./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-85.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-85.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 cc4a7aa458277533675aacdf7af943b27ec70a7d49ed5d9ca73af9a35907fc2d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:47:32,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:47:32,627 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:47:32,632 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:47:32,633 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:47:32,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:47:32,658 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:47:32,659 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:47:32,659 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:47:32,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:47:32,660 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:47:32,661 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:47:32,662 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:47:32,662 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:47:32,663 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:47:32,663 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:47:32,664 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:47:32,664 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:47:32,665 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:47:32,665 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:47:32,666 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:47:32,667 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:47:32,668 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:47:32,668 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:47:32,669 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:47:32,669 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:47:32,669 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:47:32,670 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:47:32,670 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:47:32,671 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:47:32,671 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:47:32,672 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:47:32,672 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:47:32,672 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:47:32,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:47:32,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:47:32,673 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:47:32,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:47:32,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:47:32,673 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:47:32,674 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:47:32,674 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:47:32,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:47:32,674 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:47:32,674 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:47:32,675 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:47:32,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:47:32,675 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_47043a67-7ce6-4c9c-b84f-b309050b74d8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc4a7aa458277533675aacdf7af943b27ec70a7d49ed5d9ca73af9a35907fc2d [2023-12-02 13:47:32,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:47:32,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:47:32,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:47:32,918 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:47:32,919 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:47:32,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-85.i [2023-12-02 13:47:35,819 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:47:36,005 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:47:36,006 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-85.i [2023-12-02 13:47:36,016 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/data/f2b7e22af/350c5ef05e304f52aac029ba054a3b3f/FLAG623d29860 [2023-12-02 13:47:36,029 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/data/f2b7e22af/350c5ef05e304f52aac029ba054a3b3f [2023-12-02 13:47:36,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:47:36,033 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:47:36,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:47:36,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:47:36,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:47:36,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:47:36" (1/1) ... [2023-12-02 13:47:36,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@530e61cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:36, skipping insertion in model container [2023-12-02 13:47:36,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:47:36" (1/1) ... [2023-12-02 13:47:36,073 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:47:36,197 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_47043a67-7ce6-4c9c-b84f-b309050b74d8/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-85.i[919,932] [2023-12-02 13:47:36,268 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:47:36,279 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:47:36,290 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_47043a67-7ce6-4c9c-b84f-b309050b74d8/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-85.i[919,932] [2023-12-02 13:47:36,325 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:47:36,341 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:47:36,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:36 WrapperNode [2023-12-02 13:47:36,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:47:36,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:47:36,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:47:36,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:47:36,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:36" (1/1) ... [2023-12-02 13:47:36,361 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:36" (1/1) ... [2023-12-02 13:47:36,400 INFO L138 Inliner]: procedures = 26, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 185 [2023-12-02 13:47:36,401 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:47:36,401 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:47:36,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:47:36,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:47:36,410 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:36" (1/1) ... [2023-12-02 13:47:36,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:36" (1/1) ... [2023-12-02 13:47:36,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:36" (1/1) ... [2023-12-02 13:47:36,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:36" (1/1) ... [2023-12-02 13:47:36,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:36" (1/1) ... [2023-12-02 13:47:36,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:36" (1/1) ... [2023-12-02 13:47:36,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:36" (1/1) ... [2023-12-02 13:47:36,440 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:36" (1/1) ... [2023-12-02 13:47:36,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:47:36,446 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:47:36,447 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:47:36,447 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:47:36,448 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:36" (1/1) ... [2023-12-02 13:47:36,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:47:36,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:47:36,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:47:36,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:47:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:47:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:47:36,518 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:47:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:47:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:47:36,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:47:36,605 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:47:36,608 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:47:36,985 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:47:37,236 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:47:37,236 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:47:37,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:47:37 BoogieIcfgContainer [2023-12-02 13:47:37,238 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:47:37,241 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:47:37,241 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:47:37,244 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:47:37,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:47:36" (1/3) ... [2023-12-02 13:47:37,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508159eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:47:37, skipping insertion in model container [2023-12-02 13:47:37,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:36" (2/3) ... [2023-12-02 