./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-29.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-29.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ --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 fec4b280805184c749824e312e7f34c74619d41e7a9bdd7fa1e8580eb2148883 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:13:09,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:13:09,511 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:13:09,517 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:13:09,518 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:13:09,567 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:13:09,568 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:13:09,569 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:13:09,570 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:13:09,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:13:09,576 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:13:09,577 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:13:09,577 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:13:09,579 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:13:09,579 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:13:09,580 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:13:09,580 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:13:09,581 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:13:09,581 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:13:09,582 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:13:09,582 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:13:09,583 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:13:09,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:13:09,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:13:09,585 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:13:09,585 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:13:09,585 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:13:09,586 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:13:09,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:13:09,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:13:09,588 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:13:09,588 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:13:09,589 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:13:09,589 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:13:09,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:13:09,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:13:09,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:13:09,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:13:09,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:13:09,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:13:09,591 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:13:09,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:13:09,591 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:13:09,592 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:13:09,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:13:09,593 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_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fec4b280805184c749824e312e7f34c74619d41e7a9bdd7fa1e8580eb2148883 [2023-11-19 05:13:09,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:13:09,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:13:09,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:13:09,863 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:13:09,864 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:13:09,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-29.i [2023-11-19 05:13:13,048 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:13:13,293 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:13:13,294 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-29.i [2023-11-19 05:13:13,305 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/data/df8915811/47538d0851d748febb909841e1395584/FLAGfd004817e [2023-11-19 05:13:13,320 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/data/df8915811/47538d0851d748febb909841e1395584 [2023-11-19 05:13:13,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:13:13,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:13:13,326 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:13:13,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:13:13,331 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:13:13,332 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:13:13" (1/1) ... [2023-11-19 05:13:13,334 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ecfdcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:13, skipping insertion in model container [2023-11-19 05:13:13,334 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:13:13" (1/1) ... [2023-11-19 05:13:13,388 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:13:13,576 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_11de618e-a1f4-43bf-90df-c3a58b988883/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-29.i[919,932] [2023-11-19 05:13:13,646 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:13:13,661 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:13:13,674 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_11de618e-a1f4-43bf-90df-c3a58b988883/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-29.i[919,932] [2023-11-19 05:13:13,711 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:13:13,730 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:13:13,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:13 WrapperNode [2023-11-19 05:13:13,731 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:13:13,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:13:13,733 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:13:13,733 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:13:13,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:13" (1/1) ... [2023-11-19 05:13:13,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:13" (1/1) ... [2023-11-19 05:13:13,794 INFO L138 Inliner]: procedures = 26, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 206 [2023-11-19 05:13:13,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:13:13,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:13:13,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:13:13,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:13:13,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:13" (1/1) ... [2023-11-19 05:13:13,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:13" (1/1) ... [2023-11-19 05:13:13,809 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:13" (1/1) ... [2023-11-19 05:13:13,809 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:13" (1/1) ... [2023-11-19 05:13:13,820 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:13" (1/1) ... [2023-11-19 05:13:13,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:13" (1/1) ... [2023-11-19 05:13:13,827 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:13" (1/1) ... [2023-11-19 05:13:13,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:13" (1/1) ... [2023-11-19 05:13:13,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:13:13,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:13:13,835 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:13:13,835 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:13:13,836 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:13" (1/1) ... [2023-11-19 05:13:13,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:13:13,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:13:13,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:13:13,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:13:13,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:13:13,913 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:13:13,913 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:13:13,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:13:13,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:13:13,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:13:14,004 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:13:14,007 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:13:14,471 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:13:14,963 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:13:14,963 