./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.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_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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_285229ab-b569-4868-84df-0fe82693cad4/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 65abe7cb35c9006c604c8d360a97fa1428e6f141c9dbba60a5491dff00208bf7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:58:37,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:58:37,929 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:58:37,941 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:58:37,942 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:58:38,015 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:58:38,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:58:38,017 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:58:38,018 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:58:38,018 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:58:38,019 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:58:38,020 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:58:38,020 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:58:38,021 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:58:38,022 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:58:38,022 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:58:38,023 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:58:38,023 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:58:38,024 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:58:38,025 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:58:38,025 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:58:38,026 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:58:38,027 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:58:38,027 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:58:38,028 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:58:38,028 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:58:38,029 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:58:38,029 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:58:38,030 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:58:38,030 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:58:38,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:58:38,031 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:58:38,032 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:58:38,032 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:58:38,032 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:58:38,033 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:58:38,047 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:58:38,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:58:38,047 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:58:38,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:58:38,048 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:58:38,049 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:58:38,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:58:38,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:58:38,050 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:58:38,050 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:58:38,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:58:38,050 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_285229ab-b569-4868-84df-0fe82693cad4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65abe7cb35c9006c604c8d360a97fa1428e6f141c9dbba60a5491dff00208bf7 [2023-11-24 23:58:38,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:58:38,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:58:38,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:58:38,447 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:58:38,448 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:58:38,449 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i [2023-11-24 23:58:41,488 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:58:41,743 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:58:41,744 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i [2023-11-24 23:58:41,755 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/data/3773053b8/fec948d205544e4fb07da9797a696ffb/FLAG4905b902f [2023-11-24 23:58:41,793 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/data/3773053b8/fec948d205544e4fb07da9797a696ffb [2023-11-24 23:58:41,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:58:41,798 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:58:41,799 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:58:41,799 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:58:41,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:58:41,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:58:41" (1/1) ... [2023-11-24 23:58:41,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8f9e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:41, skipping insertion in model container [2023-11-24 23:58:41,808 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:58:41" (1/1) ... [2023-11-24 23:58:41,837 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:58:41,995 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_285229ab-b569-4868-84df-0fe82693cad4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i[912,925] [2023-11-24 23:58:42,053 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:58:42,072 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:58:42,100 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_285229ab-b569-4868-84df-0fe82693cad4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i[912,925] [2023-11-24 23:58:42,140 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:58:42,158 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:58:42,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:42 WrapperNode [2023-11-24 23:58:42,159 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:58:42,160 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:58:42,161 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:58:42,161 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:58:42,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:42" (1/1) ... [2023-11-24 23:58:42,180 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:42" (1/1) ... [2023-11-24 23:58:42,227 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2023-11-24 23:58:42,227 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:58:42,228 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:58:42,228 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:58:42,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:58:42,239 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:42" (1/1) ... [2023-11-24 23:58:42,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:42" (1/1) ... [2023-11-24 23:58:42,242 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:42" (1/1) ... [2023-11-24 23:58:42,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:42" (1/1) ... [2023-11-24 23:58:42,252 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:42" (1/1) ... [2023-11-24 23:58:42,256 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:42" (1/1) ... [2023-11-24 23:58:42,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:42" (1/1) ... [2023-11-24 23:58:42,260 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:42" (1/1) ... [2023-11-24 23:58:42,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:58:42,265 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:58:42,266 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:58:42,266 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:58:42,267 