./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-63.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_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-63.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh --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 577634e4ca5e5062d04a888d1f269694da9d1fc5e92895960c37cfcca177a593 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 08:34:21,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 08:34:21,234 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 08:34:21,238 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 08:34:21,239 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 08:34:21,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 08:34:21,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 08:34:21,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 08:34:21,277 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 08:34:21,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 08:34:21,278 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 08:34:21,279 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 08:34:21,279 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 08:34:21,280 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 08:34:21,280 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 08:34:21,281 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 08:34:21,282 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 08:34:21,282 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 08:34:21,283 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 08:34:21,283 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 08:34:21,284 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 08:34:21,285 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 08:34:21,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 08:34:21,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 08:34:21,286 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 08:34:21,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 08:34:21,287 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 08:34:21,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 08:34:21,288 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 08:34:21,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 08:34:21,289 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 08:34:21,289 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 08:34:21,289 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 08:34:21,290 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 08:34:21,290 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 08:34:21,290 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 08:34:21,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 08:34:21,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:34:21,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 08:34:21,291 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 08:34:21,291 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 08:34:21,292 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 08:34:21,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 08:34:21,292 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 08:34:21,292 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 08:34:21,293 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 08:34:21,293 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 08:34:21,293 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_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 577634e4ca5e5062d04a888d1f269694da9d1fc5e92895960c37cfcca177a593 [2023-12-02 08:34:21,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 08:34:21,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 08:34:21,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 08:34:21,585 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 08:34:21,585 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 08:34:21,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-63.i [2023-12-02 08:34:24,353 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 08:34:24,538 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 08:34:24,539 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-63.i [2023-12-02 08:34:24,549 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/data/9e9351b3b/a5ac7d037fc14a69b1cfe15ca2a257a1/FLAG8e609782b [2023-12-02 08:34:24,562 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/data/9e9351b3b/a5ac7d037fc14a69b1cfe15ca2a257a1 [2023-12-02 08:34:24,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 08:34:24,565 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 08:34:24,566 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 08:34:24,566 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 08:34:24,571 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 08:34:24,572 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:34:24" (1/1) ... [2023-12-02 08:34:24,573 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae567df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:24, skipping insertion in model container [2023-12-02 08:34:24,573 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:34:24" (1/1) ... [2023-12-02 08:34:24,610 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 08:34:24,734 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_9f62dcf0-de38-4533-a564-ecf293770bd2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-63.i[916,929] [2023-12-02 08:34:24,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:34:24,817 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 08:34:24,827 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_9f62dcf0-de38-4533-a564-ecf293770bd2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-63.i[916,929] [2023-12-02 08:34:24,872 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:34:24,888 INFO L206 MainTranslator]: Completed translation [2023-12-02 08:34:24,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:24 WrapperNode [2023-12-02 08:34:24,889 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 08:34:24,889 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 08:34:24,890 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 08:34:24,890 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 08:34:24,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:24" (1/1) ... [2023-12-02 08:34:24,910 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:24" (1/1) ... [2023-12-02 08:34:24,961 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 213 [2023-12-02 08:34:24,961 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 08:34:24,962 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 08:34:24,962 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 08:34:24,962 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 08:34:24,969 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:24" (1/1) ... [2023-12-02 08:34:24,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:24" (1/1) ... [2023-12-02 08:34:24,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:24" (1/1) ... [2023-12-02 08:34:24,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:24" (1/1) ... [2023-12-02 08:34:24,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:24" (1/1) ... [2023-12-02 08:34:25,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:24" (1/1) ... [2023-12-02 08:34:25,008 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:24" (1/1) ... [2023-12-02 08:34:25,013 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:24" (1/1) ... [2023-12-02 08:34:25,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 08:34:25,023 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 08:34:25,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 08:34:25,024 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 08:34:25,025 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:24" (1/1) ... [2023-12-02 08:34:25,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:34:25,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:34:25,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 08:34:25,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 08:34:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 08:34:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 08:34:25,091 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 08:34:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 08:34:25,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 08:34:25,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 08:34:25,182 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 08:34:25,184 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 08:34:25,650 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 08:34:25,931 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 08:34:25,932 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 08:34:25,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:34:25 BoogieIcfgContainer [2023-12-02 08:34:25,934 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 08:34:25,936 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 08:34:25,936 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 08:34:25,940 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 08:34:25,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:34:24" (1/3) ... [2023-12-02 