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:13:14,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:14 BoogieIcfgContainer [2023-11-19 05:13:14,972 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:13:14,977 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:13:14,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:13:14,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:13:14,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:13:13" (1/3) ... [2023-11-19 05:13:14,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b717b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:13:14, skipping insertion in model container [2023-11-19 05:13:14,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:13" (2/3) ... [2023-11-19 05:13:14,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b717b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:13:14, skipping insertion in model container [2023-11-19 05:13:14,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:14" (3/3) ... [2023-11-19 05:13:14,988 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-29.i [2023-11-19 05:13:15,016 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:13:15,016 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:13:15,092 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:13:15,104 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;@2bd81613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:13:15,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:13:15,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 05:13:15,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-19 05:13:15,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:15,128 INFO L195 NwaCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:15,129 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:15,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:15,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1918339371, now seen corresponding path program 1 times [2023-11-19 05:13:15,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:13:15,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617339872] [2023-11-19 05:13:15,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:15,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:13:15,489 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:13:15,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1551653760] [2023-11-19 05:13:15,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:15,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:13:15,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:13:15,496 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:13:15,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:13:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:13:17,055 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:13:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:13:19,350 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:13:19,353 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:13:19,354 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:13:19,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:13:19,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:13:19,569 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:13:19,573 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:13:19,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:13:19 BoogieIcfgContainer [2023-11-19 05:13:19,759 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:13:19,760 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:13:19,760 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:13:19,760 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:13:19,761 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:14" (3/4) ... [2023-11-19 05:13:19,766 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:13:19,767 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:13:19,769 INFO L158 Benchmark]: Toolchain (without parser) took 6444.02ms. Allocated memory is still 186.6MB. Free memory was 148.8MB in the beginning and 149.9MB in the end (delta: -1.2MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2023-11-19 05:13:19,770 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory was 64.7MB in the beginning and 64.6MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:13:19,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.88ms. Allocated memory is still 186.6MB. Free memory was 148.3MB in the beginning and 134.1MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 05:13:19,772 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.00ms. Allocated memory is still 186.6MB. Free memory was 133.7MB in the beginning and 131.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:13:19,777 INFO L158 Benchmark]: Boogie Preprocessor took 39.17ms. Allocated memory is still 186.6MB. Free memory was 131.0MB in the beginning and 128.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:13:19,778 INFO L158 Benchmark]: RCFGBuilder took 1137.01ms. Allocated memory is still 186.6MB. Free memory was 128.9MB in the beginning and 116.5MB in the end (delta: 12.5MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2023-11-19 05:13:19,779 INFO L158 Benchmark]: TraceAbstraction took 4781.85ms. Allocated memory is still 186.6MB. Free memory was 116.5MB in the beginning and 149.9MB in the end (delta: -33.5MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. [2023-11-19 05:13:19,779 INFO L158 Benchmark]: Witness Printer took 7.71ms. Allocated memory is still 186.6MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:13:19,787 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory was 64.7MB in the beginning and 64.6MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.88ms. Allocated memory is still 186.6MB. Free memory was 148.3MB in the beginning and 134.1MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.00ms. Allocated memory is still 186.6MB. Free memory was 133.7MB in the beginning and 131.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.17ms. Allocated memory is still 186.6MB. Free memory was 131.0MB in the beginning and 128.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1137.01ms. Allocated memory is still 186.6MB. Free memory was 128.9MB in the beginning and 116.5MB in the end (delta: 12.5MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4781.85ms. Allocated memory is still 186.6MB. Free memory was 116.5MB in the beginning and 149.9MB in the end (delta: -33.5MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. * Witness Printer took 7.71ms. Allocated memory is still 186.6MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 66, overapproximation of bitwiseOr at line 121, overapproximation of someBinaryDOUBLEComparisonOperation at line 71, overapproximation of someBinaryArithmeticFLOAToperation at line 58. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_6 = 0; [L24] unsigned char var_1_7 = 0; [L25] signed short int var_1_8 = 0; [L26] signed short int var_1_9 = 0; [L27] signed short int var_1_10 = 8; [L28] signed char var_1_11 = 1; [L29] signed char var_1_12 = 32; [L30] signed char var_1_13 = -2; [L31] signed char var_1_14 = 8; [L32] signed char var_1_15 = 0; [L33] signed char var_1_16 = 10; [L34] signed char var_1_17 = 32; [L35] unsigned char var_1_18 = 0; [L36] signed char var_1_19 = -1; [L37] signed short int var_1_20 = 100; [L38] signed short int var_1_22 = 29265; [L39] float var_1_23 = 31.6; [L40] float var_1_24 = 9.2; [L41] float var_1_25 = 15.6; [L42] float var_1_26 = 25.25; [L43] unsigned long int var_1_27 = 256; [L44] double var_1_29 = 15.86; [L45] signed short int var_1_31 = 10; [L46] float var_1_39 = 4.7; [L47] unsigned short int var_1_40 = 100; [L48] signed short int var_1_41 = 4; [L49] float var_1_45 = 31.6; [L50] unsigned short int var_1_47 = 64; [L51] double var_1_48 = 16.75; [L189] isInitial = 1 [L190] FCALL initially() [L191] COND TRUE 1 [L192] FCALL updateLastVariables() [L193] CALL updateVariables() [L138] var_1_6 = __VERIFIER_nondet_uchar() [L139] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=1, var_1_12=32, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=8, var_1_11=1, var_1_12=32, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_7=0, var_1_8=0, var_1_9=0] [L140] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=1, var_1_12=32, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L140] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, var_1_10=8, var_1_11=1, var_1_12=32, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=0] [L141] var_1_7 = __VERIFIER_nondet_uchar() [L142] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=1, var_1_12=32, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, var_1_10=8, var_1_11=1, var_1_12=32, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=0] [L143] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=1, var_1_12=32, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_10=8, var_1_11=1, var_1_12=32, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=0] [L144] var_1_9 = __VERIFIER_nondet_short() [L145] CALL assume_abort_if_not(var_1_9 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=1, var_1_12=32, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_9 >= -1) VAL [isInitial=1, var_1_10=8, var_1_11=1, var_1_12=32, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L146] CALL assume_abort_if_not(var_1_9 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=1, var_1_12=32, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_9 <= 32766) VAL [isInitial=1, var_1_10=8, var_1_11=1, var_1_12=32, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L147] var_1_10 = __VERIFIER_nondet_short() [L148] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=32, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=32, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L149] CALL assume_abort_if_not(var_1_10 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=32, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_10 <= 16383) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=32, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L150] var_1_12 = __VERIFIER_nondet_char() [L151] CALL assume_abort_if_not(var_1_12 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_12 >= -63) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L152] CALL assume_abort_if_not(var_1_12 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_12 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-2, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L153] var_1_13 = __VERIFIER_nondet_char() [L154] CALL assume_abort_if_not(var_1_13 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not(var_1_13 >= -63) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L155] CALL assume_abort_if_not(var_1_13 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not(var_1_13 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=8, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L156] var_1_14 = __VERIFIER_nondet_char() [L157] CALL assume_abort_if_not(var_1_14 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not(var_1_14 >= -63) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L158] CALL assume_abort_if_not(var_1_14 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_14 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=0, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L159] var_1_15 = __VERIFIER_nondet_char() [L160] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L160] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L161] CALL assume_abort_if_not(var_1_15 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_15 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=10, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L162] var_1_16 = __VERIFIER_nondet_char() [L163] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L163] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L164] CALL assume_abort_if_not(var_1_16 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_16 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=32, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L165] var_1_17 = __VERIFIER_nondet_char() [L166] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L167] CALL assume_abort_if_not(var_1_17 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L167] RET assume_abort_if_not(var_1_17 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-1, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L168] var_1_19 = __VERIFIER_nondet_char() [L169] CALL assume_abort_if_not(var_1_19 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=6, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L169] RET assume_abort_if_not(var_1_19 >= -128) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=6, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L170] CALL assume_abort_if_not(var_1_19 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=6, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L170] RET assume_abort_if_not(var_1_19 <= 127) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=6, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L171] CALL assume_abort_if_not(var_1_19 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=6, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L171] RET assume_abort_if_not(var_1_19 != 0) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=6, var_1_1=0, var_1_20=100, var_1_22=29265, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L172] var_1_22 = __VERIFIER_nondet_short() [L173] CALL assume_abort_if_not(var_1_22 >= 16382) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=6, var_1_1=0, var_1_20=100, var_1_22=16382, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L173] RET assume_abort_if_not(var_1_22 >= 16382) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=6, var_1_1=0, var_1_20=100, var_1_22=16382, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L174] CALL assume_abort_if_not(var_1_22 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=6, var_1_1=0, var_1_20=100, var_1_22=16382, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L174] RET assume_abort_if_not(var_1_22 <= 32766) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=6, var_1_1=0, var_1_20=100, var_1_22=16382, var_1_23=158/5, var_1_24=46/5, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L175] var_1_24 = __VERIFIER_nondet_float() [L176] CALL assume_abort_if_not((var_1_24 >= -461168.6018427382800e+13F && var_1_24 <= -1.0e-20F) || (var_1_24 <= 4611686.018427382800e+12F && var_1_24 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=6, var_1_1=0, var_1_20=100, var_1_22=16382, var_1_23=158/5, var_1_24=2, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L176] RET assume_abort_if_not((var_1_24 >= -461168.6018427382800e+13F && var_1_24 <= -1.0e-20F) || (var_1_24 <= 4611686.018427382800e+12F && var_1_24 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=6, var_1_1=0, var_1_20=100, var_1_22=16382, var_1_23=158/5, var_1_24=2, var_1_25=78/5, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L177] var_1_25 = __VERIFIER_nondet_float() [L178] CALL assume_abort_if_not((var_1_25 >= -461168.6018427382800e+13F && var_1_25 <= -1.0e-20F) || (var_1_25 <= 4611686.018427382800e+12F && var_1_25 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=6, var_1_1=0, var_1_20=100, var_1_22=16382, var_1_23=158/5, var_1_24=2, var_1_25=3, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L178] RET assume_abort_if_not((var_1_25 >= -461168.6018427382800e+13F && var_1_25 <= -1.0e-20F) || (var_1_25 <= 4611686.018427382800e+12F && var_1_25 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=6, var_1_1=0, var_1_20=100, var_1_22=16382, var_1_23=158/5, var_1_24=2, var_1_25=3, var_1_26=101/4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L179] var_1_26 = __VERIFIER_nondet_float() [L180] CALL assume_abort_if_not((var_1_26 >= -461168.6018427382800e+13F && var_1_26 <= -1.0e-20F) || (var_1_26 <= 4611686.018427382800e+12F && var_1_26 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=6, var_1_1=0, var_1_20=100, var_1_22=16382, var_1_23=158/5, var_1_24=2, var_1_25=3, var_1_26=4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L20] COND FALSE !(!cond) [L180] RET assume_abort_if_not((var_1_26 >= -461168.6018427382800e+13F && var_1_26 <= -1.0e-20F) || (var_1_26 <= 4611686.018427382800e+12F && var_1_26 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=6, var_1_1=0, var_1_20=100, var_1_22=16382, var_1_23=158/5, var_1_24=2, var_1_25=3, var_1_26=4, var_1_27=256, var_1_29=793/50, var_1_31=10, var_1_39=47/10, var_1_40=100, var_1_41=4, var_1_45=158/5, var_1_47=64, var_1_48=67/4, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=16320] [L193] RET updateVariables() [L194] CALL step() [L55] var_1_8 = (var_1_9 - (2 + var_1_10)) [L56] COND TRUE var_1_22 != var_1_12 [L57] COND TRUE var_1_10 <= var_1_17 [L58] var_1_23 = (var_1_24 + ((((var_1_25) > (var_1_26)) ? (var_1_25) : (var_1_26)))) [L63] COND FALSE !