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:42" (1/1) ... [2023-11-24 23:58:42,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:58:42,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:58:42,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:58:42,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:58:42,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:58:42,351 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:58:42,352 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:58:42,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:58:42,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:58:42,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:58:42,434 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:58:42,437 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:58:42,790 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:58:42,962 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:58:42,962 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:58:42,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:58:42 BoogieIcfgContainer [2023-11-24 23:58:42,964 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:58:42,966 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:58:42,967 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:58:42,970 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:58:42,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:58:41" (1/3) ... [2023-11-24 23:58:42,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20ea9631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:58:42, skipping insertion in model container [2023-11-24 23:58:42,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:42" (2/3) ... [2023-11-24 23:58:42,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20ea9631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:58:42, skipping insertion in model container [2023-11-24 23:58:42,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:58:42" (3/3) ... [2023-11-24 23:58:42,974 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-6.i [2023-11-24 23:58:42,995 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:58:42,996 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:58:43,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:58:43,056 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;@1d2465b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:58:43,057 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:58:43,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-24 23:58:43,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-24 23:58:43,074 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:58:43,075 INFO L195 NwaCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:58:43,075 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:58:43,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:58:43,082 INFO L85 PathProgramCache]: Analyzing trace with hash 451450714, now seen corresponding path program 1 times [2023-11-24 23:58:43,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:58:43,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746281601] [2023-11-24 23:58:43,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:58:43,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:58:43,315 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:58:43,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2078490400] [2023-11-24 23:58:43,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:58:43,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:58:43,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:58:43,321 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:58:43,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:58:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:58:43,684 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:58:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:58:44,029 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:58:44,037 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:58:44,038 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:58:44,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:58:44,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-24 23:58:44,257 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:58:44,264 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:58:44,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:58:44 BoogieIcfgContainer [2023-11-24 23:58:44,380 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:58:44,381 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:58:44,381 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:58:44,381 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:58:44,382 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:58:42" (3/4) ... [2023-11-24 23:58:44,384 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:58:44,386 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:58:44,387 INFO L158 Benchmark]: Toolchain (without parser) took 2589.04ms. Allocated memory is still 190.8MB. Free memory was 160.8MB in the beginning and 99.8MB in the end (delta: 61.0MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2023-11-24 23:58:44,387 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:58:44,388 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.51ms. Allocated memory is still 190.8MB. Free memory was 160.8MB in the beginning and 147.5MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:58:44,389 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.94ms. Allocated memory is still 190.8MB. Free memory was 147.5MB in the beginning and 144.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:58:44,389 INFO L158 Benchmark]: Boogie Preprocessor took 36.41ms. Allocated memory is still 190.8MB. Free memory was 144.7MB in the beginning and 143.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:58:44,390 INFO L158 Benchmark]: RCFGBuilder took 699.05ms. Allocated memory is still 190.8MB. Free memory was 143.3MB in the beginning and 135.4MB in the end (delta: 7.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:58:44,391 INFO L158 Benchmark]: TraceAbstraction took 1413.98ms. Allocated memory is still 190.8MB. Free memory was 135.4MB in the beginning and 99.8MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-24 23:58:44,391 INFO L158 Benchmark]: Witness Printer took 4.65ms. Allocated memory is still 190.8MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:58:44,404 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.51ms. Allocated memory is still 190.8MB. Free memory was 160.8MB in the beginning and 147.5MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.94ms. Allocated memory is still 190.8MB. Free memory was 147.5MB in the beginning and 144.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.41ms. Allocated memory is still 190.8MB. Free memory was 144.7MB in the beginning and 143.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 699.05ms. Allocated memory is still 190.8MB. Free memory was 143.3MB in the beginning and 135.4MB in the end (delta: 7.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1413.98ms. Allocated memory is still 190.8MB. Free memory was 135.4MB in the beginning and 99.8MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.65ms. Allocated memory is still 190.8MB. Free memory is still 99.8MB. 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 someBinaryDOUBLEComparisonOperation at line 45. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 0; [L23] unsigned short int var_1_4 = 32; [L24] unsigned short int var_1_6 = 10; [L25] signed long int var_1_7 = 4; [L26] signed long int var_1_8 = 2; [L27] double var_1_9 = 0.0; [L28] double var_1_10 = 64.2; [L29] double var_1_11 = 0.0; [L30] double var_1_12 = 0.25; [L31] unsigned short int var_1_13 = 36833; [L32] unsigned char var_1_14 = 0; [L33] unsigned char var_1_16 = 0; [L34] unsigned char var_1_17 = 0; [L35] signed long int var_1_18 = -32; [L36] unsigned long int var_1_20 = 50; [L37] unsigned long int var_1_21 = 2655070710; [L38] unsigned char last_1_var_1_14 = 0; [L39] signed long int last_1_var_1_18 = -32; [L40] unsigned long int last_1_var_1_20 = 50; [L110] isInitial = 1 [L111] FCALL initially() [L112] COND TRUE 1 [L113] CALL updateLastVariables() [L101] last_1_var_1_14 = var_1_14 [L102] last_1_var_1_18 = var_1_18 [L103] last_1_var_1_20 = var_1_20 [L113] RET updateLastVariables() [L114] CALL updateVariables() [L69] var_1_4 = __VERIFIER_nondet_ushort() [L70] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_6=10, var_1_7=4, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_6=10, var_1_7=4, var_1_8=2, var_1_9=0] [L71] CALL assume_abort_if_not(var_1_4 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_6=10, var_1_7=4, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_4 <= 65535) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_6=10, var_1_7=4, var_1_8=2, var_1_9=0] [L72] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=4, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=4, var_1_8=2, var_1_9=0] [L73] var_1_7 = __VERIFIER_nondet_long() [L74] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=2, var_1_9=0] [L75] CALL assume_abort_if_not(var_1_7 <= 17) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_7 <= 17) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=2, var_1_9=0] [L76] var_1_8 = __VERIFIER_nondet_long() [L77] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16, var_1_9=0] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16, var_1_9=0] [L78] CALL assume_abort_if_not(var_1_8 <= 16) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16, var_1_9=0] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_8 <= 16) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16, var_1_9=0] [L79] var_1_9 = __VERIFIER_nondet_double() [L80] CALL assume_abort_if_not((var_1_9 >= 4611686.018427387900e+12F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((var_1_9 >= 4611686.018427387900e+12F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_10=321/5, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L81] var_1_10 = __VERIFIER_nondet_double() [L82] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427387900e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427387900e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_11=0, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L83] var_1_11 = __VERIFIER_nondet_double() [L84] CALL assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_12=1/4, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L85] var_1_12 = __VERIFIER_nondet_double() [L86] CALL assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=36833, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L87] var_1_13 = __VERIFIER_nondet_ushort() [L88] CALL assume_abort_if_not(var_1_13 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_13 >= 32767) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L89] CALL assume_abort_if_not(var_1_13 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_13 <= 65534) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=0, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L90] var_1_16 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_16 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=1, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_16 >= 1) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=1, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L92] CALL assume_abort_if_not(var_1_16 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=1, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_16 <= 1) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=1, var_1_17=0, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L93] var_1_17 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L95] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=2655070710, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L96] var_1_21 = __VERIFIER_nondet_ulong() [L97] CALL assume_abort_if_not(var_1_21 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=3251903808, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_21 >= 2147483647) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=3251903808, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L98] CALL assume_abort_if_not(var_1_21 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=3251903808, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_21 <= 4294967294) VAL [isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=-32, var_1_1=0, var_1_20=50, var_1_21=3251903808, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L114] RET updateVariables() [L115] CALL step() [L44] COND TRUE (var_1_4 - last_1_var_1_20) == last_1_var_1_18 [L45] COND FALSE !(((var_1_9 - var_1_10) - var_1_11) > var_1_12) [L51] COND TRUE var_1_13 > var_1_6 [L52] var_1_18 = (((((var_1_6) < (var_1_13)) ? (var_1_6) : (var_1_13))) - var_1_6) [L54] COND FALSE !(\read(last_1_var_1_14)) [L57] var_1_20 = ((((((((last_1_var_1_20) < 0 ) ? -(last_1_var_1_20) : (last_1_var_1_20)))) < ((var_1_21 - var_1_7))) ? (((((last_1_var_1_20) < 0 ) ? -(last_1_var_1_20) : (last_1_var_1_20)))) : ((var_1_21 - var_1_7)))) [L58] unsigned long int stepLocal_1 = var_1_20; [L59] unsigned long int stepLocal_0 = var_1_20; [L60] COND FALSE !((((((var_1_18) > (var_1_18)) ? (var_1_18) : (var_1_18))) / var_1_4) > stepLocal_1) [L115] RET step() [L116] CALL, EXPR property() [L106-L107] return ((((((((((var_1_18) > (var_1_18)) ? (var_1_18) : (var_1_18))) / var_1_4) > var_1_20) ? ((var_1_20 == var_1_18) ? (var_1_1 == ((unsigned long int) 1000000000u)) : (var_1_1 == ((unsigned long int) 128u))) : 1) && (((var_1_4 - last_1_var_1_20) == last_1_var_1_18) ? ((((var_1_9 - var_1_10) - var_1_11) > var_1_12) ? (var_1_6 == ((unsigned short int) (var_1_13 - var_1_8))) : 1) : (var_1_6 == ((unsigned short int) var_1_13)))) && (last_1_var_1_14 ? (var_1_14 == ((unsigned char) (var_1_16 && var_1_17))) : 1)) && ((var_1_13 > var_1_6) ? (var_1_18 == ((signed long int) (((((var_1_6) < (var_1_13)) ? (var_1_6) : (var_1_13))) - var_1_6))) : 1)) && (var_1_20 == ((unsigned long int) ((((((((last_1_var_1_20) < 0 ) ? -(last_1_var_1_20) : (last_1_var_1_20)))) < ((var_1_21 - var_1_7))) ? (((((last_1_var_1_20) < 0 ) ? -(last_1_var_1_20) : (last_1_var_1_20)))) : ((var_1_21 - var_1_7)))))) ; [L116] RET, EXPR property() [L116] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=0, var_1_20=50, var_1_21=3251903808, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=0, last_1_var_1_18=-32, last_1_var_1_20=50, var_1_13=65534, var_1_14=0, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=0, var_1_20=50, var_1_21=3251903808, var_1_4=18, var_1_6=10, var_1_7=0, var_1_8=16] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 19, 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=39occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 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 23:58:44,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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_285229ab-b569-4868-84df-0fe82693cad4/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 65abe7cb35c9006c604c8d360a97fa1428e6f141c9dbba60a5491dff00208bf7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:58:47,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:58:47,403 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-24 23:58:47,411 