08:34:25,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9584c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:34:25, skipping insertion in model container [2023-12-02 08:34:25,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:24" (2/3) ... [2023-12-02 08:34:25,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9584c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:34:25, skipping insertion in model container [2023-12-02 08:34:25,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:34:25" (3/3) ... [2023-12-02 08:34:25,944 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-63.i [2023-12-02 08:34:25,966 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 08:34:25,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 08:34:26,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 08:34:26,033 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;@38fb0586, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 08:34:26,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 08:34:26,039 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 08:34:26,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 08:34:26,052 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:34:26,052 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:34:26,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:34:26,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:34:26,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1619036509, now seen corresponding path program 1 times [2023-12-02 08:34:26,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:34:26,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065583958] [2023-12-02 08:34:26,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:26,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:34:26,258 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 08:34:26,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [188530004] [2023-12-02 08:34:26,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:26,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:34:26,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:34:26,260 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:34:26,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 08:34:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 08:34:26,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 08:34:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 08:34:26,792 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 08:34:26,794 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 08:34:26,796 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 08:34:26,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 08:34:26,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 08:34:27,002 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 08:34:27,006 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 08:34:27,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:34:27 BoogieIcfgContainer [2023-12-02 08:34:27,098 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 08:34:27,099 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 08:34:27,099 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 08:34:27,099 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 08:34:27,100 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:34:25" (3/4) ... [2023-12-02 08:34:27,102 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 08:34:27,103 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 08:34:27,104 INFO L158 Benchmark]: Toolchain (without parser) took 2538.85ms. Allocated memory is still 157.3MB. Free memory was 122.8MB in the beginning and 82.3MB in the end (delta: 40.5MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2023-12-02 08:34:27,105 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 08:34:27,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.50ms. Allocated memory is still 157.3MB. Free memory was 122.8MB in the beginning and 106.8MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 08:34:27,106 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.69ms. Allocated memory is still 157.3MB. Free memory was 106.8MB in the beginning and 99.9MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 08:34:27,107 INFO L158 Benchmark]: Boogie Preprocessor took 60.81ms. Allocated memory is still 157.3MB. Free memory was 99.9MB in the beginning and 97.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 08:34:27,107 INFO L158 Benchmark]: RCFGBuilder took 910.49ms. Allocated memory is still 157.3MB. Free memory was 97.1MB in the beginning and 56.4MB in the end (delta: 40.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-12-02 08:34:27,108 INFO L158 Benchmark]: TraceAbstraction took 1162.13ms. Allocated memory is still 157.3MB. Free memory was 55.4MB in the beginning and 83.4MB in the end (delta: -28.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 08:34:27,108 INFO L158 Benchmark]: Witness Printer took 4.38ms. Allocated memory is still 157.3MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 08:34:27,111 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.50ms. Allocated memory is still 157.3MB. Free memory was 122.8MB in the beginning and 106.8MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.69ms. Allocated memory is still 157.3MB. Free memory was 106.8MB in the beginning and 99.9MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.81ms. Allocated memory is still 157.3MB. Free memory was 99.9MB in the beginning and 97.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 910.49ms. Allocated memory is still 157.3MB. Free memory was 97.1MB in the beginning and 56.4MB in the end (delta: 40.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1162.13ms. Allocated memory is still 157.3MB. Free memory was 55.4MB in the beginning and 83.4MB in the end (delta: -28.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.38ms. Allocated memory is still 157.3MB. Free memory is still 82.3MB. 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 186, overapproximation of bitwiseAnd at line 56, overapproximation of someBinaryArithmeticDOUBLEoperation at line 134. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 4; [L23] unsigned char var_1_5 = 200; [L24] unsigned char var_1_6 = 4; [L25] unsigned char var_1_7 = 100; [L26] signed long int var_1_8 = -256; [L27] unsigned char var_1_9 = 1; [L28] unsigned char var_1_10 = 1; [L29] unsigned char var_1_11 = 0; [L30] unsigned char var_1_12 = 1; [L31] unsigned char var_1_13 = 200; [L32] signed char var_1_14 = 16; [L33] unsigned char var_1_15 = 0; [L34] unsigned char var_1_17 = 1; [L35] signed char var_1_18 = -25; [L36] signed short int var_1_19 = -10; [L37] unsigned char var_1_20 = 2; [L38] unsigned char var_1_22 = 32; [L39] unsigned char var_1_23 = 4; [L40] double var_1_24 = 128.6; [L41] double var_1_25 = 0.6; [L42] double var_1_26 = 99.375; [L43] signed short int var_1_27 = 1; [L44] unsigned long int var_1_29 = 128; [L45] unsigned char last_1_var_1_9 = 1; [L46] unsigned char last_1_var_1_12 = 1; [L47] unsigned char last_1_var_1_13 = 200; [L48] unsigned char last_1_var_1_15 = 0; [L49] signed char last_1_var_1_18 = -25; [L50] signed short int last_1_var_1_19 = -10; [L51] unsigned char last_1_var_1_20 = 2; [L52] signed short int last_1_var_1_27 = 1; [L190] isInitial = 1 [L191] FCALL initially() [L192] COND TRUE 1 [L193] CALL updateLastVariables() [L176] last_1_var_1_9 = var_1_9 [L177] last_1_var_1_12 = var_1_12 [L178] last_1_var_1_13 = var_1_13 [L179] last_1_var_1_15 = var_1_15 [L180] last_1_var_1_18 = var_1_18 [L181] last_1_var_1_19 = var_1_19 [L182] last_1_var_1_20 = var_1_20 [L183] last_1_var_1_27 = var_1_27 [L193] RET updateLastVariables() [L194] CALL updateVariables() [L143] var_1_5 = __VERIFIER_nondet_uchar() [L144] CALL assume_abort_if_not(var_1_5 >= 190) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=4, var_1_7=100, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not(var_1_5 >= 190) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=4, var_1_7=100, var_1_8=-256, var_1_9=1] [L145] CALL assume_abort_if_not(var_1_5 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=4, var_1_7=100, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_5 <= 254) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=4, var_1_7=100, var_1_8=-256, var_1_9=1] [L146] var_1_6 = __VERIFIER_nondet_uchar() [L147] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_7=100, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_7=100, var_1_8=-256, var_1_9=1] [L148] CALL assume_abort_if_not(var_1_6 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=100, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_6 <= 63) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=100, var_1_8=-256, var_1_9=1] [L149] var_1_7 = __VERIFIER_nondet_uchar() [L150] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L150] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_8=-256, var_1_9=1] [L151] CALL assume_abort_if_not(var_1_7 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_7 <= 127) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L152] var_1_10 = __VERIFIER_nondet_uchar() [L153] CALL assume_abort_if_not(var_1_10 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not(var_1_10 >= 1) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L154] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L155] var_1_11 = __VERIFIER_nondet_uchar() [L156] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L157] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=16, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L158] var_1_14 = __VERIFIER_nondet_char() [L159] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L160] CALL assume_abort_if_not(var_1_14 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L160] RET assume_abort_if_not(var_1_14 <= 63) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L161] var_1_17 = __VERIFIER_nondet_uchar() [L162] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L163] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L163] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=32, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L164] var_1_22 = __VERIFIER_nondet_uchar() [L165] CALL assume_abort_if_not(var_1_22 >= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=33, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L165] RET assume_abort_if_not(var_1_22 >= 32) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=33, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L166] CALL assume_abort_if_not(var_1_22 <= 64) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=33, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not(var_1_22 <= 64) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=33, var_1_23=4, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L167] var_1_23 = __VERIFIER_nondet_uchar() [L168] CALL assume_abort_if_not(var_1_23 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=33, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not(var_1_23 >= 0) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=33, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L169] CALL assume_abort_if_not(var_1_23 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=33, var_1_23=32, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L169] RET assume_abort_if_not(var_1_23 <= 32) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=33, var_1_23=32, var_1_24=643/5, var_1_25=3/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L170] var_1_25 = __VERIFIER_nondet_double() [L171] CALL assume_abort_if_not((var_1_25 >= -461168.6018427382800e+13F && var_1_25 <= -1.0e-20F) || (var_1_25 <= 4611686.018427382800e+12F && var_1_25 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=33, var_1_23=32, var_1_24=643/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L171] RET assume_abort_if_not((var_1_25 >= -461168.6018427382800e+13F && var_1_25 <= -1.0e-20F) || (var_1_25 <= 4611686.018427382800e+12F && var_1_25 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=33, var_1_23=32, var_1_24=643/5, var_1_26=795/8, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L172] var_1_26 = __VERIFIER_nondet_double() [L173] CALL assume_abort_if_not((var_1_26 >= -461168.6018427382800e+13F && var_1_26 <= -1.0e-20F) || (var_1_26 <= 4611686.018427382800e+12F && var_1_26 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=33, var_1_23=32, var_1_24=643/5, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L20] COND FALSE !(!cond) [L173] RET assume_abort_if_not((var_1_26 >= -461168.6018427382800e+13F && var_1_26 <= -1.0e-20F) || (var_1_26 <= 4611686.018427382800e+12F && var_1_26 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=200, var_1_14=33, var_1_15=0, var_1_17=1, var_1_18=-25, var_1_19=-10, var_1_1=4, var_1_20=2, var_1_22=33, var_1_23=32, var_1_24=643/5, var_1_27=1, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=-256, var_1_9=1] [L194] RET updateVariables() [L195] CALL step() [L56] var_1_10 || (var_1_5 < (last_1_var_1_27 & last_1_var_1_27)) [L56] COND TRUE var_1_10 || (var_1_5 < (last_1_var_1_27 & last_1_var_1_27)) [L57] COND FALSE !(last_1_var_1_18 >= (last_1_var_1_27 + (var_1_14 / var_1_5))) [L60] COND FALSE !((~ last_1_var_1_27) > (var_1_7 - ((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))))) [L63] var_1_15 = (! var_1_11) [L73] unsigned char stepLocal_4 = last_1_var_1_13 < var_1_5; [L74] COND TRUE (last_1_var_1_12 > -4) || stepLocal_4 [L75] var_1_19 = last_1_var_1_20 [L77] COND FALSE !(((last_1_var_1_19 / -2) <= last_1_var_1_13) && last_1_var_1_15) [L80] var_1_1 = (var_1_6 + var_1_7) [L82] COND TRUE \read(var_1_15) [L83] var_1_8 = ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7))) [L87] COND FALSE !(\read(var_1_11)) [L90] COND FALSE !(\read(var_1_11)) [L97] COND TRUE var_1_1 <= var_1_5 [L98] var_1_20 = var_1_6 [L101] signed char stepLocal_5 = var_1_14; [L102] COND FALSE !(var_1_22 > stepLocal_5) [L105] var_1_27 = (((((var_1_5) > ((var_1_6 + var_1_12))) ? (var_1_5) : ((var_1_6 + var_1_12)))) - var_1_14) [L107] unsigned char stepLocal_3 = var_1_1; [L108] signed long int stepLocal_2 = var_1_5 ^ 1; [L109] COND TRUE stepLocal_2 >= (~ -8) [L110] var_1_18 = var_1_6 [L116] unsigned char stepLocal_0 = var_1_15; [L117] COND TRUE (var_1_18 < var_1_1) && stepLocal_0 [L118] var_1_9 = ((var_1_18 > var_1_1) || var_1_10) [L122] signed short int stepLocal_1 = var_1_27; [L123] COND TRUE \read(var_1_10) [L124] var_1_13 = var_1_7 [L132] COND TRUE var_1_7 <= var_1_22 [L133] COND TRUE \read(var_1_9) [L134] var_1_24 = (var_1_25 + var_1_26) [L137] signed long int stepLocal_6 = (var_1_18 / var_1_22) / var_1_5; [L138] COND FALSE !(var_1_13 <= stepLocal_6) [L195] RET step() [L196] CALL, EXPR property() [L186] EXPR ((((((((last_1_var_1_19 / -2) <= last_1_var_1_13) && last_1_var_1_15) ? (var_1_1 == ((unsigned char) ((var_1_5 - var_1_6) - var_1_7))) : (var_1_1 == ((unsigned char) (var_1_6 + var_1_7)))) && (var_1_15 ? (var_1_8 == ((signed long int) ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7))))) : (var_1_8 == ((signed long int) (25 + var_1_6))))) && (((var_1_18 < var_1_1) && var_1_15) ? (var_1_9 == ((unsigned char) ((var_1_18 > var_1_1) || var_1_10))) : (var_1_9 == ((unsigned char) (! var_1_11))))) && (var_1_11 ? (var_1_12 == ((unsigned char) var_1_6)) : 1)) && (var_1_10 ? (var_1_13 == ((unsigned char) var_1_7)) : ((((var_1_6 + var_1_14) - var_1_7) >= var_1_27) ? (var_1_13 == ((unsigned char) var_1_14)) : (var_1_13 == ((unsigned char) var_1_14))))) && ((var_1_10 || (var_1_5 < (last_1_var_1_27 & last_1_var_1_27))) ? ((last_1_var_1_18 >= (last_1_var_1_27 + (var_1_14 / var_1_5))) ? (var_1_15 == ((unsigned char) (! var_1_11))) : (((~ last_1_var_1_27) > (var_1_7 - ((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))))) ? (var_1_15 == ((unsigned char) (! (! (last_1_var_1_9 && var_1_11))))) : (var_1_15 == ((unsigned char) (! var_1_11))))) : (var_1_11 ? (var_1_15 == ((unsigned char) var_1_17)) : (var_1_15 == ((unsigned char) var_1_17)))) [L186] EXPR var_1_10 || (var_1_5 < (last_1_var_1_27 & last_1_var_1_27)) [L186] EXPR ((((((((last_1_var_1_19 / -2) <= last_1_var_1_13) && last_1_var_1_15) ? (var_1_1 == ((unsigned char) ((var_1_5 - var_1_6) - var_1_7))) : (var_1_1 == ((unsigned char) (var_1_6 + var_1_7)))) && (var_1_15 ? (var_1_8 == ((signed long int) ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7))))) : (var_1_8 == ((signed long int) (25 + var_1_6))))) && (((var_1_18 < var_1_1) && var_1_15) ? (var_1_9 == ((unsigned char) ((var_1_18 > var_1_1) || var_1_10))) : (var_1_9 == ((unsigned char) (! var_1_11))))) && (var_1_11 ? (var_1_12 == ((unsigned char) var_1_6)) : 1)) && (var_1_10 ? (var_1_13 == ((unsigned char) var_1_7)) : ((((var_1_6 + var_1_14) - var_1_7) >= var_1_27) ? (var_1_13 == ((unsigned char) var_1_14)) : (var_1_13 == ((unsigned char) var_1_14))))) && ((var_1_10 || (var_1_5 < (last_1_var_1_27 & last_1_var_1_27))) ? ((last_1_var_1_18 >= (last_1_var_1_27 + (var_1_14 / var_1_5))) ? (var_1_15 == ((unsigned char) (! var_1_11))) : (((~ last_1_var_1_27) > (var_1_7 - ((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))))) ? (var_1_15 == ((unsigned char) (! (! (last_1_var_1_9 && var_1_11))))) : (var_1_15 == ((unsigned char) (! var_1_11))))) : (var_1_11 ? (var_1_15 == ((unsigned char) var_1_17)) : (var_1_15 == ((unsigned char) var_1_17)))) [L186-L187] return ((((((((((((((last_1_var_1_19 / -2) <= last_1_var_1_13) && last_1_var_1_15) ? (var_1_1 == ((unsigned char) ((var_1_5 - var_1_6) - var_1_7))) : (var_1_1 == ((unsigned char) (var_1_6 + var_1_7)))) && (var_1_15 ? (var_1_8 == ((signed long int) ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7))))) : (var_1_8 == ((signed long int) (25 + var_1_6))))) && (((var_1_18 < var_1_1) && var_1_15) ? (var_1_9 == ((unsigned char) ((var_1_18 > var_1_1) || var_1_10))) : (var_1_9 == ((unsigned char) (! var_1_11))))) && (var_1_11 ? (var_1_12 == ((unsigned char) var_1_6)) : 1)) && (var_1_10 ? (var_1_13 == ((unsigned char) var_1_7)) : ((((var_1_6 + var_1_14) - var_1_7) >= var_1_27) ? (var_1_13 == ((unsigned char) var_1_14)) : (var_1_13 == ((unsigned char) var_1_14))))) && ((var_1_10 || (var_1_5 < (last_1_var_1_27 & last_1_var_1_27))) ? ((last_1_var_1_18 >= (last_1_var_1_27 + (var_1_14 / var_1_5))) ? (var_1_15 == ((unsigned char) (! var_1_11))) : (((~ last_1_var_1_27) > (var_1_7 - ((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))))) ? (var_1_15 == ((unsigned char) (! (! (last_1_var_1_9 && var_1_11))))) : (var_1_15 == ((unsigned char) (! var_1_11))))) : (var_1_11 ? (var_1_15 == ((unsigned char) var_1_17)) : (var_1_15 == ((unsigned char) var_1_17))))) && (((var_1_5 ^ 1) >= (~ -8)) ? (var_1_18 == ((signed char) var_1_6)) : ((var_1_1 == var_1_20) ? (var_1_18 == ((signed char) var_1_14)) : 1))) && (((last_1_var_1_12 > -4) || (last_1_var_1_13 < var_1_5)) ? (var_1_19 == ((signed short int) last_1_var_1_20)) : 1)) && (var_1_11 ? (((var_1_19 >= var_1_19) || (var_1_19 >= ((((var_1_5) > (var_1_1)) ? (var_1_5) : (var_1_1))))) ? (var_1_20 == ((unsigned char) (var_1_7 + var_1_6))) : (var_1_20 == ((unsigned char) (var_1_6 + ((var_1_22 - var_1_23) + var_1_14))))) : ((var_1_1 <= var_1_5) ? (var_1_20 == ((unsigned char) var_1_6)) : 1))) && ((var_1_7 <= var_1_22) ? (var_1_9 ? (var_1_24 == ((double) (var_1_25 + var_1_26))) : 1) : 1)) && ((var_1_22 > var_1_14) ? (var_1_27 == ((signed short int) var_1_19)) : (var_1_27 == ((signed short int) (((((var_1_5) > ((var_1_6 + var_1_12))) ? (var_1_5) : ((var_1_6 + var_1_12)))) - var_1_14))))) && ((var_1_13 <= ((var_1_18 / var_1_22) / var_1_5)) ? (var_1_29 == ((unsigned long int) var_1_19)) : 1) ; [L196] RET, EXPR property() [L196] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=24, var_1_14=33, var_1_15=1, var_1_17=1, var_1_18=1, var_1_19=2, var_1_1=25, var_1_20=1, var_1_22=33, var_1_23=32, var_1_24=0, var_1_27=221, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=24, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=1, last_1_var_1_13=200, last_1_var_1_15=0, last_1_var_1_18=-25, last_1_var_1_19=-10, last_1_var_1_20=2, last_1_var_1_27=1, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=24, var_1_14=33, var_1_15=1, var_1_17=1, var_1_18=1, var_1_19=2, var_1_1=25, var_1_20=1, var_1_22=33, var_1_23=32, var_1_24=0, var_1_27=221, var_1_29=128, var_1_5=254, var_1_6=1, var_1_7=24, var_1_8=24, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 20, 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=40occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 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 [2023-12-02 08:34:27,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-63.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh --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 577634e4ca5e5062d04a888d1f269694da9d1fc5e92895960c37cfcca177a593 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 08:34:29,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 08:34:29,230 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 08:34:29,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 08:34:29,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 08:34:29,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 08:34:29,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 08:34:29,268 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 08:34:29,269 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 08:34:29,270 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 08:34:29,271 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 08:34:29,271 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 08:34:29,272 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 08:34:29,272 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 08:34:29,273 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 08:34:29,273 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 08:34:29,275 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 08:34:29,275 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 08:34:29,276 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 08:34:29,276 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 08:34:29,277 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 08:34:29,278 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 08:34:29,278 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 08:34:29,279 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 08:34:29,279 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 08:34:29,280 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 08:34:29,280 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 08:34:29,281 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 08:34:29,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 08:34:29,281 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 08:34:29,282 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 08:34:29,282 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 08:34:29,283 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 08:34:29,283 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 08:34:29,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:34:29,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 08:34:29,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 08:34:29,284 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 08:34:29,284 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 08:34:29,285 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 08:34:29,285 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 08:34:29,285 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 08:34:29,285 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 08:34:29,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 08:34:29,286 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_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 577634e4ca5e5062d04a888d1f269694da9d1fc5e92895960c37cfcca177a593 [2023-12-02 08:34:29,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 08:34:29,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 08:34:29,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 08:34:29,613 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 08:34:29,614 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 08:34:29,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-63.i [2023-12-02 08:34:32,500 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 08:34:32,700 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 08:34:32,701 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-63.i [2023-12-02 08:34:32,712 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/data/a63948092/be83bab91ecb4397989b6e8358886897/FLAG5f07a7ab9 [2023-12-02 08:34:32,729 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/data/a63948092/be83bab91ecb4397989b6e8358886897 [2023-12-02 08:34:32,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 08:34:32,734 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 08:34:32,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 08:34:32,736 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 08:34:32,742 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 08:34:32,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:34:32" (1/1) ... [2023-12-02 08:34:32,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c012e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:32, skipping insertion in model container [2023-12-02 08:34:32,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:34:32" (1/1) ... [2023-12-02 08:34:32,801 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 08:34:32,968 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_9f62dcf0-de38-4533-a564-ecf293770bd2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-63.i[916,929] [2023-12-02 08:34:33,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:34:33,070 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 08:34:33,086 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_9f62dcf0-de38-4533-a564-ecf293770bd2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-63.i[916,929] [2023-12-02 08:34:33,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:34:33,152 INFO L206 MainTranslator]: Completed translation [2023-12-02 08:34:33,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:33 WrapperNode [2023-12-02 08:34:33,152 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 08:34:33,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 08:34:33,154 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 08:34:33,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 08:34:33,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:33" (1/1) ... [2023-12-02 08:34:33,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:33" (1/1) ... [2023-12-02 08:34:33,212 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 178 [2023-12-02 08:34:33,213 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 08:34:33,214 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 08:34:33,214 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 08:34:33,214 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 08:34:33,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:33" (1/1) ... [2023-12-02 08:34:33,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:33" (1/1) ... [2023-12-02 08:34:33,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:33" (1/1) ... [2023-12-02 08:34:33,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:33" (1/1) ... [2023-12-02 08:34:33,249 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:33" (1/1) ... [2023-12-02 08:34:33,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:33" (1/1) ... [2023-12-02 08:34:33,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:33" (1/1) ... [2023-12-02 08:34:33,261 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:33" (1/1) ... [2023-12-02 08:34:33,267 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 08:34:33,268 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 08:34:33,268 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 08:34:33,268 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 08:34:33,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:33" (1/1) ... [2023-12-02 08:34:33,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:34:33,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:34:33,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 08:34:33,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 08:34:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 08:34:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 08:34:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 08:34:33,349 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 08:34:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 08:34:33,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 08:34:33,438 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 08:34:33,440 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 08:34:34,666 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 08:34:34,725 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 08:34:34,725 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 08:34:34,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:34:34 BoogieIcfgContainer [2023-12-02 08:34:34,726 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 08:34:34,729 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 08:34:34,729 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 08:34:34,731 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 08:34:34,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:34:32" (1/3) ... [2023-12-02 08:34:34,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df5d45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:34:34, skipping insertion in model container [2023-12-02 08:34:34,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:33" (2/3) ... [2023-12-02 08:34:34,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df5d45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:34:34, skipping insertion in model container [2023-12-02 08:34:34,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:34:34" (3/3) ... [2023-12-02 08:34:34,734 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-63.i [2023-12-02 08:34:34,749 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 08:34:34,750 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 08:34:34,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 08:34:34,805 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;@4ba1fde2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 08:34:34,805 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 08:34:34,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 48 states have internal predecessors, (72), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 08:34:34,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-02 08:34:34,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:34:34,825 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:34:34,825 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:34:34,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:34:34,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1637524823, now seen corresponding path program 1 times [2023-12-02 08:34:34,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 08:34:34,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647129408] [2023-12-02 08:34:34,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:34,845 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 [2023-12-02 08:34:34,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 08:34:34,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 08:34:34,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 08:34:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:34:35,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 08:34:35,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:34:35,216 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2023-12-02 08:34:35,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 08:34:35,217 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 08:34:35,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647129408] [2023-12-02 08:34:35,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647129408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:34:35,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:34:35,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 08:34:35,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342674484] [2023-12-02 08:34:35,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:34:35,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 08:34:35,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 08:34:35,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 08:34:35,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 08:34:35,257 INFO L87 Difference]: Start difference. First operand has 70 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 48 states have internal predecessors, (72), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 08:34:35,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:34:35,740 INFO L93 Difference]: Finished difference Result 137 states and 242 transitions. [2023-12-02 08:34:35,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 08:34:35,765 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 136 [2023-12-02 08:34:35,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:34:35,773 INFO L225 Difference]: With dead ends: 137 [2023-12-02 08:34:35,773 INFO L226 Difference]: Without dead ends: 68 [2023-12-02 08:34:35,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 08:34:35,781 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 08:34:35,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 08:34:35,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-12-02 08:34:35,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-12-02 08:34:35,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 46 states have internal predecessors, (65), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 08:34:35,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 105 transitions. [2023-12-02 08:34:35,827 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 105 transitions. Word has length 136 [2023-12-02 08:34:35,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:34:35,827 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 105 transitions. [2023-12-02 08:34:35,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 08:34:35,828 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 105 transitions. [2023-12-02 08:34:35,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-02 08:34:35,831 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:34:35,832 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:34:35,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 08:34:36,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 08:34:36,033 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:34:36,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:34:36,034 INFO L85 PathProgramCache]: Analyzing trace with hash 591844717, now seen corresponding path program 1 times [2023-12-02 08:34:36,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 08:34:36,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302686316] [2023-12-02 08:34:36,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:36,035 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 [2023-12-02 08:34:36,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 08:34:36,037 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 08:34:36,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 08:34:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:34:36,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 08:34:36,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:34:38,780 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 382 proven. 81 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 08:34:38,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:34:40,592 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 08:34:40,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302686316] [2023-12-02 08:34:40,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302686316] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:34:40,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [70268070] [2023-12-02 08:34:40,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:40,593 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 08:34:40,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 08:34:40,595 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 08:34:40,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 08:34:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:34:40,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 08:34:40,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:34:41,178 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 08:34:41,179 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 08:34:41,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [70268070] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:34:41,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 08:34:41,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2023-12-02 08:34:41,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499426567] [2023-12-02 08:34:41,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:34:41,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 08:34:41,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 08:34:41,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 08:34:41,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-12-02 08:34:41,184 INFO L87 Difference]: Start difference. First operand 68 states and 105 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 08:34:42,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:34:42,035 INFO L93 Difference]: Finished difference Result 217 states and 330 transitions. [2023-12-02 08:34:42,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 08:34:42,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 136 [2023-12-02 08:34:42,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:34:42,041 INFO L225 Difference]: With dead ends: 217 [2023-12-02 08:34:42,041 INFO L226 Difference]: Without dead ends: 150 [2023-12-02 08:34:42,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-12-02 08:34:42,045 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 152 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 08:34:42,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 239 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 08:34:42,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-12-02 08:34:42,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 111. [2023-12-02 08:34:42,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 80 states have (on average 1.425) internal successors, (114), 81 states have internal predecessors, (114), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-02 08:34:42,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 170 transitions. [2023-12-02 08:34:42,071 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 170 transitions. Word has length 136 [2023-12-02 08:34:42,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:34:42,072 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 170 transitions. [2023-12-02 08:34:42,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 08:34:42,073 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 170 transitions. [2023-12-02 08:34:42,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-02 08:34:42,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:34:42,076 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:34:42,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 08:34:42,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 08:34:42,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 08:34:42,481 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:34:42,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:34:42,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1610296721, now seen corresponding path program 1 times [2023-12-02 08:34:42,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 08:34:42,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750341332] [2023-12-02 08:34:42,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:42,483 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 [2023-12-02 08:34:42,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 08:34:42,484 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 08:34:42,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 08:34:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:34:42,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 08:34:42,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:34:44,501 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 382 proven. 81 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 08:34:44,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:34:46,256 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 08:34:46,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750341332] [2023-12-02 08:34:46,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [750341332] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:34:46,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [811318372] [2023-12-02 08:34:46,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:46,257 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 08:34:46,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 08:34:46,258 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 08:34:46,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 08:34:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:34:47,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 08:34:47,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:34:48,552 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 382 proven. 81 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 08:34:48,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:34:49,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [811318372] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:34:49,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025848924] [2023-12-02 08:34:49,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:49,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:34:49,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:34:49,626 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:34:49,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 08:34:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:34:49,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 08:34:49,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:34:51,221 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 382 proven. 81 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 08:34:51,221 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:34:52,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025848924] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:34:52,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:34:52,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2023-12-02 08:34:52,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626274490] [2023-12-02 08:34:52,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 08:34:52,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 08:34:52,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 08:34:52,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 08:34:52,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-12-02 08:34:52,332 INFO L87 Difference]: Start difference. First operand 111 states and 170 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-02 08:34:54,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:34:54,808 INFO L93 Difference]: Finished difference Result 329 states and 497 transitions. [2023-12-02 08:34:54,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 08:34:54,832 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 136 [2023-12-02 08:34:54,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:34:54,837 INFO L225 Difference]: With dead ends: 329 [2023-12-02 08:34:54,838 INFO L226 Difference]: Without dead ends: 219 [2023-12-02 08:34:54,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 641 GetRequests, 620 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=173, Invalid=333, Unknown=0, NotChecked=0, Total=506 [2023-12-02 08:34:54,842 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 89 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-02 08:34:54,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 527 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-02 08:34:54,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-02 08:34:54,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 157. [2023-12-02 08:34:54,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 104 states have internal predecessors, (138), 48 states have call successors, (48), 5 states have call predecessors, (48), 5 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-02 08:34:54,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 234 transitions. [2023-12-02 08:34:54,877 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 234 transitions. Word has length 136 [2023-12-02 08:34:54,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:34:54,878 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 234 transitions. [2023-12-02 08:34:54,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-02 08:34:54,879 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 234 transitions. [2023-12-02 08:34:54,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-02 08:34:54,882 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:34:54,882 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:34:54,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-02 08:34:55,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 08:34:55,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 08:34:55,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:34:55,483 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:34:55,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:34:55,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1131014195, now seen corresponding path program 1 times [2023-12-02 08:34:55,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 08:34:55,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500097766] [2023-12-02 08:34:55,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:55,485 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 [2023-12-02 08:34:55,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 08:34:55,486 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 08:34:55,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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 (8)] Waiting until timeout for monitored process [2023-12-02 08:34:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:34:55,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 08:34:55,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:34:55,918 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 343 proven. 39 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-02 08:34:55,918 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:34:56,132 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 18 proven. 39 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-02 08:34:56,132 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 08:34:56,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500097766] [2023-12-02 08:34:56,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500097766] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:34:56,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1005580104] [2023-12-02 08:34:56,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:56,133 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 08:34:56,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 08:34:56,134 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 08:34:56,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 08:34:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:34:56,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 08:34:56,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:34:56,455 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 08:34:56,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 08:34:56,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1005580104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:34:56,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 08:34:56,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 8 [2023-12-02 08:34:56,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205699164] [2023-12-02 08:34:56,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:34:56,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:34:56,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 08:34:56,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:34:56,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-02 08:34:56,459 INFO L87 Difference]: Start difference. First operand 157 states and 234 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 08:34:56,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:34:56,865 INFO L93 Difference]: Finished difference Result 328 states and 491 transitions. [2023-12-02 08:34:56,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:34:56,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 136 [2023-12-02 08:34:56,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:34:56,870 INFO L225 Difference]: With dead ends: 328 [2023-12-02 08:34:56,870 INFO L226 Difference]: Without dead ends: 218 [2023-12-02 08:34:56,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 398 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-02 08:34:56,872 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 45 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 08:34:56,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 219 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 08:34:56,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-02 08:34:56,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 214. [2023-12-02 08:34:56,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 146 states have (on average 1.356164383561644) internal successors, (198), 149 states have internal predecessors, (198), 60 states have call successors, (60), 7 states have call predecessors, (60), 7 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-02 08:34:56,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 318 transitions. [2023-12-02 08:34:56,915 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 318 transitions. Word has length 136 [2023-12-02 08:34:56,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:34:56,916 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 318 transitions. [2023-12-02 08:34:56,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 08:34:56,916 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 318 transitions. [2023-12-02 08:34:56,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-02 08:34:56,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:34:56,919 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:34:56,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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 (8)] Ended with exit code 0 [2023-12-02 08:34:57,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 08:34:57,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 08:34:57,329 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:34:57,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:34:57,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1901627613, now seen corresponding path program 1 times [2023-12-02 08:34:57,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 08:34:57,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716905723] [2023-12-02 08:34:57,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:57,331 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 [2023-12-02 08:34:57,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 08:34:57,332 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 08:34:57,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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 (10)] Waiting until timeout for monitored process [2023-12-02 08:34:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:34:57,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 08:34:57,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:34:57,794 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 397 proven. 30 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-12-02 08:34:57,795 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:34:58,004 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 27 proven. 30 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-02 08:34:58,004 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 08:34:58,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716905723] [2023-12-02 08:34:58,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716905723] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:34:58,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1992189454] [2023-12-02 08:34:58,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:58,005 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 08:34:58,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 08:34:58,006 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 08:34:58,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 08:34:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:34:58,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 08:34:58,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:34:59,023 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 397 proven. 30 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-12-02 08:34:59,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:34:59,204 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 27 proven. 30 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-02 08:34:59,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1992189454] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:34:59,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669172062] [2023-12-02 08:34:59,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:59,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:34:59,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:34:59,206 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:34:59,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 08:34:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:34:59,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 08:34:59,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:34:59,588 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 397 proven. 30 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-12-02 08:34:59,588 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:34:59,752 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 27 proven. 30 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-02 08:34:59,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669172062] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:34:59,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 08:34:59,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5, 5, 5, 5] total 8 [2023-12-02 08:34:59,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106392729] [2023-12-02 08:34:59,753 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 08:34:59,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 08:34:59,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 08:34:59,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 08:34:59,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-02 08:34:59,755 INFO L87 Difference]: Start difference. First operand 214 states and 318 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-02 08:35:01,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:35:01,040 INFO L93 Difference]: Finished difference Result 536 states and 782 transitions. [2023-12-02 08:35:01,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-02 08:35:01,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 137 [2023-12-02 08:35:01,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:35:01,048 INFO L225 Difference]: With dead ends: 536 [2023-12-02 08:35:01,048 INFO L226 Difference]: Without dead ends: 369 [2023-12-02 08:35:01,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 808 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-12-02 08:35:01,050 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 206 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-02 08:35:01,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 289 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-02 08:35:01,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2023-12-02 08:35:01,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 336. [2023-12-02 08:35:01,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 227 states have (on average 1.303964757709251) internal successors, (296), 233 states have internal predecessors, (296), 94 states have call successors, (94), 14 states have call predecessors, (94), 14 states have return successors, (94), 88 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-02 08:35:01,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 484 transitions. [2023-12-02 08:35:01,100 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 484 transitions. Word has length 137 [2023-12-02 08:35:01,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:35:01,101 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 484 transitions. [2023-12-02 08:35:01,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-02 08:35:01,102 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 484 transitions. [2023-12-02 08:35:01,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-02 08:35:01,104 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:35:01,104 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:35:01,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 08:35:01,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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 (10)] Ended with exit code 0 [2023-12-02 08:35:01,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 08:35:01,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 08:35:01,721 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:35:01,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:35:01,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1802946461, now seen corresponding path program 1 times [2023-12-02 08:35:01,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 08:35:01,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950725304] [2023-12-02 08:35:01,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:35:01,722 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 [2023-12-02 08:35:01,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 08:35:01,723 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 08:35:01,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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 (13)] Waiting until timeout for monitored process [2023-12-02 08:35:01,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:35:01,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 08:35:01,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:35:02,187 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 397 proven. 30 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-12-02 08:35:02,187 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:35:02,432 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 27 proven. 30 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-02 08:35:02,432 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 08:35:02,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950725304] [2023-12-02 08:35:02,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950725304] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:35:02,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1522439505] [2023-12-02 08:35:02,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:35:02,433 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 08:35:02,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 08:35:02,434 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 08:35:02,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-02 08:35:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:35:02,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:35:02,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:35:02,731 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 08:35:02,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 08:35:02,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1522439505] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:35:02,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 08:35:02,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 7] total 9 [2023-12-02 08:35:02,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258125044] [2023-12-02 08:35:02,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:35:02,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 08:35:02,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 08:35:02,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 08:35:02,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 08:35:02,734 INFO L87 Difference]: Start difference. First operand 336 states and 484 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 08:35:03,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:35:03,306 INFO L93 Difference]: Finished difference Result 628 states and 909 transitions. [2023-12-02 08:35:03,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 08:35:03,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 137 [2023-12-02 08:35:03,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:35:03,313 INFO L225 Difference]: With dead ends: 628 [2023-12-02 08:35:03,313 INFO L226 Difference]: Without dead ends: 343 [2023-12-02 08:35:03,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 400 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-02 08:35:03,315 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 95 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 08:35:03,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 313 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 08:35:03,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-12-02 08:35:03,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 336. [2023-12-02 08:35:03,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 227 states have (on average 1.2907488986784141) internal successors, (293), 233 states have internal predecessors, (293), 94 states have call successors, (94), 14 states have call predecessors, (94), 14 states have return successors, (94), 88 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-02 08:35:03,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 481 transitions. [2023-12-02 08:35:03,359 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 481 transitions. Word has length 137 [2023-12-02 08:35:03,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:35:03,360 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 481 transitions. [2023-12-02 08:35:03,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 08:35:03,360 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 481 transitions. [2023-12-02 08:35:03,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-02 08:35:03,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:35:03,363 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:35:03,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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 (13)] Ended with exit code 0 [2023-12-02 08:35:03,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-02 08:35:03,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 08:35:03,763 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:35:03,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:35:03,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1122888091, now seen corresponding path program 1 times [2023-12-02 08:35:03,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 08:35:03,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346192394] [2023-12-02 08:35:03,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:35:03,765 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 [2023-12-02 08:35:03,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 08:35:03,766 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 08:35:03,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f62dcf0-de38-4533-a564-ecf293770bd2/bin/utaipan-verify-nQ1chXbOIh/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 (15)] Waiting until timeout for monitored process [2023-12-02 08:35:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:35:04,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-02 08:35:04,017 INFO L285 TraceCheckSpWp]: Computing forward predicates...