(! ((var_1_9 - var_1_22) > var_1_12)) [L66] COND TRUE var_1_23 == var_1_23 [L67] COND TRUE var_1_15 >= (var_1_27 / var_1_19) [L68] var_1_18 = var_1_7 [L71] COND TRUE (- ((((var_1_23) < (var_1_23)) ? (var_1_23) : (var_1_23)))) > (1.625 * var_1_23) [L72] var_1_20 = ((var_1_22 - (var_1_16 + var_1_15)) - var_1_10) [L76] COND TRUE \read(var_1_18) [L77] var_1_1 = (((-128 <= var_1_20) || (var_1_23 >= var_1_23)) && var_1_6) [L81] COND FALSE !(\read(var_1_1)) [L84] COND FALSE !(var_1_27 >= var_1_14) [L87] COND TRUE \read(var_1_7) [L88] var_1_11 = var_1_16 [L94] var_1_29 = var_1_26 [L95] COND TRUE var_1_7 && var_1_7 [L96] var_1_31 = ((((((((var_1_15 - var_1_10)) > (((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))))) ? ((var_1_15 - var_1_10)) : (((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9)))))) < 0 ) ? -(((((var_1_15 - var_1_10)) > (((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))))) ? ((var_1_15 - var_1_10)) : (((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9)))))) : (((((var_1_15 - var_1_10)) > (((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))))) ? ((var_1_15 - var_1_10)) : (((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9)))))))) [L106] COND TRUE var_1_23 < var_1_24 [L107] COND FALSE !(var_1_16 > var_1_22) [L113] var_1_40 = var_1_15 [L114] COND FALSE !(\read(var_1_1)) [L121] EXPR var_1_15 | var_1_15 [L121] COND FALSE !(var_1_10 > (var_1_15 | var_1_15)) [L128] var_1_41 = var_1_15 [L131] COND TRUE var_1_1 || var_1_7 [L132] var_1_45 = (10.125f + var_1_24) [L134] var_1_47 = var_1_15 [L135] var_1_48 = var_1_25 [L194] RET step() [L195] CALL, EXPR property() [L185-L186] return ((((((var_1_18 ? (var_1_1 == ((unsigned char) (((-128 <= var_1_20) || (var_1_23 >= var_1_23)) && var_1_6))) : (var_1_1 == ((unsigned char) var_1_7))) && (var_1_8 == ((signed short int) (var_1_9 - (2 + var_1_10))))) && (var_1_1 ? (var_1_11 == ((signed char) (var_1_12 + ((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14)))))) : ((var_1_27 >= var_1_14) ? (var_1_11 == ((signed char) ((var_1_15 + var_1_16) - var_1_17))) : (var_1_7 ? (var_1_11 == ((signed char) var_1_16)) : (var_1_11 == ((signed char) var_1_12)))))) && ((var_1_23 == var_1_23) ? ((var_1_15 >= (var_1_27 / var_1_19)) ? (var_1_18 == ((unsigned char) var_1_7)) : 1) : 1)) && (((- ((((var_1_23) < (var_1_23)) ? (var_1_23) : (var_1_23)))) > (1.625 * var_1_23)) ? (var_1_20 == ((signed short int) ((var_1_22 - (var_1_16 + var_1_15)) - var_1_10))) : (var_1_20 == ((signed short int) var_1_19)))) && ((var_1_22 != var_1_12) ? ((var_1_10 <= var_1_17) ? (var_1_23 == ((float) (var_1_24 + ((((var_1_25) > (var_1_26)) ? (var_1_25) : (var_1_26)))))) : 1) : (var_1_23 == ((float) var_1_25)))) && ((! ((var_1_9 - var_1_22) > var_1_12)) ? (var_1_27 == ((unsigned long int) var_1_15)) : 1) ; [L195] RET, EXPR property() [L195] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=1, var_1_19=6, var_1_1=0, var_1_20=16330, var_1_22=16382, var_1_23=0, var_1_24=2, var_1_25=3, var_1_26=4, var_1_27=256, var_1_29=4, var_1_31=16320, var_1_39=47/10, var_1_40=52, var_1_41=52, var_1_45=0, var_1_47=52, var_1_48=3, var_1_6=0, var_1_7=1, var_1_8=16318, var_1_9=16320] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=-63, var_1_13=-63, var_1_14=-1, var_1_15=52, var_1_16=0, var_1_17=1, var_1_18=1, var_1_19=6, var_1_1=0, var_1_20=16330, var_1_22=16382, var_1_23=0, var_1_24=2, var_1_25=3, var_1_26=4, var_1_27=256, var_1_29=4, var_1_31=16320, var_1_39=47/10, var_1_40=52, var_1_41=52, var_1_45=0, var_1_47=52, var_1_48=3, var_1_6=0, var_1_7=1, var_1_8=16318, var_1_9=16320] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 1, TraceHistogramMax: 28, 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=52occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 05:13:19,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/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_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-29.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ --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 fec4b280805184c749824e312e7f34c74619d41e7a9bdd7fa1e8580eb2148883 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:13:22,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:13:22,511 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:13:22,517 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:13:22,518 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:13:22,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:13:22,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:13:22,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:13:22,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:13:22,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:13:22,549 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:13:22,549 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:13:22,550 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:13:22,551 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:13:22,551 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:13:22,552 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:13:22,559 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:13:22,562 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:13:22,563 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:13:22,564 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:13:22,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:13:22,566 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:13:22,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:13:22,567 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:13:22,567 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:13:22,568 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:13:22,568 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:13:22,569 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:13:22,569 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:13:22,570 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:13:22,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:13:22,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:13:22,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:13:22,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:13:22,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:13:22,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:13:22,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:13:22,573 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:13:22,573 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:13:22,574 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:13:22,575 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:13:22,575 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:13:22,575 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_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fec4b280805184c749824e312e7f34c74619d41e7a9bdd7fa1e8580eb2148883 [2023-11-19 05:13:22,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:13:23,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:13:23,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:13:23,013 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:13:23,014 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:13:23,015 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-29.i [2023-11-19 05:13:26,108 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:13:26,403 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:13:26,403 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-29.i [2023-11-19 05:13:26,413 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/data/0782a06c2/12785e35bf844deea2a58225020f6047/FLAGdd1cefe2f [2023-11-19 05:13:26,437 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/data/0782a06c2/12785e35bf844deea2a58225020f6047 [2023-11-19 05:13:26,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:13:26,441 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:13:26,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:13:26,442 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:13:26,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:13:26,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:13:26" (1/1) ... [2023-11-19 05:13:26,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a16e416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:26, skipping insertion in model container [2023-11-19 05:13:26,454 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:13:26" (1/1) ... [2023-11-19 05:13:26,504 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:13:26,649 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_11de618e-a1f4-43bf-90df-c3a58b988883/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-29.i[919,932] [2023-11-19 05:13:26,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:13:26,728 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:13:26,741 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_11de618e-a1f4-43bf-90df-c3a58b988883/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-29.i[919,932] [2023-11-19 05:13:26,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:13:26,834 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:13:26,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:26 WrapperNode [2023-11-19 05:13:26,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:13:26,865 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:13:26,865 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:13:26,865 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:13:26,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:26" (1/1) ... [2023-11-19 05:13:26,894 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:26" (1/1) ... [2023-11-19 05:13:26,943 INFO L138 Inliner]: procedures = 27, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 185 [2023-11-19 05:13:26,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:13:26,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:13:26,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:13:26,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:13:26,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:26" (1/1) ... [2023-11-19 05:13:26,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:26" (1/1) ... [2023-11-19 05:13:26,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:26" (1/1) ... [2023-11-19 05:13:26,967 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:26" (1/1) ... [2023-11-19 05:13:26,986 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:26" (1/1) ... [2023-11-19 05:13:27,005 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:26" (1/1) ... [2023-11-19 05:13:27,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:26" (1/1) ... [2023-11-19 05:13:27,013 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:26" (1/1) ... [2023-11-19 05:13:27,020 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:13:27,021 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:13:27,021 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:13:27,021 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:13:27,022 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:26" (1/1) ... [2023-11-19 05:13:27,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:13:27,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:13:27,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:13:27,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:13:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:13:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:13:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:13:27,123 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:13:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:13:27,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:13:27,249 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:13:27,252 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:13:30,843 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:13:30,856 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:13:30,856 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:13:30,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:30 BoogieIcfgContainer [2023-11-19 05:13:30,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:13:30,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:13:30,869 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:13:30,872 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:13:30,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:13:26" (1/3) ... [2023-11-19 05:13:30,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d628106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:13:30, skipping insertion in model container [2023-11-19 05:13:30,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:13:26" (2/3) ... [2023-11-19 05:13:30,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d628106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:13:30, skipping insertion in model container [2023-11-19 05:13:30,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:13:30" (3/3) ... [2023-11-19 05:13:30,876 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-29.i [2023-11-19 05:13:30,925 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:13:30,925 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:13:30,999 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:13:31,006 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;@47238360, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:13:31,008 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:13:31,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 55 states have (on average 1.4727272727272727) internal successors, (81), 56 states have internal predecessors, (81), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 05:13:31,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-11-19 05:13:31,037 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:31,038 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:31,039 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:31,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:31,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1647633280, now seen corresponding path program 1 times [2023-11-19 05:13:31,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:13:31,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241762760] [2023-11-19 05:13:31,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:31,069 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:13:31,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:13:31,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:13:31,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 05:13:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:31,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:13:31,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:31,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 614 proven. 0 refuted. 0 times theorem prover too weak. 898 trivial. 0 not checked. [2023-11-19 05:13:31,680 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:13:31,681 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:13:31,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241762760] [2023-11-19 05:13:31,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241762760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:31,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:13:31,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:13:31,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927399186] [2023-11-19 05:13:31,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:31,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:13:31,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:13:31,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:13:31,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:13:31,757 INFO L87 Difference]: Start difference. First operand has 86 states, 55 states have (on average 1.4727272727272727) internal successors, (81), 56 states have internal predecessors, (81), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-19 05:13:31,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:31,812 INFO L93 Difference]: Finished difference Result 165 states and 296 transitions. [2023-11-19 05:13:31,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:13:31,815 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 178 [2023-11-19 05:13:31,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:31,825 INFO L225 Difference]: With dead ends: 165 [2023-11-19 05:13:31,825 INFO L226 Difference]: Without dead ends: 82 [2023-11-19 05:13:31,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:13:31,832 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:31,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:13:31,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-19 05:13:31,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2023-11-19 05:13:31,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 05:13:31,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 129 transitions. [2023-11-19 05:13:31,886 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 129 transitions. Word has length 178 [2023-11-19 05:13:31,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:31,887 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 129 transitions. [2023-11-19 05:13:31,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-19 05:13:31,888 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 129 transitions. [2023-11-19 05:13:31,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-11-19 05:13:31,892 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:31,893 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:31,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:13:32,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:13:32,105 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:32,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:32,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1937590716, now seen corresponding path program 1 times [2023-11-19 05:13:32,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:13:32,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665807088] [2023-11-19 05:13:32,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:32,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:13:32,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:13:32,110 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:13:32,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 05:13:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:32,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:13:32,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:32,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 441 proven. 12 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2023-11-19 05:13:32,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:13:32,966 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:13:32,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665807088] [2023-11-19 05:13:32,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665807088] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:13:32,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [266116694] [2023-11-19 05:13:32,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:32,967 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:13:32,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:13:32,976 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:13:32,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 05:13:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:33,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:13:33,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:34,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-11-19 05:13:34,353 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:13:34,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [266116694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:34,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:13:34,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-19 05:13:34,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52561165] [2023-11-19 05:13:34,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:34,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:13:34,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:13:34,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:13:34,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:13:34,358 INFO L87 Difference]: Start difference. First operand 82 states and 129 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-11-19 05:13:35,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:35,319 INFO L93 Difference]: Finished difference Result 240 states and 381 transitions. [2023-11-19 05:13:35,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:13:35,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 178 [2023-11-19 05:13:35,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:35,340 INFO L225 Difference]: With dead ends: 240 [2023-11-19 05:13:35,340 INFO L226 Difference]: Without dead ends: 161 [2023-11-19 05:13:35,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:13:35,343 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 44 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:35,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 249 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 05:13:35,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-11-19 05:13:35,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2023-11-19 05:13:35,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 100 states have (on average 1.41) internal successors, (141), 100 states have internal predecessors, (141), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-19 05:13:35,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 253 transitions. [2023-11-19 05:13:35,384 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 253 transitions. Word has length 178 [2023-11-19 05:13:35,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:35,386 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 253 transitions. [2023-11-19 05:13:35,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-11-19 05:13:35,386 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 253 transitions. [2023-11-19 05:13:35,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-11-19 05:13:35,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:35,390 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:35,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:13:35,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-19 05:13:35,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:13:35,799 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:35,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:35,800 INFO L85 PathProgramCache]: Analyzing trace with hash 926473466, now seen corresponding path program 1 times [2023-11-19 05:13:35,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:13:35,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771793967] [2023-11-19 05:13:35,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:35,802 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:13:35,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:13:35,803 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:13:35,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 05:13:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:36,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:13:36,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:36,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 441 proven. 12 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2023-11-19 05:13:36,489 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:13:36,540 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:13:36,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771793967] [2023-11-19 05:13:36,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771793967] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:13:36,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1916071182] [2023-11-19 05:13:36,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:36,542 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:13:36,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:13:36,545 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:13:36,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 05:13:37,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:37,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:13:37,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:37,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-11-19 05:13:37,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:13:37,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1916071182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:37,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:13:37,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-19 05:13:37,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126202921] [2023-11-19 05:13:37,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:37,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:13:37,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:13:37,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:13:37,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:13:37,242 INFO L87 Difference]: Start difference. First operand 159 states and 253 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-11-19 05:13:38,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:38,105 INFO L93 Difference]: Finished difference Result 457 states and 727 transitions. [2023-11-19 05:13:38,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:13:38,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 178 [2023-11-19 05:13:38,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:38,112 INFO L225 Difference]: With dead ends: 457 [2023-11-19 05:13:38,112 INFO L226 Difference]: Without dead ends: 301 [2023-11-19 05:13:38,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:13:38,116 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 108 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:38,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 332 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 05:13:38,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-11-19 05:13:38,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 177. [2023-11-19 05:13:38,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 118 states have (on average 1.4322033898305084) internal successors, (169), 118 states have internal predecessors, (169), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-19 05:13:38,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 281 transitions. [2023-11-19 05:13:38,177 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 281 transitions. Word has length 178 [2023-11-19 05:13:38,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:38,178 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 281 transitions. [2023-11-19 05:13:38,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-11-19 05:13:38,179 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 281 transitions. [2023-11-19 05:13:38,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-11-19 05:13:38,187 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:38,187 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:38,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-19 05:13:38,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 05:13:38,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:13:38,591 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:38,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:38,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1538184390, now seen corresponding path program 1 times [2023-11-19 05:13:38,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:13:38,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484370547] [2023-11-19 05:13:38,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:38,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:13:38,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:13:38,595 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:13:38,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-19 05:13:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:39,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:13:39,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:39,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 441 proven. 12 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2023-11-19 05:13:39,223 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:13:39,272 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:13:39,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484370547] [2023-11-19 05:13:39,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484370547] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:13:39,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [923609925] [2023-11-19 05:13:39,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:39,273 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:13:39,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:13:39,276 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:13:39,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-19 05:13:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:39,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:13:39,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:39,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-11-19 05:13:39,932 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:13:39,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [923609925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:39,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:13:39,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-19 05:13:39,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749687261] [2023-11-19 05:13:39,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:39,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:13:39,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:13:39,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:13:39,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:13:39,936 INFO L87 Difference]: Start difference. First operand 177 states and 281 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-11-19 05:13:40,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:40,923 INFO L93 Difference]: Finished difference Result 411 states and 642 transitions. [2023-11-19 05:13:40,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:13:40,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 178 [2023-11-19 05:13:40,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:40,928 INFO L225 Difference]: With dead ends: 411 [2023-11-19 05:13:40,928 INFO L226 Difference]: Without dead ends: 237 [2023-11-19 05:13:40,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:13:40,930 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 28 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:40,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 248 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 05:13:40,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-19 05:13:40,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 231. [2023-11-19 05:13:40,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 166 states have (on average 1.4036144578313252) internal successors, (233), 168 states have internal predecessors, (233), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-19 05:13:40,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 353 transitions. [2023-11-19 05:13:40,973 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 353 transitions. Word has length 178 [2023-11-19 05:13:40,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:40,974 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 353 transitions. [2023-11-19 05:13:40,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-11-19 05:13:40,974 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 353 transitions. [2023-11-19 05:13:40,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-19 05:13:40,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:40,978 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:40,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-19 05:13:41,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/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)] Ended with exit code 0 [2023-11-19 05:13:41,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:13:41,383 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:41,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:41,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1224176573, now seen corresponding path program 1 times [2023-11-19 05:13:41,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:13:41,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963712512] [2023-11-19 05:13:41,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:41,385 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:13:41,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:13:41,391 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:13:41,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/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)] Waiting until timeout for monitored process [2023-11-19 05:13:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:41,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:13:41,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:42,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 441 proven. 12 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2023-11-19 05:13:42,027 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:13:42,081 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:13:42,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963712512] [2023-11-19 05:13:42,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963712512] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:13:42,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1244567963] [2023-11-19 05:13:42,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:42,082 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:13:42,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:13:42,085 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:13:42,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-19 05:13:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:43,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:13:43,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:43,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-11-19 05:13:43,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:13:43,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1244567963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:13:43,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:13:43,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-19 05:13:43,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403166316] [2023-11-19 05:13:43,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:13:43,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:13:43,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:13:43,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:13:43,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:13:43,660 INFO L87 Difference]: Start difference. First operand 231 states and 353 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-11-19 05:13:45,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:13:45,440 INFO L93 Difference]: Finished difference Result 677 states and 1033 transitions. [2023-11-19 05:13:45,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:13:45,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 179 [2023-11-19 05:13:45,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:13:45,447 INFO L225 Difference]: With dead ends: 677 [2023-11-19 05:13:45,448 INFO L226 Difference]: Without dead ends: 449 [2023-11-19 05:13:45,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:13:45,450 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 115 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:13:45,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 323 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-19 05:13:45,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-11-19 05:13:45,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 447. [2023-11-19 05:13:45,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 318 states have (on average 1.3396226415094339) internal successors, (426), 322 states have internal predecessors, (426), 120 states have call successors, (120), 8 states have call predecessors, (120), 8 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2023-11-19 05:13:45,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 666 transitions. [2023-11-19 05:13:45,514 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 666 transitions. Word has length 179 [2023-11-19 05:13:45,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:13:45,514 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 666 transitions. [2023-11-19 05:13:45,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-11-19 05:13:45,515 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 666 transitions. [2023-11-19 05:13:45,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-19 05:13:45,518 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:13:45,518 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:13:45,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:13:45,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-19 05:13:45,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 05:13:45,931 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:13:45,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:13:45,931 INFO L85 PathProgramCache]: Analyzing trace with hash 203108219, now seen corresponding path program 1 times [2023-11-19 05:13:45,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:13:45,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [29186867] [2023-11-19 05:13:45,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:45,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:13:45,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:13:45,933 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:13:45,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:13:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:46,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:13:46,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:46,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 441 proven. 12 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2023-11-19 05:13:46,574 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:13:46,623 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:13:46,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [29186867] [2023-11-19 05:13:46,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [29186867] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:13:46,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1834133675] [2023-11-19 05:13:46,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:46,623 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:13:46,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:13:46,629 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:13:46,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-19 05:13:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:48,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:13:48,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:48,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 183 proven. 3 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2023-11-19 05:13:48,971 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:13:49,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2023-11-19 05:13:49,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1834133675] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:13:49,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746946201] [2023-11-19 05:13:49,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:13:49,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:13:49,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:13:49,726 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:13:49,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11de618e-a1f4-43bf-90df-c3a58b988883/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 05:13:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:13:50,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:13:50,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:13:50,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 441 proven. 12 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2023-11-19 05:13:50,270 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:13:50,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746946201] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:13:50,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2023-11-19 05:13:50,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6, 5] total 11 [2023-11-19 05:13:50,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303953866] [2023-11-19 05:13:50,299 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2023-11-19 05:13:50,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 05:13:50,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:13:50,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 05:13:50,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:13:50,303 INFO L87 Difference]: Start difference. First operand 447 states and 666 transitions. Second operand has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 4 states have call successors, (33), 3 states have call predecessors, (33), 5 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2023-11-19 05:14:02,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-19 05:14:04,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]