13:47:37,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508159eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:47:37, skipping insertion in model container [2023-12-02 13:47:37,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:47:37" (3/3) ... [2023-12-02 13:47:37,247 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-85.i [2023-12-02 13:47:37,267 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:47:37,268 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:47:37,319 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:47:37,324 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;@1708a378, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:47:37,324 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:47:37,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-02 13:47:37,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 13:47:37,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:47:37,342 INFO L195 NwaCegarLoop]: trace histogram [25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:47:37,342 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:47:37,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:47:37,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1131413425, now seen corresponding path program 1 times [2023-12-02 13:47:37,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:47:37,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243024128] [2023-12-02 13:47:37,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:47:37,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:47:37,510 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:47:37,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888039227] [2023-12-02 13:47:37,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:47:37,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:47:37,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:47:37,520 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:47:37,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:47:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:47:38,428 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:47:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:47:38,686 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 13:47:38,689 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 13:47:38,690 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:47:38,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:47:38,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:47:38,899 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 13:47:38,903 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:47:38,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:47:38 BoogieIcfgContainer [2023-12-02 13:47:38,999 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:47:38,999 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:47:38,999 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:47:39,000 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:47:39,000 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:47:37" (3/4) ... [2023-12-02 13:47:39,002 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:47:39,003 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:47:39,004 INFO L158 Benchmark]: Toolchain (without parser) took 2970.84ms. Allocated memory is still 180.4MB. Free memory was 139.4MB in the beginning and 128.2MB in the end (delta: 11.2MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2023-12-02 13:47:39,005 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 104.9MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:47:39,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.74ms. Allocated memory is still 180.4MB. Free memory was 139.4MB in the beginning and 124.2MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 13:47:39,006 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.07ms. Allocated memory is still 180.4MB. Free memory was 124.2MB in the beginning and 120.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 13:47:39,007 INFO L158 Benchmark]: Boogie Preprocessor took 44.14ms. Allocated memory is still 180.4MB. Free memory was 120.0MB in the beginning and 117.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:47:39,007 INFO L158 Benchmark]: RCFGBuilder took 791.84ms. Allocated memory is still 180.4MB. Free memory was 117.9MB in the beginning and 112.0MB in the end (delta: 5.9MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2023-12-02 13:47:39,008 INFO L158 Benchmark]: TraceAbstraction took 1757.98ms. Allocated memory is still 180.4MB. Free memory was 111.2MB in the beginning and 128.2MB in the end (delta: -17.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-12-02 13:47:39,008 INFO L158 Benchmark]: Witness Printer took 4.00ms. Allocated memory is still 180.4MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:47:39,011 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 104.9MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.74ms. Allocated memory is still 180.4MB. Free memory was 139.4MB in the beginning and 124.2MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.07ms. Allocated memory is still 180.4MB. Free memory was 124.2MB in the beginning and 120.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.14ms. Allocated memory is still 180.4MB. Free memory was 120.0MB in the beginning and 117.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 791.84ms. Allocated memory is still 180.4MB. Free memory was 117.9MB in the beginning and 112.0MB in the end (delta: 5.9MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1757.98ms. Allocated memory is still 180.4MB. Free memory was 111.2MB in the beginning and 128.2MB in the end (delta: -17.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.00ms. Allocated memory is still 180.4MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 71, overapproximation of shiftLeft at line 75, overapproximation of someBinaryArithmeticDOUBLEoperation at line 110, overapproximation of someBinaryDOUBLEComparisonOperation at line 64. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 1000; [L23] unsigned char var_1_5 = 1; [L24] unsigned char var_1_6 = 0; [L25] float var_1_7 = 0.6; [L26] unsigned long int var_1_8 = 32; [L27] unsigned long int var_1_9 = 32; [L28] float var_1_11 = 5.5; [L29] unsigned long int var_1_12 = 128; [L30] unsigned char var_1_13 = 16; [L31] unsigned char var_1_14 = 0; [L32] unsigned long int var_1_15 = 8; [L33] unsigned char var_1_16 = 0; [L34] unsigned char var_1_17 = 0; [L35] double var_1_18 = 1.8; [L36] double var_1_19 = 4.5; [L37] double var_1_20 = 15.5; [L38] signed char var_1_21 = -5; [L39] signed char var_1_27 = 4; [L40] float var_1_28 = 8.95; [L41] signed short int var_1_30 = -256; [L42] unsigned char var_1_31 = 0; [L43] unsigned char var_1_35 = 1; [L44] unsigned char var_1_36 = 0; [L45] unsigned char var_1_37 = 0; [L46] unsigned char var_1_38 = 1; [L47] unsigned short int var_1_39 = 4; [L48] unsigned char var_1_41 = 10; [L49] unsigned long int last_1_var_1_1 = 1000; [L50] unsigned char last_1_var_1_5 = 1; [L51] unsigned long int last_1_var_1_12 = 128; [L52] unsigned char last_1_var_1_13 = 16; [L53] unsigned long int last_1_var_1_15 = 8; [L180] isInitial = 1 [L181] FCALL initially() [L182] COND TRUE 1 [L183] CALL updateLastVariables() [L169] last_1_var_1_1 = var_1_1 [L170] last_1_var_1_5 = var_1_5 [L171] last_1_var_1_12 = var_1_12 [L172] last_1_var_1_13 = var_1_13 [L173] last_1_var_1_15 = var_1_15 [L183] RET updateLastVariables() [L184] CALL updateVariables() [L129] var_1_6 = __VERIFIER_nondet_uchar() [L130] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_7=3/5, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L130] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_7=3/5, var_1_8=32, var_1_9=32] [L131] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L131] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=32, var_1_9=32] [L132] var_1_8 = __VERIFIER_nondet_ulong() [L133] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_9=32] [L20] COND FALSE !(!cond) [L133] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_9=32] [L134] CALL assume_abort_if_not(var_1_8 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_9=32] [L20] COND FALSE !(!cond) [L134] RET assume_abort_if_not(var_1_8 <= 4294967295) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_9=32] [L135] CALL assume_abort_if_not(var_1_8 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=32] [L20] COND FALSE !(!cond) [L135] RET assume_abort_if_not(var_1_8 != 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=32] [L136] var_1_9 = __VERIFIER_nondet_ulong() [L137] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295] [L20] COND FALSE !(!cond) [L137] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295] [L138] CALL assume_abort_if_not(var_1_9 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295] [L20] COND FALSE !