6MB in the beginning and 112.5MB in the end (delta: -5.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:42:42,371 INFO L158 Benchmark]: TraceAbstraction took 12236.32ms. Allocated memory was 153.1MB in the beginning and 268.4MB in the end (delta: 115.3MB). Free memory was 111.8MB in the beginning and 87.2MB in the end (delta: 24.6MB). Peak memory consumption was 151.4MB. Max. memory is 16.1GB. [2023-11-19 07:42:42,374 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 121.6MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.98ms. Allocated memory is still 153.1MB. Free memory was 123.0MB in the beginning and 111.1MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.90ms. Allocated memory is still 153.1MB. Free memory was 111.1MB in the beginning and 109.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.57ms. Allocated memory is still 153.1MB. Free memory was 109.5MB in the beginning and 107.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 610.20ms. Allocated memory is still 153.1MB. Free memory was 107.6MB in the beginning and 112.5MB in the end (delta: -5.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 12236.32ms. Allocated memory was 153.1MB in the beginning and 268.4MB in the end (delta: 115.3MB). Free memory was 111.8MB in the beginning and 87.2MB in the end (delta: 24.6MB). Peak memory consumption was 151.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no need to replace index de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no need to replace index: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:331) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-19 07:42:42,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 260777f6a7be1f16cc330a008300c11ebdea8f1cf9d8e96a0325274fd8fd5b2a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:45,031 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:45,164 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:42:45,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:45,174 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:45,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:45,219 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:45,219 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:45,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:42:45,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:42:45,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:45,227 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:45,227 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:45,229 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:45,229 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:42:45,230 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:42:45,230 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:42:45,231 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:45,231 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:42:45,232 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:42:45,233 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:42:45,233 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:42:45,233 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:42:45,234 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:42:45,234 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:42:45,235 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:42:45,235 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:45,235 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:45,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:45,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:42:45,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:45,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:45,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:42:45,239 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:42:45,239 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:42:45,239 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:42:45,239 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:42:45,239 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:42:45,242 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:42:45,243 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:42:45,243 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:42:45,245 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:42:45,245 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_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 260777f6a7be1f16cc330a008300c11ebdea8f1cf9d8e96a0325274fd8fd5b2a [2023-11-19 07:42:45,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:45,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:45,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:45,638 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:45,639 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:45,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c [2023-11-19 07:42:49,001 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:42:49,311 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:42:49,312 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c [2023-11-19 07:42:49,321 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/data/c6b0d15b3/fcf50a59929d4d189a7054a9bdfc00c2/FLAG01baa4330 [2023-11-19 07:42:49,333 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/data/c6b0d15b3/fcf50a59929d4d189a7054a9bdfc00c2 [2023-11-19 07:42:49,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:42:49,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:42:49,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:49,338 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:42:49,346 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:42:49,347 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e69864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49, skipping insertion in model container [2023-11-19 07:42:49,349 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,380 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:42:49,533 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_5199734d-9eab-4de3-8802-a6e45d19d369/sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c[1124,1137] [2023-11-19 07:42:49,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:49,579 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:42:49,591 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_5199734d-9eab-4de3-8802-a6e45d19d369/sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c[1124,1137] [2023-11-19 07:42:49,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:49,630 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:42:49,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49 WrapperNode [2023-11-19 07:42:49,631 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:49,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:49,633 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:42:49,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:42:49,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,654 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,681 INFO L138 Inliner]: procedures = 20, calls = 99, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 106 [2023-11-19 07:42:49,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:49,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:42:49,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:42:49,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:42:49,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,707 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,710 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,757 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,760 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:42:49,761 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:42:49,761 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:42:49,762 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:42:49,763 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:49,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:49,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:49,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:42:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:42:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:42:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:42:49,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-19 07:42:49,850 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_29_to_41_0 [2023-11-19 07:42:49,850 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_29_to_41_0 [2023-11-19 07:42:49,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-19 07:42:49,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:42:49,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:42:49,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-19 07:42:49,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:42:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:42:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-19 07:42:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:42:49,990 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:42:49,993 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:42:50,573 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:42:50,583 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:42:50,584 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:42:50,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:50 BoogieIcfgContainer [2023-11-19 07:42:50,588 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:42:50,590 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:42:50,591 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:42:50,594 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:42:50,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:42:49" (1/3) ... [2023-11-19 07:42:50,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d2f669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:50, skipping insertion in model container [2023-11-19 07:42:50,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (2/3) ... [2023-11-19 07:42:50,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d2f669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:50, skipping insertion in model container [2023-11-19 07:42:50,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:50" (3/3) ... [2023-11-19 07:42:50,597 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_cohencu-ll.c [2023-11-19 07:42:50,618 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:42:50,618 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:42:50,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:42:50,672 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;@3e9d6ca3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:42:50,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:42:50,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:42:50,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 07:42:50,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:50,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:50,686 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:50,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:50,693 INFO L85 PathProgramCache]: Analyzing trace with hash 252415097, now seen corresponding path program 1 times [2023-11-19 07:42:50,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:42:50,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1477669602] [2023-11-19 07:42:50,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:50,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:42:50,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:42:50,717 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:42:50,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 07:42:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:51,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-19 07:42:51,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:51,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-19 07:42:51,362 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:51,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:51,365 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:51,461 INFO L349 Elim1Store]: treesize reduction 72, result has 27.3 percent of original size [2023-11-19 07:42:51,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 59 [2023-11-19 07:42:51,598 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:51,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:51,601 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:51,636 INFO L349 Elim1Store]: treesize reduction 98, result has 1.0 percent of original size [2023-11-19 07:42:51,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 33 [2023-11-19 07:42:51,656 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:51,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:51,659 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:51,815 INFO L349 Elim1Store]: treesize reduction 145, result has 16.2 percent of original size [2023-11-19 07:42:51,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 44 [2023-11-19 07:42:51,874 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:51,903 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:51,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:51,906 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:51,941 INFO L349 Elim1Store]: treesize reduction 98, result has 1.0 percent of original size [2023-11-19 07:42:51,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 33 [2023-11-19 07:42:51,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:52,019 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:52,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:52,024 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:52,122 INFO L349 Elim1Store]: treesize reduction 313, result has 0.3 percent of original size [2023-11-19 07:42:52,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 33 [2023-11-19 07:42:52,153 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:52,154 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:52,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-19 07:42:52,186 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:52,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:52,189 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:52,220 INFO L349 Elim1Store]: treesize reduction 98, result has 1.0 percent of original size [2023-11-19 07:42:52,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 33 [2023-11-19 07:42:52,254 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:52,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:52,257 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:52,289 INFO L349 Elim1Store]: treesize reduction 98, result has 1.0 percent of original size [2023-11-19 07:42:52,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 33 [2023-11-19 07:42:52,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:52,340 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:52,399 INFO L349 Elim1Store]: treesize reduction 422, result has 0.2 percent of original size [2023-11-19 07:42:52,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 129 treesize of output 86 [2023-11-19 07:42:52,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:52,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 49 [2023-11-19 07:42:52,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:52,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:52,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:52,567 INFO L349 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2023-11-19 07:42:52,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 56 [2023-11-19 07:42:52,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:52,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:52,721 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:52,771 INFO L349 Elim1Store]: treesize reduction 328, result has 0.3 percent of original size [2023-11-19 07:42:52,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 207 treesize of output 109 [2023-11-19 07:42:52,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:52,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2023-11-19 07:42:52,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:52,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:52,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 40 [2023-11-19 07:42:53,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,038 INFO L349 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2023-11-19 07:42:53,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 25 [2023-11-19 07:42:53,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 40 [2023-11-19 07:42:53,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,127 INFO L349 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2023-11-19 07:42:53,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 25 [2023-11-19 07:42:53,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 40 [2023-11-19 07:42:53,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,249 INFO L349 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2023-11-19 07:42:53,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 25 [2023-11-19 07:42:53,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 40 [2023-11-19 07:42:53,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,349 INFO L349 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2023-11-19 07:42:53,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 25 [2023-11-19 07:42:53,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-19 07:42:53,394 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,397 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,424 INFO L349 Elim1Store]: treesize reduction 98, result has 1.0 percent of original size [2023-11-19 07:42:53,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 33 [2023-11-19 07:42:53,450 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,455 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,482 INFO L349 Elim1Store]: treesize reduction 98, result has 1.0 percent of original size [2023-11-19 07:42:53,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 33 [2023-11-19 07:42:53,500 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,503 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,615 INFO L349 Elim1Store]: treesize reduction 145, result has 16.2 percent of original size [2023-11-19 07:42:53,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 44 [2023-11-19 07:42:53,658 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,682 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,685 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,710 INFO L349 Elim1Store]: treesize reduction 98, result has 1.0 percent of original size [2023-11-19 07:42:53,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 33 [2023-11-19 07:42:53,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,767 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,770 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,846 INFO L349 Elim1Store]: treesize reduction 313, result has 0.3 percent of original size [2023-11-19 07:42:53,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 33 [2023-11-19 07:42:53,877 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,878 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-19 07:42:53,903 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,906 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,931 INFO L349 Elim1Store]: treesize reduction 98, result has 1.0 percent of original size [2023-11-19 07:42:53,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 33 [2023-11-19 07:42:53,956 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:53,959 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:53,986 INFO L349 Elim1Store]: treesize reduction 98, result has 1.0 percent of original size [2023-11-19 07:42:53,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 33 [2023-11-19 07:42:54,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,024 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:54,055 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-19 07:42:54,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 123 treesize of output 90 [2023-11-19 07:42:54,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 49 [2023-11-19 07:42:54,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,249 INFO L349 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2023-11-19 07:42:54,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 56 [2023-11-19 07:42:54,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,325 INFO L349 Elim1Store]: treesize reduction 45, result has 2.2 percent of original size [2023-11-19 07:42:54,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 40 [2023-11-19 07:42:54,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2023-11-19 07:42:54,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,540 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:42:54,600 INFO L349 Elim1Store]: treesize reduction 328, result has 0.3 percent of original size [2023-11-19 07:42:54,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 212 treesize of output 114 [2023-11-19 07:42:54,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 79 treesize of output 73 [2023-11-19 07:42:54,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:54,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 893 treesize of output 927 [2023-11-19 07:42:55,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:55,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2023-11-19 07:42:55,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:42:55,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2023-11-19 07:42:55,518 INFO L349 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-11-19 07:42:55,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 31 [2023-11-19 07:42:55,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:55,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:55,614 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:42:55,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1477669602] [2023-11-19 07:42:55,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1477669602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:55,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:55,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:42:55,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380414421] [2023-11-19 07:42:55,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:55,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:42:55,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:42:55,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:42:55,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:42:55,665 INFO L87 Difference]: Start difference. First operand has 41 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 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) Second operand has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:01,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:01,908 INFO L93 Difference]: Finished difference Result 111 states and 173 transitions. [2023-11-19 07:43:01,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:43:01,916 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 07:43:01,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:01,931 INFO L225 Difference]: With dead ends: 111 [2023-11-19 07:43:01,932 INFO L226 Difference]: Without dead ends: 68 [2023-11-19 07:43:01,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:43:01,943 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 28 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:01,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 163 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-11-19 07:43:01,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-19 07:43:02,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 56. [2023-11-19 07:43:02,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 35 states have internal predecessors, (36), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-19 07:43:02,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 72 transitions. [2023-11-19 07:43:02,023 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 72 transitions. Word has length 9 [2023-11-19 07:43:02,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:02,023 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 72 transitions. [2023-11-19 07:43:02,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:02,024 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 72 transitions. [2023-11-19 07:43:02,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 07:43:02,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:02,026 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:02,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:02,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:02,230 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:43:02,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:02,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1306217988, now seen corresponding path program 1 times [2023-11-19 07:43:02,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:02,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752027321] [2023-11-19 07:43:02,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:02,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:02,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:02,234 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:43:02,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5199734d-9eab-4de3-8802-a6e45d19d369/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 07:43:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:02,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-19 07:43:02,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:02,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:43:02,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:43:02,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:43:02,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:43:02,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:43:02,701 INFO L190 IndexEqualityManager]: detected not equals via solver