./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91 --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 82fbcd39199a525399eb28d721839336007b212e1ad38780097336285e9776e8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:56:41,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:56:41,197 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:56:41,203 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:56:41,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:56:41,229 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:56:41,229 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:56:41,230 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:56:41,231 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:56:41,232 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:56:41,232 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:56:41,233 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:56:41,234 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:56:41,234 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:56:41,235 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:56:41,235 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:56:41,236 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:56:41,237 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:56:41,237 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:56:41,238 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:56:41,239 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:56:41,240 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:56:41,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:56:41,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:56:41,242 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:56:41,243 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:56:41,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:56:41,244 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:56:41,244 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:56:41,245 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:56:41,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:56:41,246 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:56:41,246 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:56:41,247 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:56:41,247 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:56:41,248 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:56:41,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:56:41,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:41,249 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:56:41,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:56:41,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:56:41,250 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:56:41,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:56:41,251 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:56:41,252 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:56:41,252 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:56:41,252 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:56:41,252 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_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82fbcd39199a525399eb28d721839336007b212e1ad38780097336285e9776e8 [2023-11-24 23:56:41,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:56:41,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:56:41,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:56:41,606 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:56:41,607 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:56:41,608 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i [2023-11-24 23:56:44,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:56:45,168 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:56:45,169 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i [2023-11-24 23:56:45,189 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/data/5838694b9/f085bb7f9c0d46089dd95793ac63eaa6/FLAGbe73c64a8 [2023-11-24 23:56:45,204 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/data/5838694b9/f085bb7f9c0d46089dd95793ac63eaa6 [2023-11-24 23:56:45,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:56:45,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:56:45,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:45,211 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:56:45,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:56:45,225 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:56:45" (1/1) ... [2023-11-24 23:56:45,226 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2106e18b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:45, skipping insertion in model container [2023-11-24 23:56:45,226 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:56:45" (1/1) ... [2023-11-24 23:56:45,293 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:56:45,480 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_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i[916,929] [2023-11-24 23:56:45,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:45,581 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:56:45,595 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_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i[916,929] [2023-11-24 23:56:45,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:45,669 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:56:45,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:45 WrapperNode [2023-11-24 23:56:45,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:45,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:45,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:56:45,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:56:45,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:45" (1/1) ... [2023-11-24 23:56:45,733 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:45" (1/1) ... [2023-11-24 23:56:45,788 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 240 [2023-11-24 23:56:45,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:45,789 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:56:45,789 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:56:45,789 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:56:45,799 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:45" (1/1) ... [2023-11-24 23:56:45,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:45" (1/1) ... [2023-11-24 23:56:45,805 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:45" (1/1) ... [2023-11-24 23:56:45,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:45" (1/1) ... [2023-11-24 23:56:45,831 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:45" (1/1) ... [2023-11-24 23:56:45,848 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:45" (1/1) ... [2023-11-24 23:56:45,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:45" (1/1) ... [2023-11-24 23:56:45,872 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:45" (1/1) ... [2023-11-24 23:56:45,881 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:56:45,897 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:56:45,897 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:56:45,897 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:56:45,898 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:45" (1/1) ... [2023-11-24 