(!cond) [L138] RET assume_abort_if_not(var_1_9 <= 4294967295) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295] [L139] CALL assume_abort_if_not(var_1_9 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not(var_1_9 != 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=11/2, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L140] var_1_11 = __VERIFIER_nondet_float() [L141] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=0, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L142] var_1_14 = __VERIFIER_nondet_uchar() [L143] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L144] CALL assume_abort_if_not(var_1_14 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not(var_1_14 <= 254) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L145] var_1_17 = __VERIFIER_nondet_uchar() [L146] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L147] CALL assume_abort_if_not(var_1_17 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_17 <= 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=9/2, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L148] var_1_19 = __VERIFIER_nondet_double() [L149] CALL assume_abort_if_not((var_1_19 >= -461168.6018427382800e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 4611686.018427382800e+12F && var_1_19 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not((var_1_19 >= -461168.6018427382800e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 4611686.018427382800e+12F && var_1_19 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_20=31/2, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L150] var_1_20 = __VERIFIER_nondet_double() [L151] CALL assume_abort_if_not((var_1_20 >= 0.0F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 4611686.018427382800e+12F && var_1_20 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not((var_1_20 >= 0.0F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 4611686.018427382800e+12F && var_1_20 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=4, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L152] var_1_27 = __VERIFIER_nondet_char() [L153] CALL assume_abort_if_not(var_1_27 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not(var_1_27 >= -127) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L154] CALL assume_abort_if_not(var_1_27 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not(var_1_27 <= 126) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L155] var_1_35 = __VERIFIER_nondet_uchar() [L156] CALL assume_abort_if_not(var_1_35 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not(var_1_35 >= 1) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L157] CALL assume_abort_if_not(var_1_35 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not(var_1_35 <= 1) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=0, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L158] var_1_36 = __VERIFIER_nondet_uchar() [L159] CALL assume_abort_if_not(var_1_36 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=1, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_36 >= 1) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=1, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L160] CALL assume_abort_if_not(var_1_36 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=1, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L160] RET assume_abort_if_not(var_1_36 <= 1) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=1, var_1_37=0, var_1_38=1, var_1_39=4, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L161] var_1_39 = __VERIFIER_nondet_ushort() [L162] CALL assume_abort_if_not(var_1_39 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=1, var_1_37=0, var_1_38=1, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_39 >= 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=1, var_1_37=0, var_1_38=1, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L163] CALL assume_abort_if_not(var_1_39 <= 15) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=1, var_1_37=0, var_1_38=1, var_1_39=15, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L163] RET assume_abort_if_not(var_1_39 <= 15) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=1, var_1_37=0, var_1_38=1, var_1_39=15, var_1_41=10, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L164] var_1_41 = __VERIFIER_nondet_uchar() [L165] CALL assume_abort_if_not(var_1_41 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=1, var_1_37=0, var_1_38=1, var_1_39=15, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L165] RET assume_abort_if_not(var_1_41 >= 0) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=1, var_1_37=0, var_1_38=1, var_1_39=15, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L166] CALL assume_abort_if_not(var_1_41 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=1, var_1_37=0, var_1_38=1, var_1_39=15, var_1_41=33, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not(var_1_41 <= 63) VAL [isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_12=128, var_1_13=16, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_1=1000, var_1_21=-5, var_1_27=-127, var_1_28=179/20, var_1_30=-256, var_1_31=0, var_1_35=1, var_1_36=1, var_1_37=0, var_1_38=1, var_1_39=15, var_1_41=33, var_1_5=1, var_1_6=0, var_1_7=3/5, var_1_8=4294967295, var_1_9=4294967280] [L184] RET updateVariables() [L185] CALL step() [L57] COND TRUE \read(var_1_5) [L58] COND FALSE !((var_1_14 - ((((var_1_13) < (var_1_13)) ? (var_1_13) : (var_1_13)))) <= var_1_13) [L62] var_1_28 = var_1_19 [L63] var_1_30 = ((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) [L64] COND FALSE !((((((var_1_20 - var_1_20)) < (var_1_11)) ? ((var_1_20 - var_1_20)) : (var_1_11))) > (var_1_19 * 31.3)) [L69] var_1_31 = (var_1_35 && ((var_1_13 > var_1_13) && (! var_1_36))) [L71] COND FALSE !((var_1_7 / 25.4f) >= ((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7)))) [L74] COND TRUE ! var_1_6 [L75] EXPR (var_1_13 + var_1_14) << ((((5) < (var_1_39)) ? (5) : (var_1_39))) [L75] COND FALSE !((var_1_9 + var_1_13) >= ((var_1_13 + var_1_14) << ((((5) < (var_1_39)) ? (5) : (var_1_39))))) [L82] COND FALSE !(! (var_1_14 >= var_1_41)) [L85] var_1_38 = 0 [L89] signed long int stepLocal_1 = last_1_var_1_13; [L90] signed long int stepLocal_0 = last_1_var_1_13; [L91] COND TRUE stepLocal_1 < ((- last_1_var_1_12) * 64) [L92] COND TRUE \read(last_1_var_1_5) [L93] var_1_1 = ((((last_1_var_1_12) < 0 ) ? -(last_1_var_1_12) : (last_1_var_1_12))) [L102] unsigned long int stepLocal_2 = last_1_var_1_15 + last_1_var_1_1; [L103] COND TRUE last_1_var_1_13 <= stepLocal_2 [L104] var_1_5 = ((last_1_var_1_15 == last_1_var_1_13) && var_1_6) [L108] unsigned char stepLocal_3 = var_1_5; [L109] COND FALSE !(stepLocal_3 || var_1_17) [L112] var_1_13 = ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14))) [L113] var_1_16 = (var_1_6 && var_1_17) [L114] COND FALSE !(\read(var_1_5)) [L117] COND FALSE !((var_1_15 + (var_1_15 * var_1_13)) <= ((32u / var_1_8) / var_1_9)) [L122] var_1_7 = var_1_11 [L124] COND FALSE !(var_1_7 <= (- (32.8f + var_1_7))) [L185] RET step() [L186] CALL, EXPR property() [L176-L177] return ((((((((last_1_var_1_13 < ((- last_1_var_1_12) * 64)) ? (last_1_var_1_5 ? (var_1_1 == ((unsigned long int) ((((last_1_var_1_12) < 0 ) ? -(last_1_var_1_12) : (last_1_var_1_12))))) : ((-10000000 < last_1_var_1_13) ? (var_1_1 == ((unsigned long int) (((((((last_1_var_1_12) > (5u)) ? (last_1_var_1_12) : (5u))) < 0 ) ? -((((last_1_var_1_12) > (5u)) ? (last_1_var_1_12) : (5u))) : ((((last_1_var_1_12) > (5u)) ? (last_1_var_1_12) : (5u))))))) : (var_1_1 == ((unsigned long int) 50u)))) : 1) && ((last_1_var_1_13 <= (last_1_var_1_15 + last_1_var_1_1)) ? (var_1_5 == ((unsigned char) ((last_1_var_1_15 == last_1_var_1_13) && var_1_6))) : (var_1_5 == ((unsigned char) var_1_6)))) && (((var_1_15 + (var_1_15 * var_1_13)) <= ((32u / var_1_8) / var_1_9)) ? ((1.25f < var_1_18) ? (var_1_7 == ((float) 1000000.1f)) : 1) : (var_1_7 == ((float) var_1_11)))) && ((var_1_7 <= (- (32.8f + var_1_7))) ? (var_1_12 == ((unsigned long int) last_1_var_1_12)) : 1)) && (var_1_13 == ((unsigned char) ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)))))) && (var_1_5 ? (var_1_15 == ((unsigned long int) ((((var_1_1) > ((var_1_13 + ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)))))) ? (var_1_1) : ((var_1_13 + ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14))))))))) : 1)) && (var_1_16 == ((unsigned char) (var_1_6 && var_1_17)))) && ((var_1_5 || var_1_17) ? (var_1_18 == ((double) ((((((var_1_19) < 0 ) ? -(var_1_19) : (var_1_19))) + var_1_20) - 63.6))) : 1) ; [L186] RET, EXPR property() [L186] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=2, var_1_12=128, var_1_13=33, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=3, var_1_1=128, var_1_21=-5, var_1_27=-127, var_1_28=3, var_1_30=16, var_1_31=0, var_1_35=1, var_1_36=1, var_1_37=0, var_1_38=0, var_1_39=15, var_1_41=33, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=4294967295, var_1_9=4294967280] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=128, last_1_var_1_13=16, last_1_var_1_15=8, last_1_var_1_1=1000, last_1_var_1_5=1, var_1_11=2, var_1_12=128, var_1_13=33, var_1_14=33, var_1_15=8, var_1_16=0, var_1_17=0, var_1_18=9/5, var_1_19=3, var_1_1=128, var_1_21=-5, var_1_27=-127, var_1_28=3, var_1_30=16, var_1_31=0, var_1_35=1, var_1_36=1, var_1_37=0, var_1_38=0, var_1_39=15, var_1_41=33, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=4294967295, var_1_9=4294967280] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 1, TraceHistogramMax: 25, 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=47occurred 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, 0.