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:58:47,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:58:47,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:58:47,458 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:58:47,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:58:47,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:58:47,465 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:58:47,465 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:58:47,466 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:58:47,466 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:58:47,468 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:58:47,468 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:58:47,469 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:58:47,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:58:47,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:58:47,471 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:58:47,472 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:58:47,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:58:47,473 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:58:47,474 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:58:47,474 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:58:47,474 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:58:47,475 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:58:47,475 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:58:47,475 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:58:47,476 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:58:47,476 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:58:47,478 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:58:47,478 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:58:47,478 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:58:47,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:58:47,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:58:47,479 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:58:47,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:58:47,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:58:47,480 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:58:47,481 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:58:47,481 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:58:47,481 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:58:47,481 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:58:47,482 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:58:47,482 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_285229ab-b569-4868-84df-0fe82693cad4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65abe7cb35c9006c604c8d360a97fa1428e6f141c9dbba60a5491dff00208bf7 [2023-11-24 23:58:47,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:58:47,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:58:47,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:58:47,899 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:58:47,899 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:58:47,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i [2023-11-24 23:58:51,177 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:58:51,487 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:58:51,488 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i [2023-11-24 23:58:51,498 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/data/cfd10c2e1/25baa59d113440dfa4213d1bd56cfac0/FLAGa83d999a4 [2023-11-24 23:58:51,513 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/data/cfd10c2e1/25baa59d113440dfa4213d1bd56cfac0 [2023-11-24 23:58:51,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:58:51,517 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:58:51,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:58:51,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:58:51,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:58:51,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:58:51" (1/1) ... [2023-11-24 23:58:51,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5699c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:51, skipping insertion in model container [2023-11-24 23:58:51,527 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:58:51" (1/1) ... [2023-11-24 23:58:51,560 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:58:51,722 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_285229ab-b569-4868-84df-0fe82693cad4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i[912,925] [2023-11-24 23:58:51,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:58:51,791 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:58:51,805 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_285229ab-b569-4868-84df-0fe82693cad4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-6.i[912,925] [2023-11-24 23:58:51,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:58:51,854 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:58:51,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:51 WrapperNode [2023-11-24 23:58:51,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:58:51,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:58:51,857 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:58:51,857 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:58:51,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:51" (1/1) ... [2023-11-24 23:58:51,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:51" (1/1) ... [2023-11-24 23:58:51,917 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123 [2023-11-24 23:58:51,924 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:58:51,925 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:58:51,925 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:58:51,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:58:51,936 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:51" (1/1) ... [2023-11-24 23:58:51,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:51" (1/1) ... [2023-11-24 23:58:51,945 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:51" (1/1) ... [2023-11-24 23:58:51,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:51" (1/1) ... [2023-11-24 23:58:51,964 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:51" (1/1) ... [2023-11-24 23:58:51,969 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:51" (1/1) ... [2023-11-24 23:58:51,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:51" (1/1) ... [2023-11-24 23:58:51,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:51" (1/1) ... [2023-11-24 23:58:51,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:58:51,989 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:58:51,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:58:51,990 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:58:51,991 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:51" (1/1) ... [2023-11-24 23:58:52,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:58:52,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:58:52,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:58:52,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:58:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:58:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:58:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:58:52,083 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:58:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:58:52,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:58:52,176 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:58:52,179 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:58:56,192 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:58:56,292 