23:56:45,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:45,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:56:45,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:56:46,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:56:46,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:56:46,058 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:56:46,058 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:56:46,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:56:46,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:56:46,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:56:46,177 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:56:46,179 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:56:46,814 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:56:47,491 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:56:47,491 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:56:47,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:47 BoogieIcfgContainer [2023-11-24 23:56:47,494 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:56:47,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:56:47,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:56:47,502 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:56:47,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:56:45" (1/3) ... [2023-11-24 23:56:47,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1325b35b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:56:47, skipping insertion in model container [2023-11-24 23:56:47,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:45" (2/3) ... [2023-11-24 23:56:47,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1325b35b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:56:47, skipping insertion in model container [2023-11-24 23:56:47,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:47" (3/3) ... [2023-11-24 23:56:47,509 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-16.i [2023-11-24 23:56:47,534 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:56:47,534 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:56:47,606 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:56:47,615 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;@16df9987, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:56:47,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:56:47,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-24 23:56:47,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-24 23:56:47,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:47,635 INFO L195 NwaCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:47,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:56:47,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:47,642 INFO L85 PathProgramCache]: Analyzing trace with hash 972741436, now seen corresponding path program 1 times [2023-11-24 23:56:47,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:47,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594333370] [2023-11-24 23:56:47,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:47,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:47,904 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:56:47,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1102742189] [2023-11-24 23:56:47,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:47,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:56:47,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:56:47,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:56:47,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:56:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:56:48,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:56:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:56:48,682 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:56:48,686 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:56:48,688 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:56:48,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-24 23:56:48,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-24 23:56:48,904 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:56:48,908 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:56:49,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:56:49 BoogieIcfgContainer [2023-11-24 23:56:49,050 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:56:49,051 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:56:49,051 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:56:49,052 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:56:49,052 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:47" (3/4) ... [2023-11-24 23:56:49,055 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:56:49,056 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:56:49,058 INFO L158 Benchmark]: Toolchain (without parser) took 3848.85ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 74.1MB in the beginning and 116.6MB in the end (delta: -42.5MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2023-11-24 23:56:49,059 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 96.5MB. Free memory is still 48.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:56:49,061 INFO L158 Benchmark]: CACSL2BoogieTranslator took 459.70ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 57.6MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 23:56:49,062 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.41ms. Allocated memory is still 117.4MB. Free memory was 57.6MB in the beginning and 52.5MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 23:56:49,068 INFO L158 Benchmark]: Boogie Preprocessor took 107.00ms. Allocated memory is still 117.4MB. Free memory was 52.5MB in the beginning and 49.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:56:49,070 INFO L158 Benchmark]: RCFGBuilder took 1597.13ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 49.9MB in the beginning and 96.3MB in the end (delta: -46.4MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2023-11-24 23:56:49,071 INFO L158 Benchmark]: TraceAbstraction took 1553.45ms. Allocated memory is still 167.8MB. Free memory was 96.3MB in the beginning and 117.6MB in the end (delta: -21.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:56:49,071 INFO L158 Benchmark]: Witness Printer took 5.73ms. Allocated memory is still 167.8MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:56:49,083 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 96.5MB. Free memory is still 48.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 459.70ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 57.6MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 117.41ms. Allocated memory is still 117.4MB. Free memory was 57.6MB in the beginning and 52.5MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 107.00ms. Allocated memory is still 117.4MB. Free memory was 52.5MB in the beginning and 49.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1597.13ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 49.9MB in the beginning and 96.3MB in the end (delta: -46.4MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1553.45ms. Allocated memory is still 167.8MB. Free memory was 96.3MB in the beginning and 117.6MB in the end (delta: -21.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.73ms. Allocated memory is still 167.8MB. Free memory is still 116.6MB. There was no memory consumed. 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 66, overapproximation of bitwiseAnd at line 112, overapproximation of someBinaryDOUBLEComparisonOperation at line 94, overapproximation of someUnaryFLOAToperation at line 89. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 2; [L23] signed char var_1_7 = -25; [L24] signed char var_1_9 = 50; [L25] signed char var_1_10 = -128; [L26] signed char var_1_11 = 0; [L27] signed char var_1_12 = -32; [L28] signed long int var_1_13 = 16; [L29] unsigned char var_1_14 = 1; [L30] unsigned long int var_1_15 = 16; [L31] unsigned char var_1_18 = 0; [L32] unsigned char var_1_19 = 0; [L33] unsigned char var_1_20 = 0; [L34] float var_1_21 = 127.25; [L35] float var_1_23 = 1.5; [L36] float var_1_24 = 100.5; [L37] signed char var_1_25 = 0; [L38] signed char var_1_26 = -2; [L39] signed char var_1_27 = 0; [L40] signed long int var_1_28 = -128; [L41] float var_1_30 = 9.375; [L42] double var_1_31 = 99999999.875; [L43] double var_1_32 = 4.8; [L44] unsigned short int var_1_33 = 0; [L45] unsigned short int var_1_35 = 54252; [L46] unsigned short int var_1_37 = 5; [L47] unsigned char var_1_38 = 4; [L48] signed char var_1_39 = -64; [L49] signed char last_1_var_1_10 = -128; [L50] unsigned char last_1_var_1_18 = 0; [L51] signed char last_1_var_1_25 = 0; [L52] unsigned short int last_1_var_1_33 = 0; [L53] signed char last_1_var_1_39 = -64; [L183] isInitial = 1 [L184] FCALL initially() [L185] COND TRUE 1 [L186] CALL updateLastVariables() [L172] last_1_var_1_10 = var_1_10 [L173] last_1_var_1_18 = var_1_18 [L174] last_1_var_1_25 = var_1_25 [L175] last_1_var_1_33 = var_1_33 [L176] last_1_var_1_39 = var_1_39 [L186] RET updateLastVariables() [L187] CALL updateVariables() [L137] var_1_9 = __VERIFIER_nondet_char() [L138] CALL assume_abort_if_not(var_1_9 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=16, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L138] RET assume_abort_if_not(var_1_9 >= -127) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=16, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L139] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=16, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=16, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L140] var_1_11 = __VERIFIER_nondet_char() [L141] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=16, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=16, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L142] CALL assume_abort_if_not(var_1_11 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=16, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_11 <= 126) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=16, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L143] var_1_13 = __VERIFIER_nondet_long() [L144] CALL assume_abort_if_not(var_1_13 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not(var_1_13 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L145] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L146] CALL assume_abort_if_not(var_1_13 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_13 != 0) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L147] var_1_19 = __VERIFIER_nondet_uchar() [L148] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L149] CALL assume_abort_if_not(var_1_19 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_19 <= 0) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L150] var_1_20 = __VERIFIER_nondet_uchar() [L151] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L152] CALL assume_abort_if_not(var_1_20 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_20 <= 0) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L153] var_1_23 = __VERIFIER_nondet_float() [L154] CALL assume_abort_if_not((var_1_23 >= -922337.2036854765600e+13F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 9223372.036854765600e+12F && var_1_23 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not((var_1_23 >= -922337.2036854765600e+13F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 9223372.036854765600e+12F && var_1_23 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L155] var_1_24 = __VERIFIER_nondet_float() [L156] CALL assume_abort_if_not((var_1_24 >= -922337.2036854765600e+13F && var_1_24 <= -1.0e-20F) || (var_1_24 <= 9223372.036854765600e+12F && var_1_24 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not((var_1_24 >= -922337.2036854765600e+13F && var_1_24 <= -1.0e-20F) || (var_1_24 <= 9223372.036854765600e+12F && var_1_24 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L157] var_1_26 = __VERIFIER_nondet_char() [L158] CALL assume_abort_if_not(var_1_26 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-10, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_26 >= -63) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-10, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L159] CALL assume_abort_if_not(var_1_26 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-10, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_26 <= 63) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-10, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L160] var_1_27 = __VERIFIER_nondet_char() [L161] CALL assume_abort_if_not(var_1_27 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-10, var_1_27=10, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_27 >= -63) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-10, var_1_27=10, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L162] CALL assume_abort_if_not(var_1_27 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-10, var_1_27=10, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_27 <= 63) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-10, var_1_27=10, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L163] var_1_31 = __VERIFIER_nondet_double() [L164] CALL assume_abort_if_not((var_1_31 >= 0.0F && var_1_31 <= -1.0e-20F) || (var_1_31 <= 9223372.036854776000e+12F && var_1_31 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-10, var_1_27=10, var_1_28=-128, var_1_30=75/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not((var_1_31 >= 0.0F && var_1_31 <= -1.0e-20F) || (var_1_31 <= 9223372.036854776000e+12F && var_1_31 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-10, var_1_27=10, var_1_28=-128, var_1_30=75/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L165] var_1_32 = __VERIFIER_nondet_double() [L166] CALL assume_abort_if_not((var_1_32 >= 0.0F && var_1_32 <= -1.0e-20F) || (var_1_32 <= 9223372.036854776000e+12F && var_1_32 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-10, var_1_27=10, var_1_28=-128, var_1_30=75/8, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not((var_1_32 >= 0.0F && var_1_32 <= -1.0e-20F) || (var_1_32 <= 9223372.036854776000e+12F && var_1_32 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-10, var_1_27=10, var_1_28=-128, var_1_30=75/8, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L167] var_1_35 = __VERIFIER_nondet_ushort() [L168] CALL assume_abort_if_not(var_1_35 >= 49150) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-10, var_1_27=10, var_1_28=-128, var_1_30=75/8, var_1_33=0, var_1_35=49150, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not(var_1_35 >= 49150) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-10, var_1_27=10, var_1_28=-128, var_1_30=75/8, var_1_33=0, var_1_35=49150, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L169] CALL assume_abort_if_not(var_1_35 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-10, var_1_27=10, var_1_28=-128, var_1_30=75/8, var_1_33=0, var_1_35=49150, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L169] RET assume_abort_if_not(var_1_35 <= 65534) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-32, var_1_13=-1, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_25=0, var_1_26=-10, var_1_27=10, var_1_28=-128, var_1_30=75/8, var_1_33=0, var_1_35=49150, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L187] RET updateVariables() [L188] CALL step() [L57] unsigned char stepLocal_3 = last_1_var_1_18; [L58] COND FALSE !(stepLocal_3 || var_1_20) [L61] COND FALSE !(\read(var_1_20)) [L65] var_1_18 = (! (var_1_19 || var_1_20)) [L66] COND TRUE (- var_1_24) < var_1_23 [L67] var_1_25 = (((((-10) < (var_1_26)) ? (-10) : (var_1_26))) + var_1_27) [L69] var_1_37 = var_1_11 [L70] var_1_38 = var_1_11 [L71] var_1_39 = var_1_11 [L72] COND TRUE \read(var_1_18) [L73] var_1_7 = var_1_9 [L75] signed char stepLocal_1 = var_1_9; [L76] COND FALSE !((last_1_var_1_10 + var_1_7) > stepLocal_1) [L79] COND FALSE !((var_1_7 / var_1_13) == var_1_25) [L82] COND FALSE !(var_1_13 >= var_1_11) [L85] var_1_12 = var_1_9 [L88] COND TRUE (var_1_11 - var_1_37) != -256 [L89] var_1_21 = ((((((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))) < (var_1_24)) ? (((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))) : (var_1_24))) [L93] signed long int stepLocal_4 = var_1_28; [L94] COND FALSE !(((var_1_31 - var_1_32) + var_1_24) != var_1_23) [L97] COND TRUE stepLocal_4 <= var_1_10 [L98] var_1_30 = var_1_23 [L101] COND TRUE var_1_28 < var_1_37 [L102] var_1_33 = (((26262 - var_1_11) + 18571) - var_1_38) [L122] signed long int stepLocal_0 = var_1_28; [L123] COND TRUE stepLocal_0 >= (var_1_37 * (10u * var_1_33)) [L124] var_1_1 = (var_1_10 + var_1_10) [L128] unsigned long int stepLocal_2 = 1u; [L129] COND FALSE !((((((var_1_13) < (25u)) ? (var_1_13) : (25u))) + var_1_33) == stepLocal_2) [L132] COND TRUE var_1_1 <= var_1_33 [L133] var_1_15 = ((((var_1_11) > (var_1_37)) ? (var_1_11) : (var_1_37))) [L188] RET step() [L189] CALL, EXPR property() [L179] EXPR ((((((((((((var_1_28 >= (var_1_37 * (10u * var_1_33))) ? (var_1_1 == ((signed short int) (var_1_10 + var_1_10))) : (var_1_1 == ((signed short int) var_1_10))) && (var_1_18 ? (var_1_7 == ((signed char) var_1_9)) : 1)) && (((last_1_var_1_10 + var_1_7) > var_1_9) ? (var_1_10 == ((signed char) (1 - var_1_11))) : 1)) && (((var_1_7 / var_1_13) == var_1_25) ? (var_1_12 == ((signed char) var_1_9)) : ((var_1_13 >= var_1_11) ? (var_1_12 == ((signed char) var_1_11)) : (var_1_12 == ((signed char) var_1_9))))) && (((((((var_1_13) < (25u)) ? (var_1_13) : (25u))) + var_1_33) == 1u) ? (var_1_14 == ((unsigned char) (! 0))) : 1)) && ((var_1_1 <= var_1_33) ? (var_1_15 == ((unsigned long int) ((((var_1_11) > (var_1_37)) ? (var_1_11) : (var_1_37))))) : 1)) && (var_1_18 == ((unsigned char) (! (var_1_19 || var_1_20))))) && (((var_1_11 - var_1_37) != -256) ? (var_1_21 == ((float) ((((((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))) < (var_1_24)) ? (((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))) : (var_1_24))))) : (var_1_21 == ((float) var_1_23)))) && (((- var_1_24) < var_1_23) ? (var_1_25 == ((signed char) (((((-10) < (var_1_26)) ? (-10) : (var_1_26))) + var_1_27))) : 1)) && ((last_1_var_1_18 || var_1_20) ? (var_1_28 == ((signed long int) (((((((((var_1_27) < 0 ) ? -(var_1_27) : (var_1_27))) - (var_1_11 + last_1_var_1_33))) > (last_1_var_1_25)) ? ((((((var_1_27) < 0 ) ? -(var_1_27) : (var_1_27))) - (var_1_11 + last_1_var_1_33))) : (last_1_var_1_25))))) : (var_1_20 ? (var_1_28 == ((signed long int) ((((last_1_var_1_33) > ((last_1_var_1_39 + last_1_var_1_25))) ? (last_1_var_1_33) : ((last_1_var_1_39 + last_1_var_1_25)))))) : 1))) && ((((var_1_31 - var_1_32) + var_1_24) != var_1_23) ? (var_1_30 == ((float) ((((var_1_23) < (var_1_24)) ? (var_1_23) : (var_1_24))))) : ((var_1_28 <= var_1_10) ? (var_1_30 == ((float) var_1_23)) : 1))) && ((var_1_28 < var_1_37) ? (var_1_33 == ((unsigned short int) (((26262 - var_1_11) + 18571) - var_1_38))) : ((! var_1_18) ? ((var_1_10 != (var_1_38 & (var_1_11 - 32))) ? (var_1_33 == ((unsigned short int) ((((((var_1_35 - var_1_11) - var_1_38)) < (var_1_38)) ? (((var_1_35 - var_1_11) - var_1_38)) : (var_1_38))))) : (var_1_33 == ((unsigned short int) (var_1_35 - var_1_38)))) : ((128u > var_1_38) ? (((var_1_38 * var_1_38) == (var_1_38 & var_1_28)) ? (var_1_33 == ((unsigned short int) var_1_11)) : (var_1_33 == ((unsigned short int) ((((((((var_1_11) > (var_1_35)) ? (var_1_11) : (var_1_35)))) < (var_1_38)) ? (((((var_1_11) > (var_1_35)) ? (var_1_11) : (var_1_35)))) : (var_1_38)))))) : (var_1_33 == ((unsigned short int) var_1_38))))) [L179-L180] return (((((((((((((((var_1_28 >= (var_1_37 * (10u * var_1_33))) ? (var_1_1 == ((signed short int) (var_1_10 + var_1_10))) : (var_1_1 == ((signed short int) var_1_10))) && (var_1_18 ? (var_1_7 == ((signed char) var_1_9)) : 1)) && (((last_1_var_1_10 + var_1_7) > var_1_9) ? (var_1_10 == ((signed char) (1 - var_1_11))) : 1)) && (((var_1_7 / var_1_13) == var_1_25) ? (var_1_12 == ((signed char) var_1_9)) : ((var_1_13 >= var_1_11) ? (var_1_12 == ((signed char) var_1_11)) : (var_1_12 == ((signed char) var_1_9))))) && (((((((var_1_13) < (25u)) ? (var_1_13) : (25u))) + var_1_33) == 1u) ? (var_1_14 == ((unsigned char) (! 0))) : 1)) && ((var_1_1 <= var_1_33) ? (var_1_15 == ((unsigned long int) ((((var_1_11) > (var_1_37)) ? (var_1_11) : (var_1_37))))) : 1)) && (var_1_18 == ((unsigned char) (! (var_1_19 || var_1_20))))) && (((var_1_11 - var_1_37) != -256) ? (var_1_21 == ((float) ((((((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))) < (var_1_24)) ? (((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))) : (var_1_24))))) : (var_1_21 == ((float) var_1_23)))) && (((- var_1_24) < var_1_23) ? (var_1_25 == ((signed char) (((((-10) < (var_1_26)) ? (-10) : (var_1_26))) + var_1_27))) : 1)) && ((last_1_var_1_18 || var_1_20) ? (var_1_28 == ((signed long int) (((((((((var_1_27) < 0 ) ? -(var_1_27) : (var_1_27))) - (var_1_11 + last_1_var_1_33))) > (last_1_var_1_25)) ? ((((((var_1_27) < 0 ) ? -(var_1_27) : (var_1_27))) - (var_1_11 + last_1_var_1_33))) : (last_1_var_1_25))))) : (var_1_20 ? (var_1_28 == ((signed long int) ((((last_1_var_1_33) > ((last_1_var_1_39 + last_1_var_1_25))) ? (last_1_var_1_33) : ((last_1_var_1_39 + last_1_var_1_25)))))) : 1))) && ((((var_1_31 - var_1_32) + var_1_24) != var_1_23) ? (var_1_30 == ((float) ((((var_1_23) < (var_1_24)) ? (var_1_23) : (var_1_24))))) : ((var_1_28 <= var_1_10) ? (var_1_30 == ((float) var_1_23)) : 1))) && ((var_1_28 < var_1_37) ? (var_1_33 == ((unsigned short int) (((26262 - var_1_11) + 18571) - var_1_38))) : ((! var_1_18) ? ((var_1_10 != (var_1_38 & (var_1_11 - 32))) ? (var_1_33 == ((unsigned short int) ((((((var_1_35 - var_1_11) - var_1_38)) < (var_1_38)) ? (((var_1_35 - var_1_11) - var_1_38)) : (var_1_38))))) : (var_1_33 == ((unsigned short int) (var_1_35 - var_1_38)))) : ((128u > var_1_38) ? (((var_1_38 * var_1_38) == (var_1_38 & var_1_28)) ? (var_1_33 == ((unsigned short int) var_1_11)) : (var_1_33 == ((unsigned short int) ((((((((var_1_11) > (var_1_35)) ? (var_1_11) : (var_1_35)))) < (var_1_38)) ? (((((var_1_11) > (var_1_35)) ? (var_1_11) : (var_1_35)))) : (var_1_38)))))) : (var_1_33 == ((unsigned short int) var_1_38)))))) && (var_1_37 == ((unsigned short int) var_1_11))) && (var_1_38 == ((unsigned char) var_1_11))) && (var_1_39 == ((signed char) var_1_11)) ; [L189] RET, EXPR