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 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 13:47:39,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-85.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 cc4a7aa458277533675aacdf7af943b27ec70a7d49ed5d9ca73af9a35907fc2d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:47:40,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:47:41,040 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 13:47:41,046 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:47:41,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:47:41,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:47:41,074 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:47:41,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:47:41,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:47:41,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:47:41,077 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:47:41,077 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:47:41,078 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:47:41,078 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:47:41,079 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:47:41,079 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:47:41,081 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:47:41,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:47:41,082 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:47:41,082 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:47:41,082 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:47:41,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:47:41,083 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:47:41,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:47:41,084 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 13:47:41,085 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 13:47:41,085 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 13:47:41,085 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:47:41,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:47:41,086 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:47:41,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:47:41,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 13:47:41,087 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:47:41,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:47:41,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:47:41,088 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:47:41,088 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:47:41,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:47:41,089 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 13:47:41,089 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 13:47:41,089 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:47:41,089 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:47:41,090 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:47:41,090 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:47:41,090 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_47043a67-7ce6-4c9c-b84f-b309050b74d8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc4a7aa458277533675aacdf7af943b27ec70a7d49ed5d9ca73af9a35907fc2d [2023-12-02 13:47:41,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:47:41,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:47:41,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:47:41,431 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:47:41,431 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:47:41,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-85.i [2023-12-02 13:47:44,214 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:47:44,403 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:47:44,403 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-85.i [2023-12-02 13:47:44,414 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/data/ed2eb398e/5ab45eb64af1492596a6f2270791afc5/FLAGd63bedbf6 [2023-12-02 13:47:44,427 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/data/ed2eb398e/5ab45eb64af1492596a6f2270791afc5 [2023-12-02 13:47:44,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:47:44,431 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:47:44,432 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:47:44,432 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:47:44,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:47:44,437 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:47:44" (1/1) ... [2023-12-02 13:47:44,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7bf8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:44, skipping insertion in model container [2023-12-02 13:47:44,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:47:44" (1/1) ... [2023-12-02 13:47:44,469 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:47:44,617 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_47043a67-7ce6-4c9c-b84f-b309050b74d8/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-85.i[919,932] [2023-12-02 13:47:44,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:47:44,701 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:47:44,712 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_47043a67-7ce6-4c9c-b84f-b309050b74d8/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-85.i[919,932] [2023-12-02 13:47:44,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:47:44,769 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:47:44,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:44 WrapperNode [2023-12-02 13:47:44,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:47:44,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:47:44,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:47:44,771 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:47:44,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:44" (1/1) ... [2023-12-02 13:47:44,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:44" (1/1) ... [2023-12-02 13:47:44,822 INFO L138 Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 179 [2023-12-02 13:47:44,822 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:47:44,823 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:47:44,823 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:47:44,824 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:47:44,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:44" (1/1) ... [2023-12-02 13:47:44,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:44" (1/1) ... [2023-12-02 13:47:44,840 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:44" (1/1) ... [2023-12-02 13:47:44,840 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:44" (1/1) ... [2023-12-02 13:47:44,855 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:44" (1/1) ... [2023-12-02 13:47:44,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:44" (1/1) ... [2023-12-02 13:47:44,864 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:44" (1/1) ... [2023-12-02 13:47:44,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:44" (1/1) ... [2023-12-02 13:47:44,873 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:47:44,874 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:47:44,874 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:47:44,874 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:47:44,875 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:44" (1/1) ... [2023-12-02 13:47:44,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:47:44,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:47:44,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:47:44,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:47:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:47:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 13:47:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:47:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:47:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:47:44,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:47:45,040 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:47:45,042 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:47:54,072 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:47:54,117 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:47:54,117 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:47:54,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:47:54 BoogieIcfgContainer [2023-12-02 13:47:54,118 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:47:54,121 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:47:54,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:47:54,124 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:47:54,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:47:44" (1/3) ... [2023-12-02 13:47:54,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45776158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:47:54, skipping insertion in model container [2023-12-02 13:47:54,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:44" (2/3) ... [2023-12-02 13:47:54,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45776158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:47:54, skipping insertion in model container [2023-12-02 13:47:54,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:47:54" (3/3) ... [2023-12-02 13:47:54,127 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-85.i [2023-12-02 13:47:54,146 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:47:54,146 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:47:54,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:47:54,193 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;@652a5255, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:47:54,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:47:54,197 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 46 states have (on average 1.5) internal successors, (69), 47 states have internal predecessors, (69), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-02 13:47:54,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-02 13:47:54,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:47:54,212 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:47:54,212 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:47:54,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:47:54,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1237581311, now seen corresponding path program 1 times [2023-12-02 13:47:54,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:47:54,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1853421887] [2023-12-02 13:47:54,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:47:54,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:47:54,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:47:54,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 13:47:54,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 13:47:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:47:55,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:47:55,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:47:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-02 13:47:55,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:47:55,938 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:47:55,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1853421887] [2023-12-02 13:47:55,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1853421887] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:47:55,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:47:55,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:47:55,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347588468] [2023-12-02 13:47:55,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:47:55,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:47:55,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:47:55,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:47:55,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:47:55,975 INFO L87 Difference]: Start difference. First operand has 74 states, 46 states have (on average 1.5) internal successors, (69), 47 states have internal predecessors, (69), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-02 13:47:58,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:47:58,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:47:58,517 INFO L93 Difference]: Finished difference Result 204 states and 385 transitions. [2023-12-02 13:47:58,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:47:58,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 158 [2023-12-02 13:47:58,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:47:58,540 INFO L225 Difference]: With dead ends: 204 [2023-12-02 13:47:58,540 INFO L226 Difference]: Without dead ends: 131 [2023-12-02 13:47:58,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:47:58,546 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 25 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:47:58,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 211 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2023-12-02 13:47:58,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-12-02 13:47:58,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 120. [2023-12-02 13:47:58,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 67 states have internal predecessors, (88), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-02 13:47:58,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 188 transitions. [2023-12-02 13:47:58,624 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 188 transitions. Word has length 158 [2023-12-02 13:47:58,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:47:58,625 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 188 transitions. [2023-12-02 13:47:58,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-02 13:47:58,626 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 188 transitions. [2023-12-02 13:47:58,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-02 13:47:58,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:47:58,630 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:47:58,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 13:47:58,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 13:47:58,833 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:47:58,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:47:58,834 INFO L85 PathProgramCache]: Analyzing trace with hash -16826445, now seen corresponding path program 1 times [2023-12-02 13:47:58,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:47:58,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655942707] [2023-12-02 13:47:58,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:47:58,835 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 13:47:58,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:47:58,836 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 13:47:58,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 13:47:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:47:59,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:47:59,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:01,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-02 13:48:01,710 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:48:01,710 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:48:01,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655942707] [2023-12-02 13:48:01,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655942707] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:48:01,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:48:01,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:48:01,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850856235] [2023-12-02 13:48:01,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:48:01,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:48:01,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:48:01,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:48:01,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:48:01,716 INFO L87 Difference]: Start difference. First operand 120 states and 188 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-02 13:48:04,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:48:06,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:48:09,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:48:12,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:48:14,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:48:16,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:48:16,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:48:16,745 INFO L93 Difference]: Finished difference Result 262 states and 414 transitions. [2023-12-02 13:48:16,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:48:16,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 159 [2023-12-02 13:48:16,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:48:16,750 INFO L225 Difference]: With dead ends: 262 [2023-12-02 13:48:16,750 INFO L226 Difference]: Without dead ends: 191 [2023-12-02 13:48:16,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:48:16,752 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 38 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:48:16,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 202 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 4 Unknown, 0 Unchecked, 15.0s Time] [2023-12-02 13:48:16,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-12-02 13:48:16,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 189. [2023-12-02 13:48:16,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 110 states have (on average 1.3454545454545455) internal successors, (148), 110 states have internal predecessors, (148), 75 states have call successors, (75), 3 states have call predecessors, (75), 3 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-02 13:48:16,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 298 transitions. [2023-12-02 13:48:16,783 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 298 transitions. Word has length 159 [2023-12-02 13:48:16,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:48:16,785 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 298 transitions. [2023-12-02 13:48:16,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-02 13:48:16,786 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 298 transitions. [2023-12-02 13:48:16,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-02 13:48:16,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:48:16,789 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:48:16,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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)] Forceful destruction successful, exit code 0 [2023-12-02 13:48:17,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 13:48:17,001 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:48:17,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:48:17,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1296690123, now seen corresponding path program 1 times [2023-12-02 13:48:17,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:48:17,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126611575] [2023-12-02 13:48:17,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:48:17,002 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 13:48:17,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:48:17,021 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 13:48:17,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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)] Waiting until timeout for monitored process [2023-12-02 13:48:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:48:17,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:48:17,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:18,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 118 proven. 69 refuted. 0 times theorem prover too weak. 1013 trivial. 0 not checked. [2023-12-02 13:48:18,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:48:18,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-12-02 13:48:18,846 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:48:18,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126611575] [2023-12-02 13:48:18,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2126611575] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:48:18,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [32220] [2023-12-02 13:48:18,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:48:18,847 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 13:48:18,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 13:48:18,848 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 13:48:18,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 13:48:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:48:20,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:48:20,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:21,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-02 13:48:21,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:48:21,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [32220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:48:21,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 13:48:21,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2023-12-02 13:48:21,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080297043] [2023-12-02 13:48:21,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:48:21,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:48:21,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:48:21,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:48:21,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-02 13:48:21,318 INFO L87 Difference]: Start difference. First operand 189 states and 298 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-02 13:48:24,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:48:24,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:48:24,266 INFO L93 Difference]: Finished difference Result 329 states and 521 transitions. [2023-12-02 13:48:24,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:48:24,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 159 [2023-12-02 13:48:24,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:48:24,305 INFO L225 Difference]: With dead ends: 329 [2023-12-02 13:48:24,306 INFO L226 Difference]: Without dead ends: 189 [2023-12-02 13:48:24,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 465 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-02 13:48:24,309 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 99 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:48:24,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 144 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-02 13:48:24,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-12-02 13:48:24,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2023-12-02 13:48:24,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 110 states have (on average 1.3272727272727274) internal successors, (146), 110 states have internal predecessors, (146), 75 states have call successors, (75), 3 states have call predecessors, (75), 3 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-02 13:48:24,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 296 transitions. [2023-12-02 13:48:24,348 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 296 transitions. Word has length 159 [2023-12-02 13:48:24,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:48:24,349 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 296 transitions. [2023-12-02 13:48:24,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-02 13:48:24,350 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 296 transitions. [2023-12-02 13:48:24,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-02 13:48:24,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:48:24,353 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:48:24,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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)] Ended with exit code 0 [2023-12-02 13:48:24,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 13:48:24,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 13:48:24,756 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:48:24,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:48:24,757 INFO L85 PathProgramCache]: Analyzing trace with hash -2013937655, now seen corresponding path program 1 times [2023-12-02 13:48:24,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:48:24,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406535238] [2023-12-02 13:48:24,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:48:24,758 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 13:48:24,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:48:24,759 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 13:48:24,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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)] Waiting until timeout for monitored process [2023-12-02 13:48:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:48:25,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:48:25,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:26,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 118 proven. 69 refuted. 0 times theorem prover too weak. 1013 trivial. 0 not checked. [2023-12-02 13:48:26,322 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:48:26,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-12-02 13:48:26,744 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:48:26,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406535238] [2023-12-02 13:48:26,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406535238] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:48:26,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1688439161] [2023-12-02 13:48:26,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:48:26,745 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 13:48:26,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 13:48:26,746 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 13:48:26,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 13:48:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:48:28,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 13:48:28,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:30,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-02 13:48:30,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:48:30,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1688439161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:48:30,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 13:48:30,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2023-12-02 13:48:30,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812220695] [2023-12-02 13:48:30,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:48:30,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:48:30,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:48:30,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:48:30,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-02 13:48:30,203 INFO L87 Difference]: Start difference. First operand 189 states and 296 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-02 13:48:32,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:48:34,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:48:36,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:48:39,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:48:39,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:48:39,556 INFO L93 Difference]: Finished difference Result 506 states and 788 transitions. [2023-12-02 13:48:39,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 13:48:39,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 160 [2023-12-02 13:48:39,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:48:39,561 INFO L225 Difference]: With dead ends: 506 [2023-12-02 13:48:39,561 INFO L226 Difference]: Without dead ends: 366 [2023-12-02 13:48:39,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 468 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-02 13:48:39,564 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 210 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 57 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:48:39,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 488 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 58 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2023-12-02 13:48:39,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-12-02 13:48:39,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 310. [2023-12-02 13:48:39,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 179 states have (on average 1.2960893854748603) internal successors, (232), 179 states have internal predecessors, (232), 125 states have call successors, (125), 5 states have call predecessors, (125), 5 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2023-12-02 13:48:39,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 482 transitions. [2023-12-02 13:48:39,635 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 482 transitions. Word has length 160 [2023-12-02 13:48:39,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:48:39,636 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 482 transitions. [2023-12-02 13:48:39,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-02 13:48:39,637 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 482 transitions. [2023-12-02 13:48:39,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-02 13:48:39,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:48:39,639 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:48:39,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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)] Ended with exit code 0 [2023-12-02 13:48:39,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 13:48:40,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 13:48:40,045 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:48:40,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:48:40,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1956679353, now seen corresponding path program 1 times [2023-12-02 13:48:40,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:48:40,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012706073] [2023-12-02 13:48:40,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:48:40,046 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 13:48:40,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:48:40,047 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 13:48:40,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 13:48:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:48:40,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:48:40,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:41,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 118 proven. 69 refuted. 0 times theorem prover too weak. 1013 trivial. 0 not checked. [2023-12-02 13:48:41,362 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:48:41,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-12-02 13:48:41,726 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:48:41,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012706073] [2023-12-02 13:48:41,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012706073] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:48:41,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1211291867] [2023-12-02 13:48:41,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:48:41,727 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 13:48:41,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 13:48:41,728 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 13:48:41,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 13:48:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:48:44,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 13:48:44,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:44,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 118 proven. 69 refuted. 0 times theorem prover too weak. 1013 trivial. 0 not checked. [2023-12-02 13:48:44,772 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:48:45,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-12-02 13:48:45,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1211291867] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:48:45,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906676634] [2023-12-02 13:48:45,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:48:45,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:48:45,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:48:45,064 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:48:45,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 13:48:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:48:45,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:48:45,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:46,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 118 proven. 69 refuted. 0 times theorem prover too weak. 1013 trivial. 0 not checked. [2023-12-02 13:48:46,187 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:48:46,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-12-02 13:48:46,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906676634] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:48:46,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 13:48:46,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 7 [2023-12-02 13:48:46,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390896863] [2023-12-02 13:48:46,478 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 13:48:46,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 13:48:46,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:48:46,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 13:48:46,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 13:48:46,480 INFO L87 Difference]: Start difference. First operand 310 states and 482 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-12-02 13:48:47,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:48:47,957 INFO L93 Difference]: Finished difference Result 606 states and 915 transitions. [2023-12-02 13:48:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 13:48:47,983 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 160 [2023-12-02 13:48:47,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:48:47,985 INFO L225 Difference]: With dead ends: 606 [2023-12-02 13:48:47,986 INFO L226 Difference]: Without dead ends: 350 [2023-12-02 13:48:47,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 958 GetRequests, 946 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-02 13:48:47,987 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 82 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:48:47,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 184 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-02 13:48:47,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-12-02 13:48:48,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 330. [2023-12-02 13:48:48,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 194 states have (on average 1.2577319587628866) internal successors, (244), 194 states have internal predecessors, (244), 125 states have call successors, (125), 10 states have call predecessors, (125), 10 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2023-12-02 13:48:48,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 494 transitions. [2023-12-02 13:48:48,035 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 494 transitions. Word has length 160 [2023-12-02 13:48:48,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:48:48,036 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 494 transitions. [2023-12-02 13:48:48,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-12-02 13:48:48,037 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 494 transitions. [2023-12-02 13:48:48,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-02 13:48:48,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:48:48,039 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:48:48,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 13:48:48,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 13:48:48,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 13:48:48,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:48:48,645 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:48:48,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:48:48,646 INFO L85 PathProgramCache]: Analyzing trace with hash 292011991, now seen corresponding path program 1 times [2023-12-02 13:48:48,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:48:48,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587036669] [2023-12-02 13:48:48,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:48:48,646 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 13:48:48,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:48:48,647 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 13:48:48,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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)] Waiting until timeout for monitored process [2023-12-02 13:48:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:48:49,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 13:48:49,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:51,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 624 proven. 36 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2023-12-02 13:48:51,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:48:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-12-02 13:48:52,224 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:48:52,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587036669] [2023-12-02 13:48:52,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587036669] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:48:52,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [774165633] [2023-12-02 13:48:52,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:48:52,224 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 13:48:52,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 13:48:52,225 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 13:48:52,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 13:48:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:48:54,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 13:48:54,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:54,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 624 proven. 36 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2023-12-02 13:48:54,857 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:48:55,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-12-02 13:48:55,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [774165633] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:48:55,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330958831] [2023-12-02 13:48:55,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:48:55,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:48:55,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:48:55,240 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:48:55,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 13:48:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:48:55,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 13:48:55,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 624 proven. 36 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2023-12-02 13:48:56,103 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:48:56,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-12-02 13:48:56,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330958831] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:48:56,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 13:48:56,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 7, 7, 7, 7] total 22 [2023-12-02 13:48:56,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377094210] [2023-12-02 13:48:56,375 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 13:48:56,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-02 13:48:56,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:48:56,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-02 13:48:56,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2023-12-02 13:48:56,377 INFO L87 Difference]: Start difference. First operand 330 states and 494 transitions. Second operand has 22 states, 22 states have (on average 5.590909090909091) internal successors, (123), 22 states have internal predecessors, (123), 6 states have call successors, (87), 4 states have call predecessors, (87), 8 states have return successors, (88), 6 states have call predecessors, (88), 6 states have call successors, (88) [2023-12-02 13:49:00,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:49:02,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:49:04,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:49:06,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:49:10,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:49:14,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:49:15,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:49:20,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:49:21,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:49:23,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:49:25,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:49:27,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:49:29,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:49:29,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:49:29,992 INFO L93 Difference]: Finished difference Result 726 states and 1044 transitions. [2023-12-02 13:49:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-02 13:49:29,993 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.590909090909091) internal successors, (123), 22 states have internal predecessors, (123), 6 states have call successors, (87), 4 states have call predecessors, (87), 8 states have return successors, (88), 6 states have call predecessors, (88), 6 states have call successors, (88) Word has length 162 [2023-12-02 13:49:29,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:49:29,997 INFO L225 Difference]: With dead ends: 726 [2023-12-02 13:49:29,997 INFO L226 Difference]: Without dead ends: 454 [2023-12-02 13:49:29,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1001 GetRequests, 945 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=604, Invalid=2366, Unknown=0, NotChecked=0, Total=2970 [2023-12-02 13:49:30,000 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 549 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 277 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:49:30,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 948 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 1029 Invalid, 8 Unknown, 0 Unchecked, 32.0s Time] [2023-12-02 13:49:30,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-12-02 13:49:30,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 360. [2023-12-02 13:49:30,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 217 states have (on average 1.1843317972350231) internal successors, (257), 217 states have internal predecessors, (257), 125 states have call successors, (125), 17 states have call predecessors, (125), 17 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2023-12-02 13:49:30,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 507 transitions. [2023-12-02 13:49:30,044 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 507 transitions. Word has length 162 [2023-12-02 13:49:30,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:49:30,045 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 507 transitions. [2023-12-02 13:49:30,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.590909090909091) internal successors, (123), 22 states have internal predecessors, (123), 6 states have call successors, (87), 4 states have call predecessors, (87), 8 states have return successors, (88), 6 states have call predecessors, (88), 6 states have call successors, (88) [2023-12-02 13:49:30,045 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 507 transitions. [2023-12-02 13:49:30,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-02 13:49:30,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:49:30,047 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:30,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 13:49:30,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-02 13:49:30,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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)] Ended with exit code 0 [2023-12-02 13:49:30,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 13:49:30,648 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:49:30,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:49:30,648 INFO L85 PathProgramCache]: Analyzing trace with hash -517334635, now seen corresponding path program 1 times [2023-12-02 13:49:30,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:49:30,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400523890] [2023-12-02 13:49:30,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:49:30,649 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 13:49:30,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:49:30,650 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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 13:49:30,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47043a67-7ce6-4c9c-b84f-b309050b74d8/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)] Waiting until timeout for monitored process [2023-12-02 13:49:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:49:31,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 13:49:31,496 INFO L285 TraceCheckSpWp]: Computing forward predicates...