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:58:56,292 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:58:56,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:58:56 BoogieIcfgContainer [2023-11-24 23:58:56,294 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:58:56,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:58:56,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:58:56,301 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:58:56,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:58:51" (1/3) ... [2023-11-24 23:58:56,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1836ab96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:58:56, skipping insertion in model container [2023-11-24 23:58:56,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:51" (2/3) ... [2023-11-24 23:58:56,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1836ab96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:58:56, skipping insertion in model container [2023-11-24 23:58:56,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:58:56" (3/3) ... [2023-11-24 23:58:56,306 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-6.i [2023-11-24 23:58:56,327 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:58:56,327 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:58:56,392 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:58:56,398 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;@709be14b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:58:56,399 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:58:56,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-24 23:58:56,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-24 23:58:56,419 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:58:56,420 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:58:56,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:58:56,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:58:56,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1272058833, now seen corresponding path program 1 times [2023-11-24 23:58:56,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:58:56,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525149514] [2023-11-24 23:58:56,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:58:56,450 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 23:58:56,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:58:56,456 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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 23:58:56,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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 23:58:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:58:56,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:58:56,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:58:57,014 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-11-24 23:58:57,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:58:57,016 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:58:57,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525149514] [2023-11-24 23:58:57,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525149514] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:58:57,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:58:57,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:58:57,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739595817] [2023-11-24 23:58:57,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:58:57,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:58:57,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:58:57,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:58:57,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:58:57,060 INFO L87 Difference]: Start difference. First operand has 50 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-24 23:58:58,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:58:58,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:58:58,250 INFO L93 Difference]: Finished difference Result 97 states and 171 transitions. [2023-11-24 23:58:58,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:58:58,274 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 116 [2023-11-24 23:58:58,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:58:58,282 INFO L225 Difference]: With dead ends: 97 [2023-11-24 23:58:58,282 INFO L226 Difference]: Without dead ends: 48 [2023-11-24 23:58:58,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 115 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 23:58:58,291 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:58:58,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-24 23:58:58,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-24 23:58:58,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-24 23:58:58,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-24 23:58:58,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 72 transitions. [2023-11-24 23:58:58,347 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 72 transitions. Word has length 116 [2023-11-24 23:58:58,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:58:58,348 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 72 transitions. [2023-11-24 23:58:58,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-24 23:58:58,349 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 72 transitions. [2023-11-24 23:58:58,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-24 23:58:58,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:58:58,353 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:58:58,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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)] Ended with exit code 0 [2023-11-24 23:58:58,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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 23:58:58,564 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:58:58,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:58:58,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1051369125, now seen corresponding path program 1 times [2023-11-24 23:58:58,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:58:58,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020028600] [2023-11-24 23:58:58,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:58:58,574 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 23:58:58,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:58:58,576 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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 23:58:58,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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 23:58:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:58:58,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:58:59,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:58:59,072 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-24 23:58:59,073 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:58:59,073 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:58:59,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020028600] [2023-11-24 23:58:59,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020028600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:58:59,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:58:59,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:58:59,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739425205] [2023-11-24 23:58:59,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:58:59,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:58:59,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:58:59,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:58:59,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:58:59,078 INFO L87 Difference]: Start difference. First operand 48 states and 72 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-24 23:59:00,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:59:01,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:59:01,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:01,475 INFO L93 Difference]: Finished difference Result 128 states and 190 transitions. [2023-11-24 23:59:01,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:59:01,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 116 [2023-11-24 23:59:01,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:01,479 INFO L225 Difference]: With dead ends: 128 [2023-11-24 23:59:01,480 INFO L226 Difference]: Without dead ends: 81 [2023-11-24 23:59:01,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:59:01,483 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 45 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:01,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 162 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-24 23:59:01,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-24 23:59:01,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2023-11-24 23:59:01,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 46 states have internal predecessors, (56), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-24 23:59:01,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 116 transitions. [2023-11-24 23:59:01,508 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 116 transitions. Word has length 116 [2023-11-24 23:59:01,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:01,509 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 116 transitions. [2023-11-24 23:59:01,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-24 23:59:01,510 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 116 transitions. [2023-11-24 23:59:01,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-24 23:59:01,513 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:01,513 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:01,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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 23:59:01,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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 23:59:01,722 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:59:01,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:01,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1468590809, now seen corresponding path program 1 times [2023-11-24 23:59:01,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:01,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284802211] [2023-11-24 23:59:01,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:01,734 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 23:59:01,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:01,736 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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 23:59:01,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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)] Waiting until timeout for monitored process [2023-11-24 23:59:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:02,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:59:02,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:02,611 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-24 23:59:02,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:59:02,612 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:02,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284802211] [2023-11-24 23:59:02,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284802211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:02,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:02,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:59:02,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25495708] [2023-11-24 23:59:02,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:02,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:59:02,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:59:02,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:59:02,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:59:02,616 INFO L87 Difference]: Start difference. First operand 78 states and 116 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-24 23:59:04,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:59:04,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:04,860 INFO L93 Difference]: Finished difference Result 155 states and 231 transitions. [2023-11-24 23:59:04,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:59:04,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 116 [2023-11-24 23:59:04,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:04,893 INFO L225 Difference]: With dead ends: 155 [2023-11-24 23:59:04,893 INFO L226 Difference]: Without dead ends: 78 [2023-11-24 23:59:04,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:04,896 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 47 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:04,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 67 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-24 23:59:04,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-24 23:59:04,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-24 23:59:04,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 45 states have (on average 1.2) internal successors, (54), 46 states have internal predecessors, (54), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-24 23:59:04,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2023-11-24 23:59:04,934 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 116 [2023-11-24 23:59:04,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:04,935 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2023-11-24 23:59:04,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-24 23:59:04,936 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2023-11-24 23:59:04,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-24 23:59:04,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:04,940 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:04,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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)] Forceful destruction successful, exit code 0 [2023-11-24 23:59:05,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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 23:59:05,149 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:59:05,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:05,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1411332507, now seen corresponding path program 1 times [2023-11-24 23:59:05,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:05,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771502812] [2023-11-24 23:59:05,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:05,153 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 23:59:05,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:05,154 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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 23:59:05,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285229ab-b569-4868-84df-0fe82693cad4/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 23:59:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:05,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 23:59:05,614 INFO L285 TraceCheckSpWp]: Computing forward predicates...