property() [L189] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-1, var_1_13=-1, var_1_14=1, var_1_15=1, var_1_18=1, var_1_19=0, var_1_1=-256, var_1_20=0, var_1_21=3, var_1_23=2, var_1_24=0, var_1_25=0, var_1_26=-10, var_1_27=10, var_1_28=-128, var_1_30=2, var_1_33=44831, var_1_35=49150, var_1_37=1, var_1_38=1, var_1_39=1, var_1_7=-1, var_1_9=-1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=1, var_1_12=-1, var_1_13=-1, var_1_14=1, var_1_15=1, var_1_18=1, var_1_19=0, var_1_1=-256, var_1_20=0, var_1_21=3, var_1_23=2, var_1_24=0, var_1_25=0, var_1_26=-10, var_1_27=10, var_1_28=-128, var_1_30=2, var_1_33=44831, var_1_35=49150, var_1_37=1, var_1_38=1, var_1_39=1, var_1_7=-1, var_1_9=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 21, 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=42occurred 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 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 [2023-11-24 23:56:49,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/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_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91 --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 82fbcd39199a525399eb28d721839336007b212e1ad38780097336285e9776e8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:56:52,002 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:56:52,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-24 23:56:52,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:56:52,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:56:52,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:56:52,209 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:56:52,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:56:52,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:56:52,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:56:52,217 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:56:52,217 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:56:52,218 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:56:52,220 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:56:52,220 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:56:52,221 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:56:52,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:56:52,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:56:52,223 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:56:52,225 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:56:52,225 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:56:52,226 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:56:52,226 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:56:52,227 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:56:52,227 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:56:52,228 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:56:52,228 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:56:52,228 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:56:52,229 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:56:52,229 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:56:52,231 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:56:52,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:56:52,231 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:56:52,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:56:52,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:52,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:56:52,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:56:52,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:56:52,233 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:56:52,234 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:56:52,235 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:56:52,235 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:56:52,235 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:56:52,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:56:52,236 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_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82fbcd39199a525399eb28d721839336007b212e1ad38780097336285e9776e8 [2023-11-24 23:56:52,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:56:52,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:56:52,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:56:52,713 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:56:52,713 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:56:52,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i [2023-11-24 23:56:55,973 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:56:56,318 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:56:56,319 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i [2023-11-24 23:56:56,331 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/data/eef413450/baad0285a58444a1b024066ae0da5db4/FLAGd63fe67ce [2023-11-24 23:56:56,349 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/data/eef413450/baad0285a58444a1b024066ae0da5db4 [2023-11-24 23:56:56,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:56:56,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:56:56,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:56,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:56:56,361 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:56:56,362 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:56:56" (1/1) ... [2023-11-24 23:56:56,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4028d87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:56, skipping insertion in model container [2023-11-24 23:56:56,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:56:56" (1/1) ... [2023-11-24 23:56:56,404 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:56:56,602 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_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i[916,929] [2023-11-24 23:56:56,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:56,767 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:56:56,793 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_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i[916,929] [2023-11-24 23:56:56,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:56,915 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:56:56,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:56 WrapperNode [2023-11-24 23:56:56,916 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:56,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:56,918 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:56:56,918 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:56:56,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:56" (1/1) ... [2023-11-24 23:56:56,957 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:56" (1/1) ... [2023-11-24 23:56:56,998 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 177 [2023-11-24 23:56:56,999 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:57,000 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:56:57,000 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:56:57,000 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:56:57,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:56" (1/1) ... [2023-11-24 23:56:57,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:56" (1/1) ... [2023-11-24 23:56:57,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:56" (1/1) ... [2023-11-24 23:56:57,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:56" (1/1) ... [2023-11-24 23:56:57,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:56" (1/1) ... [2023-11-24 23:56:57,044 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:56" (1/1) ... [2023-11-24 23:56:57,048 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:56" (1/1) ... [2023-11-24 23:56:57,051 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:56" (1/1) ... [2023-11-24 23:56:57,058 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:56:57,059 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:56:57,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:56:57,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:56:57,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:56" (1/1) ... [2023-11-24 23:56:57,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:57,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:56:57,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:56:57,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:56:57,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:56:57,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:56:57,137 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:56:57,137 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:56:57,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:56:57,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:56:57,246 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:56:57,248 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:57:03,970 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:57:04,082 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:57:04,083 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:57:04,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:57:04 BoogieIcfgContainer [2023-11-24 23:57:04,083 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:57:04,086 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:57:04,086 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:57:04,090 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:57:04,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:56:56" (1/3) ... [2023-11-24 23:57:04,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d58d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:57:04, skipping insertion in model container [2023-11-24 23:57:04,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:56" (2/3) ... [2023-11-24 23:57:04,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d58d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:57:04, skipping insertion in model container [2023-11-24 23:57:04,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:57:04" (3/3) ... [2023-11-24 23:57:04,094 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-16.i [2023-11-24 23:57:04,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:57:04,116 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:57:04,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:57:04,201 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;@58a6acdc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:57:04,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:57:04,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 46 states have (on average 1.5) internal successors, (69), 47 states have internal predecessors, (69), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-24 23:57:04,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-24 23:57:04,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:04,229 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:04,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:57:04,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:04,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1991059636, now seen corresponding path program 1 times [2023-11-24 23:57:04,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:57:04,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592334127] [2023-11-24 23:57:04,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:04,253 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 [2023-11-24 23:57:04,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:57:04,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:57:04,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:57:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:04,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:57:04,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:57:04,835 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 424 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2023-11-24 23:57:04,836 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:57:04,837 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:57:04,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592334127] [2023-11-24 23:57:04,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592334127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:04,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:04,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:57:04,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476640577] [2023-11-24 23:57:04,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:04,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:57:04,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:57:04,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:57:04,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:57:04,909 INFO L87 Difference]: Start difference. First operand has 70 states, 46 states have (on average 1.5) internal successors, (69), 47 states have internal predecessors, (69), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-24 23:57:06,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:57:06,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:06,900 INFO L93 Difference]: Finished difference Result 137 states and 241 transitions. [2023-11-24 23:57:06,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:57:06,932 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 139 [2023-11-24 23:57:06,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:06,941 INFO L225 Difference]: With dead ends: 137 [2023-11-24 23:57:06,941 INFO L226 Difference]: Without dead ends: 68 [2023-11-24 23:57:06,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:57:06,948 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:06,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-24 23:57:06,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-24 23:57:06,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-24 23:57:06,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 45 states have internal predecessors, (64), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-24 23:57:06,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 106 transitions. [2023-11-24 23:57:06,999 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 106 transitions. Word has length 139 [2023-11-24 23:57:07,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:07,000 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 106 transitions. [2023-11-24 23:57:07,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-24 23:57:07,001 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 106 transitions. [2023-11-24 23:57:07,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-24 23:57:07,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:07,005 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:07,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:57:07,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:57:07,209 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:57:07,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:07,210 INFO L85 PathProgramCache]: Analyzing trace with hash -700443306, now seen corresponding path program 1 times [2023-11-24 23:57:07,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:57:07,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833941089] [2023-11-24 23:57:07,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:07,212 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 [2023-11-24 23:57:07,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:57:07,214 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:57:07,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:57:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:07,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:57:07,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:57:08,945 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-24 23:57:08,946 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:57:09,561 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-24 23:57:09,561 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:57:09,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833941089] [2023-11-24 23:57:09,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833941089] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:57:09,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [207098728] [2023-11-24 23:57:09,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:09,562 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:57:09,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:57:09,602 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:57:09,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 23:57:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:10,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:57:10,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:57:11,334 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-24 23:57:11,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:57:11,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [207098728] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:11,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-24 23:57:11,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 8] total 12 [2023-11-24 23:57:11,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591963160] [2023-11-24 23:57:11,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:11,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:57:11,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:57:11,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:57:11,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-24 23:57:11,340 INFO L87 Difference]: Start difference. First operand 68 states and 106 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-24 23:57:13,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:57:15,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:57:17,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:57:20,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:57:21,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:57:21,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:21,949 INFO L93 Difference]: Finished difference Result 352 states and 551 transitions. [2023-11-24 23:57:21,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 23:57:21,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 139 [2023-11-24 23:57:21,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:21,955 INFO L225 Difference]: With dead ends: 352 [2023-11-24 23:57:21,955 INFO L226 Difference]: Without dead ends: 285 [2023-11-24 23:57:21,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 403 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2023-11-24 23:57:21,959 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 431 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 71 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:21,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 656 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 43 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2023-11-24 23:57:21,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-24 23:57:22,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 165. [2023-11-24 23:57:22,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 110 states have (on average 1.4) internal successors, (154), 111 states have internal predecessors, (154), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-24 23:57:22,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 256 transitions. [2023-11-24 23:57:22,010 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 256 transitions. Word has length 139 [2023-11-24 23:57:22,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:22,011 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 256 transitions. [2023-11-24 23:57:22,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-24 23:57:22,012 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 256 transitions. [2023-11-24 23:57:22,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-24 23:57:22,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:22,015 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:22,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:57:22,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-24 23:57:22,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt [2023-11-24 23:57:22,427 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:57:22,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:22,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1721511660, now seen corresponding path program 1 times [2023-11-24 23:57:22,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:57:22,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318321416] [2023-11-24 23:57:22,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:22,429 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 [2023-11-24 23:57:22,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:57:22,430 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:57:22,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:57:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:22,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:57:22,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:57:23,879 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-24 23:57:23,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:57:24,475 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-24 23:57:24,476 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:57:24,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [318321416] [2023-11-24 23:57:24,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [318321416] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:57:24,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [354942762] [2023-11-24 23:57:24,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:24,477 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:57:24,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:57:24,481 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:57:24,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-24 23:57:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:25,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 23:57:25,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:57:26,326 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 168 proven. 54 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2023-11-24 23:57:26,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:57:26,544 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-24 23:57:26,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [354942762] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-24 23:57:26,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-24 23:57:26,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 8, 6] total 15 [2023-11-24 23:57:26,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513388781] [2023-11-24 23:57:26,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:26,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:57:26,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:57:26,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:57:26,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-11-24 23:57:26,547 INFO L87 Difference]: Start difference. First operand 165 states and 256 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-24 23:57:28,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:57:28,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:28,836 INFO L93 Difference]: Finished difference Result 341 states and 520 transitions. [2023-11-24 23:57:28,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:57:28,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 139 [2023-11-24 23:57:28,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:28,880 INFO L225 Difference]: With dead ends: 341 [2023-11-24 23:57:28,880 INFO L226 Difference]: Without dead ends: 177 [2023-11-24 23:57:28,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 538 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-11-24 23:57:28,884 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 42 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:28,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 145 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2023-11-24 23:57:28,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-24 23:57:28,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2023-11-24 23:57:28,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 119 states have (on average 1.3445378151260505) internal successors, (160), 120 states have internal predecessors, (160), 51 states have call successors, (51), 6 states have call predecessors, (51), 6 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-24 23:57:28,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 262 transitions. [2023-11-24 23:57:28,949 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 262 transitions. Word has length 139 [2023-11-24 23:57:28,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:28,950 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 262 transitions. [2023-11-24 23:57:28,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-24 23:57:28,951 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 262 transitions. [2023-11-24 23:57:28,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-24 23:57:28,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:28,961 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:28,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-24 23:57:29,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-24 23:57:29,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:57:29,372 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:57:29,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:29,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1979677098, now seen corresponding path program 1 times [2023-11-24 23:57:29,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:57:29,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378036199] [2023-11-24 23:57:29,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:29,373 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 [2023-11-24 23:57:29,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:57:29,375 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:57:29,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-24 23:57:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:29,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:57:29,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:57:30,885 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-24 23:57:30,886 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:57:31,468 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-24 23:57:31,469 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:57:31,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378036199] [2023-11-24 23:57:31,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378036199] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:57:31,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [949296699] [2023-11-24 23:57:31,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:31,469 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:57:31,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:57:31,473 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:57:31,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-24 23:57:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:32,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:57:32,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:57:33,531 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-24 23:57:33,531 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:57:33,992 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-24 23:57:33,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [949296699] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:57:33,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906280397] [2023-11-24 23:57:33,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:33,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:57:33,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:57:33,996 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:57:34,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ac4abb2-e73e-4f19-b6b3-0b2596eea8f9/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-24 23:57:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:34,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:57:34,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:57:35,049 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-24 23:57:35,049 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:57:35,444 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-24 23:57:35,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906280397] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:57:35,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-24 23:57:35,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7, 8, 7, 8] total 10 [2023-11-24 23:57:35,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223353780] [2023-11-24 23:57:35,445 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-24 23:57:35,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-24 23:57:35,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:57:35,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-24 23:57:35,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-24 23:57:35,448 INFO L87 Difference]: Start difference. First operand 177 states and 262 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (42), 3 states have call predecessors, (42), 5 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-11-24 23:57:38,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:57:39,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []