./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-72.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-72.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd1ba7d185f4c09a6b14ae8d8b991d063f5f8f309435a694ac46f2c9fbfc2733 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:11:40,560 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:11:40,632 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:11:40,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:11:40,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:11:40,665 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:11:40,666 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:11:40,666 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:11:40,667 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:11:40,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:11:40,669 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:11:40,670 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:11:40,670 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:11:40,671 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:11:40,672 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:11:40,673 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:11:40,673 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:11:40,674 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:11:40,675 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:11:40,675 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:11:40,676 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:11:40,690 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:11:40,691 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:11:40,691 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:11:40,692 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:11:40,692 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:11:40,693 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:11:40,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:11:40,694 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:11:40,695 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:11:40,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:11:40,697 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:11:40,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:11:40,698 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:11:40,698 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:11:40,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:11:40,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:11:40,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:11:40,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:11:40,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:11:40,700 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:11:40,701 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:11:40,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:11:40,701 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:11:40,702 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:11:40,702 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:11:40,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:11:40,703 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd1ba7d185f4c09a6b14ae8d8b991d063f5f8f309435a694ac46f2c9fbfc2733 [2023-11-23 21:11:41,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:11:41,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:11:41,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:11:41,082 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:11:41,084 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:11:41,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-72.i [2023-11-23 21:11:44,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:11:44,460 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:11:44,461 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-72.i [2023-11-23 21:11:44,479 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/data/39ac12c2a/46d9ef565bb744aa9511a02a94598015/FLAG1766c669f [2023-11-23 21:11:44,500 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/data/39ac12c2a/46d9ef565bb744aa9511a02a94598015 [2023-11-23 21:11:44,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:11:44,511 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:11:44,515 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:11:44,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:11:44,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:11:44,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:11:44" (1/1) ... [2023-11-23 21:11:44,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@397743b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:44, skipping insertion in model container [2023-11-23 21:11:44,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:11:44" (1/1) ... [2023-11-23 21:11:44,634 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:11:44,913 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_a98967e2-7beb-49cf-8f2b-86ef37d8a659/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-72.i[913,926] [2023-11-23 21:11:44,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:11:45,001 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:11:45,017 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_a98967e2-7beb-49cf-8f2b-86ef37d8a659/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-72.i[913,926] [2023-11-23 21:11:45,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:11:45,075 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:11:45,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:45 WrapperNode [2023-11-23 21:11:45,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:11:45,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:11:45,078 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:11:45,078 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:11:45,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:45" (1/1) ... [2023-11-23 21:11:45,098 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:45" (1/1) ... [2023-11-23 21:11:45,148 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 136 [2023-11-23 21:11:45,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:11:45,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:11:45,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:11:45,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:11:45,172 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:45" (1/1) ... [2023-11-23 21:11:45,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:45" (1/1) ... [2023-11-23 21:11:45,183 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:45" (1/1) ... [2023-11-23 21:11:45,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:45" (1/1) ... [2023-11-23 21:11:45,194 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:45" (1/1) ... [2023-11-23 21:11:45,199 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:45" (1/1) ... [2023-11-23 21:11:45,206 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:45" (1/1) ... [2023-11-23 21:11:45,209 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:45" (1/1) ... [2023-11-23 21:11:45,213 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:11:45,214 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:11:45,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:11:45,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:11:45,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:45" (1/1) ... [2023-11-23 21:11:45,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:11:45,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:11:45,267 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:11:45,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:11:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:11:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:11:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:11:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:11:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:11:45,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:11:45,477 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:11:45,479 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:11:45,887 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:11:46,162 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:11:46,162 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:11:46,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:11:46 BoogieIcfgContainer [2023-11-23 21:11:46,164 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:11:46,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:11:46,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:11:46,172 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:11:46,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:11:44" (1/3) ... [2023-11-23 21:11:46,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b959cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:11:46, skipping insertion in model container [2023-11-23 21:11:46,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:45" (2/3) ... [2023-11-23 21:11:46,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b959cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:11:46, skipping insertion in model container [2023-11-23 21:11:46,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:11:46" (3/3) ... [2023-11-23 21:11:46,178 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-72.i [2023-11-23 21:11:46,201 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:11:46,202 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:11:46,275 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:11:46,284 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=FINITE_AUTOMATA, 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;@12841f09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:11:46,286 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:11:46,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 21:11:46,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 21:11:46,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:46,304 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:11:46,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:11:46,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:46,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1188540791, now seen corresponding path program 1 times [2023-11-23 21:11:46,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:11:46,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421258347] [2023-11-23 21:11:46,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:46,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:11:46,534 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:11:46,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1755769338] [2023-11-23 21:11:46,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:46,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:11:46,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:11:46,542 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:11:46,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:11:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:11:46,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:11:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:11:46,896 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:11:46,899 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:11:46,900 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:11:46,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:11:47,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:11:47,125 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:11:47,130 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:11:47,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:11:47 BoogieIcfgContainer [2023-11-23 21:11:47,243 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:11:47,245 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:11:47,245 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:11:47,246 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:11:47,246 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:11:46" (3/4) ... [2023-11-23 21:11:47,249 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:11:47,250 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:11:47,251 INFO L158 Benchmark]: Toolchain (without parser) took 2740.43ms. Allocated memory is still 205.5MB. Free memory was 166.2MB in the beginning and 86.1MB in the end (delta: 80.1MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. [2023-11-23 21:11:47,252 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:11:47,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 561.11ms. Allocated memory is still 205.5MB. Free memory was 165.3MB in the beginning and 166.6MB in the end (delta: -1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:11:47,254 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.47ms. Allocated memory is still 205.5MB. Free memory was 165.7MB in the beginning and 163.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:11:47,261 INFO L158 Benchmark]: Boogie Preprocessor took 64.02ms. Allocated memory is still 205.5MB. Free memory was 163.6MB in the beginning and 161.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:11:47,262 INFO L158 Benchmark]: RCFGBuilder took 949.85ms. Allocated memory is still 205.5MB. Free memory was 161.6MB in the beginning and 123.8MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-23 21:11:47,263 INFO L158 Benchmark]: TraceAbstraction took 1076.60ms. Allocated memory is still 205.5MB. Free memory was 122.9MB in the beginning and 87.0MB in the end (delta: 36.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-23 21:11:47,264 INFO L158 Benchmark]: Witness Printer took 5.37ms. Allocated memory is still 205.5MB. Free memory was 87.0MB in the beginning and 86.1MB in the end (delta: 898.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:11:47,267 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 561.11ms. Allocated memory is still 205.5MB. Free memory was 165.3MB in the beginning and 166.6MB in the end (delta: -1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.47ms. Allocated memory is still 205.5MB. Free memory was 165.7MB in the beginning and 163.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.02ms. Allocated memory is still 205.5MB. Free memory was 163.6MB in the beginning and 161.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 949.85ms. Allocated memory is still 205.5MB. Free memory was 161.6MB in the beginning and 123.8MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1076.60ms. Allocated memory is still 205.5MB. Free memory was 122.9MB in the beginning and 87.0MB in the end (delta: 36.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 5.37ms. Allocated memory is still 205.5MB. Free memory was 87.0MB in the beginning and 86.1MB in the end (delta: 898.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 95, overapproximation of someBinaryDOUBLEComparisonOperation at line 52. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 16; [L23] signed char var_1_10 = 2; [L24] signed char var_1_11 = 1; [L25] float var_1_14 = 64.3; [L26] signed char var_1_16 = 32; [L27] unsigned char var_1_17 = 1; [L28] unsigned char var_1_18 = 0; [L29] unsigned char var_1_19 = 0; [L30] double var_1_20 = 9.25; [L31] double var_1_21 = 255.05; [L32] double var_1_22 = 25.5; [L33] unsigned char var_1_23 = 2; [L34] unsigned char var_1_25 = 1; [L35] unsigned short int var_1_26 = 5; [L36] unsigned char var_1_27 = 128; [L37] unsigned char var_1_28 = 1; [L38] signed long int var_1_29 = 128; [L39] unsigned long int var_1_31 = 1; [L40] unsigned char last_1_var_1_17 = 1; [L41] double last_1_var_1_20 = 9.25; [L42] unsigned char last_1_var_1_23 = 2; [L43] unsigned short int last_1_var_1_26 = 5; [L44] signed long int last_1_var_1_29 = 128; [L131] isInitial = 1 [L132] FCALL initially() [L133] COND TRUE 1 [L134] CALL updateLastVariables() [L120] last_1_var_1_17 = var_1_17 [L121] last_1_var_1_20 = var_1_20 [L122] last_1_var_1_23 = var_1_23 [L123] last_1_var_1_26 = var_1_26 [L124] last_1_var_1_29 = var_1_29 [L134] RET updateLastVariables() [L135] CALL updateVariables() [L91] var_1_11 = __VERIFIER_nondet_char() [L92] CALL assume_abort_if_not(var_1_11 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_14=643/10, var_1_16=32, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_11 >= -63) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_14=643/10, var_1_16=32, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L93] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_14=643/10, var_1_16=32, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_14=643/10, var_1_16=32, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L94] var_1_14 = __VERIFIER_nondet_float() [L95] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=32, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=32, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L96] var_1_16 = __VERIFIER_nondet_char() [L97] CALL assume_abort_if_not(var_1_16 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_16 >= -63) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L98] CALL assume_abort_if_not(var_1_16 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_16 <= 63) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L99] var_1_18 = __VERIFIER_nondet_uchar() [L100] CALL assume_abort_if_not(var_1_18 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_18 >= 1) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L101] CALL assume_abort_if_not(var_1_18 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_18 <= 1) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L102] var_1_19 = __VERIFIER_nondet_uchar() [L103] CALL assume_abort_if_not(var_1_19 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_19 >= 1) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L104] CALL assume_abort_if_not(var_1_19 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_19 <= 1) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L105] var_1_21 = __VERIFIER_nondet_double() [L106] CALL assume_abort_if_not((var_1_21 >= -922337.2036854765600e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not((var_1_21 >= -922337.2036854765600e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L107] var_1_22 = __VERIFIER_nondet_double() [L108] CALL assume_abort_if_not((var_1_22 >= -922337.2036854765600e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 9223372.036854765600e+12F && var_1_22 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not((var_1_22 >= -922337.2036854765600e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 9223372.036854765600e+12F && var_1_22 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L109] var_1_25 = __VERIFIER_nondet_uchar() [L110] CALL assume_abort_if_not(var_1_25 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_25 >= 0) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L111] CALL assume_abort_if_not(var_1_25 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_25 <= 254) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L112] var_1_27 = __VERIFIER_nondet_uchar() [L113] CALL assume_abort_if_not(var_1_27 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=255, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_27 >= 127) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=255, var_1_28=1, var_1_29=128, var_1_31=1] [L114] CALL assume_abort_if_not(var_1_27 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=255, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_27 <= 255) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=255, var_1_28=1, var_1_29=128, var_1_31=1] [L115] var_1_28 = __VERIFIER_nondet_uchar() [L116] CALL assume_abort_if_not(var_1_28 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=255, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(var_1_28 >= 0) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=255, var_1_29=128, var_1_31=1] [L117] CALL assume_abort_if_not(var_1_28 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=255, var_1_28=15, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(var_1_28 <= 127) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=255, var_1_28=15, var_1_29=128, var_1_31=1] [L135] RET updateVariables() [L136] CALL step() [L48] COND FALSE !((last_1_var_1_29 * last_1_var_1_23) <= last_1_var_1_29) [L51] COND TRUE last_1_var_1_17 || last_1_var_1_17 [L52] COND FALSE !((((((last_1_var_1_20) < 0 ) ? -(last_1_var_1_20) : (last_1_var_1_20))) - var_1_14) == (last_1_var_1_20 + last_1_var_1_20)) [L55] var_1_10 = var_1_11 [L61] COND TRUE (last_1_var_1_29 + last_1_var_1_29) > last_1_var_1_26 [L62] var_1_23 = var_1_25 [L64] var_1_17 = (var_1_18 && var_1_19) [L65] COND FALSE !(! var_1_18) [L68] COND TRUE 256 >= var_1_10 [L69] COND FALSE !(var_1_17 && (var_1_25 >= (var_1_27 - var_1_28))) [L72] var_1_26 = var_1_28 [L77] signed long int stepLocal_0 = var_1_23 * var_1_26; [L78] COND FALSE !(((((var_1_20) < (63.5)) ? (var_1_20) : (63.5))) > (2.4 * var_1_20)) [L85] var_1_1 = -50 [L87] var_1_31 = var_1_26 [L88] var_1_29 = var_1_1 [L136] RET step() [L137] CALL, EXPR property() [L127-L128] return ((((((((((((var_1_20) < (63.5)) ? (var_1_20) : (63.5))) > (2.4 * var_1_20)) ? (((var_1_23 * var_1_26) <= (~ var_1_26)) ? (var_1_1 == ((signed short int) (((((var_1_10) < (var_1_10)) ? (var_1_10) : (var_1_10))) + var_1_23))) : (var_1_1 == ((signed short int) var_1_10))) : (var_1_1 == ((signed short int) -50))) && (((last_1_var_1_29 * last_1_var_1_23) <= last_1_var_1_29) ? (var_1_10 == ((signed char) (var_1_11 + 10))) : ((last_1_var_1_17 || last_1_var_1_17) ? (((((((last_1_var_1_20) < 0 ) ? -(last_1_var_1_20) : (last_1_var_1_20))) - var_1_14) == (last_1_var_1_20 + last_1_var_1_20)) ? (var_1_10 == ((signed char) (var_1_11 + var_1_16))) : (var_1_10 == ((signed char) var_1_11))) : (var_1_10 == ((signed char) var_1_16))))) && (var_1_17 == ((unsigned char) (var_1_18 && var_1_19)))) && ((! var_1_18) ? (var_1_20 == ((double) ((((var_1_21) > (var_1_22)) ? (var_1_21) : (var_1_22))))) : 1)) && (((last_1_var_1_29 + last_1_var_1_29) > last_1_var_1_26) ? (var_1_23 == ((unsigned char) var_1_25)) : 1)) && ((256 >= var_1_10) ? ((var_1_17 && (var_1_25 >= (var_1_27 - var_1_28))) ? (var_1_26 == ((unsigned short int) 16)) : (var_1_26 == ((unsigned short int) var_1_28))) : (var_1_26 == ((unsigned short int) var_1_25)))) && (var_1_29 == ((signed long int) var_1_1))) && (var_1_31 == ((unsigned long int) var_1_26)) ; [L137] RET, EXPR property() [L137] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=-50, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=-50, var_1_20=37/4, var_1_21=0, var_1_22=0, var_1_23=0, var_1_25=0, var_1_26=15, var_1_27=255, var_1_28=15, var_1_29=-50, var_1_31=15] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=-50, var_1_11=-50, var_1_16=-51, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=-50, var_1_20=37/4, var_1_21=0, var_1_22=0, var_1_23=0, var_1_25=0, var_1_26=15, var_1_27=255, var_1_28=15, var_1_29=-50, var_1_31=15] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:11:47,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-72.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd1ba7d185f4c09a6b14ae8d8b991d063f5f8f309435a694ac46f2c9fbfc2733 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:11:50,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:11:50,502 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:11:50,512 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:11:50,513 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:11:50,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:11:50,584 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:11:50,584 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:11:50,586 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:11:50,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:11:50,591 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:11:50,592 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:11:50,592 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:11:50,594 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:11:50,594 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:11:50,595 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:11:50,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:11:50,597 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:11:50,597 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:11:50,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:11:50,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:11:50,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:11:50,600 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:11:50,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:11:50,601 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:11:50,601 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:11:50,602 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:11:50,602 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:11:50,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:11:50,603 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:11:50,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:11:50,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:11:50,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:11:50,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:11:50,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:11:50,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:11:50,607 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:11:50,607 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:11:50,608 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:11:50,609 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:11:50,609 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:11:50,609 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:11:50,610 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:11:50,610 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:11:50,611 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd1ba7d185f4c09a6b14ae8d8b991d063f5f8f309435a694ac46f2c9fbfc2733 [2023-11-23 21:11:51,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:11:51,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:11:51,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:11:51,067 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:11:51,067 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:11:51,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-72.i [2023-11-23 21:11:54,402 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:11:54,773 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:11:54,774 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-72.i [2023-11-23 21:11:54,794 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/data/8a7586985/e29031c53b754d8dbe16e19d971c3f18/FLAG5f14775c8 [2023-11-23 21:11:54,814 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/data/8a7586985/e29031c53b754d8dbe16e19d971c3f18 [2023-11-23 21:11:54,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:11:54,819 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:11:54,821 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:11:54,822 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:11:54,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:11:54,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:11:54" (1/1) ... [2023-11-23 21:11:54,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ba74c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:54, skipping insertion in model container [2023-11-23 21:11:54,839 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:11:54" (1/1) ... [2023-11-23 21:11:54,875 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:11:55,107 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_a98967e2-7beb-49cf-8f2b-86ef37d8a659/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-72.i[913,926] [2023-11-23 21:11:55,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:11:55,227 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:11:55,243 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_a98967e2-7beb-49cf-8f2b-86ef37d8a659/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-72.i[913,926] [2023-11-23 21:11:55,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:11:55,298 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:11:55,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:55 WrapperNode [2023-11-23 21:11:55,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:11:55,301 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:11:55,301 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:11:55,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:11:55,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:55" (1/1) ... [2023-11-23 21:11:55,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:55" (1/1) ... [2023-11-23 21:11:55,400 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 134 [2023-11-23 21:11:55,401 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:11:55,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:11:55,404 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:11:55,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:11:55,417 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:55" (1/1) ... [2023-11-23 21:11:55,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:55" (1/1) ... [2023-11-23 21:11:55,432 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:55" (1/1) ... [2023-11-23 21:11:55,435 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:55" (1/1) ... [2023-11-23 21:11:55,465 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:55" (1/1) ... [2023-11-23 21:11:55,470 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:55" (1/1) ... [2023-11-23 21:11:55,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:55" (1/1) ... [2023-11-23 21:11:55,477 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:55" (1/1) ... [2023-11-23 21:11:55,482 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:11:55,484 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:11:55,484 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:11:55,484 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:11:55,485 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:55" (1/1) ... [2023-11-23 21:11:55,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:11:55,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:11:55,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:11:55,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:11:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:11:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:11:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:11:55,590 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:11:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:11:55,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:11:55,767 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:11:55,772 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:12:02,160 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:12:02,238 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:12:02,239 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:12:02,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:02 BoogieIcfgContainer [2023-11-23 21:12:02,240 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:12:02,243 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:12:02,244 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:12:02,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:12:02,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:11:54" (1/3) ... [2023-11-23 21:12:02,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615a265f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:02, skipping insertion in model container [2023-11-23 21:12:02,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:55" (2/3) ... [2023-11-23 21:12:02,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615a265f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:02, skipping insertion in model container [2023-11-23 21:12:02,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:02" (3/3) ... [2023-11-23 21:12:02,252 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-72.i [2023-11-23 21:12:02,276 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:12:02,277 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:12:02,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:12:02,354 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=FINITE_AUTOMATA, 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;@1679a06a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:12:02,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:12:02,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 21:12:02,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-23 21:12:02,383 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:02,384 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:02,385 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:02,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:02,395 INFO L85 PathProgramCache]: Analyzing trace with hash -2061077504, now seen corresponding path program 1 times [2023-11-23 21:12:02,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:12:02,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343477260] [2023-11-23 21:12:02,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:02,419 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 [2023-11-23 21:12:02,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:12:02,424 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:12:02,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:12:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:03,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:12:03,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:03,259 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2023-11-23 21:12:03,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:12:03,265 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:12:03,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343477260] [2023-11-23 21:12:03,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343477260] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:03,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:03,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:12:03,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671875710] [2023-11-23 21:12:03,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:03,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:12:03,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:12:03,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:12:03,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:12:03,342 INFO L87 Difference]: Start difference. First operand has 51 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:12:05,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:05,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:05,596 INFO L93 Difference]: Finished difference Result 99 states and 173 transitions. [2023-11-23 21:12:05,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:12:05,641 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2023-11-23 21:12:05,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:05,652 INFO L225 Difference]: With dead ends: 99 [2023-11-23 21:12:05,653 INFO L226 Difference]: Without dead ends: 49 [2023-11-23 21:12:05,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:12:05,663 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:05,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 21:12:05,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-23 21:12:05,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-23 21:12:05,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.3) internal successors, (39), 30 states have internal predecessors, (39), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 21:12:05,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 73 transitions. [2023-11-23 21:12:05,735 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 73 transitions. Word has length 107 [2023-11-23 21:12:05,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:05,736 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 73 transitions. [2023-11-23 21:12:05,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:12:05,737 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 73 transitions. [2023-11-23 21:12:05,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-23 21:12:05,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:05,742 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:05,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:12:05,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:12:05,955 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:05,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:05,956 INFO L85 PathProgramCache]: Analyzing trace with hash -2052122393, now seen corresponding path program 1 times [2023-11-23 21:12:05,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:12:05,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774425389] [2023-11-23 21:12:05,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:05,958 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 [2023-11-23 21:12:05,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:12:05,997 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:12:06,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:12:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:06,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:12:06,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:09,200 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 21:12:09,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:12:09,201 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:12:09,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774425389] [2023-11-23 21:12:09,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774425389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:09,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:09,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:12:09,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691103024] [2023-11-23 21:12:09,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:09,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:12:09,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:12:09,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:12:09,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:12:09,207 INFO L87 Difference]: Start difference. First operand 49 states and 73 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:12:11,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:13,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:15,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:17,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:20,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:22,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:24,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:24,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:24,213 INFO L93 Difference]: Finished difference Result 154 states and 230 transitions. [2023-11-23 21:12:24,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:12:24,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2023-11-23 21:12:24,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:24,258 INFO L225 Difference]: With dead ends: 154 [2023-11-23 21:12:24,258 INFO L226 Difference]: Without dead ends: 106 [2023-11-23 21:12:24,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:12:24,261 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 66 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 35 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:24,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 198 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 14.9s Time] [2023-11-23 21:12:24,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-23 21:12:24,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 82. [2023-11-23 21:12:24,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 45 states have (on average 1.2) internal successors, (54), 45 states have internal predecessors, (54), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-23 21:12:24,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 122 transitions. [2023-11-23 21:12:24,299 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 122 transitions. Word has length 108 [2023-11-23 21:12:24,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:24,300 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 122 transitions. [2023-11-23 21:12:24,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:12:24,301 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 122 transitions. [2023-11-23 21:12:24,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-23 21:12:24,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:24,304 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:24,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/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)] Ended with exit code 0 [2023-11-23 21:12:24,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:12:24,516 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:24,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:24,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1680786142, now seen corresponding path program 1 times [2023-11-23 21:12:24,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:12:24,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680862245] [2023-11-23 21:12:24,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:24,518 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 [2023-11-23 21:12:24,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:12:24,524 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:12:24,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:12:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:25,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:12:25,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:26,071 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 21:12:26,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:12:26,072 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:12:26,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680862245] [2023-11-23 21:12:26,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680862245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:26,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:26,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:12:26,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455351414] [2023-11-23 21:12:26,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:26,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:12:26,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:12:26,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:12:26,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:12:26,076 INFO L87 Difference]: Start difference. First operand 82 states and 122 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:12:28,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:30,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:32,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:34,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:35,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:35,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:35,787 INFO L93 Difference]: Finished difference Result 146 states and 217 transitions. [2023-11-23 21:12:35,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:12:35,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2023-11-23 21:12:35,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:35,836 INFO L225 Difference]: With dead ends: 146 [2023-11-23 21:12:35,836 INFO L226 Difference]: Without dead ends: 98 [2023-11-23 21:12:35,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:12:35,839 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 41 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 35 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:35,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 204 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 9.6s Time] [2023-11-23 21:12:35,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-23 21:12:35,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 83. [2023-11-23 21:12:35,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 46 states have (on average 1.1956521739130435) internal successors, (55), 46 states have internal predecessors, (55), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-23 21:12:35,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 123 transitions. [2023-11-23 21:12:35,870 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 123 transitions. Word has length 109 [2023-11-23 21:12:35,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:35,871 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 123 transitions. [2023-11-23 21:12:35,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:12:35,872 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 123 transitions. [2023-11-23 21:12:35,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-23 21:12:35,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:35,875 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:35,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:12:36,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:12:36,088 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:36,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:36,089 INFO L85 PathProgramCache]: Analyzing trace with hash 344698060, now seen corresponding path program 1 times [2023-11-23 21:12:36,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:12:36,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [29777296] [2023-11-23 21:12:36,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:36,090 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 [2023-11-23 21:12:36,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:12:36,091 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:12:36,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a98967e2-7beb-49cf-8f2b-86ef37d8a659/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-23 21:12:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:36,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:12:36,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:38,760 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 21:12:38,761 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:12:38,761 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:12:38,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [29777296] [2023-11-23 21:12:38,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [29777296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:38,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:38,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:12:38,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594188047] [2023-11-23 21:12:38,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:38,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:12:38,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:12:38,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:12:38,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:12:38,765 INFO L87 Difference]: Start difference. First operand 83 states and 123 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 21:12:41,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:12:43,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []