./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.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_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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_0771a242-c2f4-46b0-9c6e-bb156b109477/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 2015d37ef3c12f799914a1d5573231d07895302eda54efaaedb57c9454a76b5a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:24:08,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:24:08,352 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:24:08,357 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:24:08,358 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:24:08,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:24:08,394 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:24:08,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:24:08,395 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:24:08,397 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:24:08,397 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:24:08,398 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:24:08,398 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:24:08,403 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:24:08,403 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:24:08,404 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:24:08,405 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:24:08,405 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:24:08,406 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:24:08,406 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:24:08,407 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:24:08,407 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:24:08,408 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:24:08,408 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:24:08,409 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:24:08,409 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:24:08,409 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:24:08,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:24:08,410 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:24:08,411 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:24:08,412 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:24:08,412 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:24:08,412 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:24:08,412 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:24:08,413 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:24:08,413 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:24:08,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:08,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:24:08,414 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:24:08,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:24:08,414 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:24:08,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:24:08,415 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:24:08,415 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:24:08,415 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:24:08,415 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_0771a242-c2f4-46b0-9c6e-bb156b109477/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2015d37ef3c12f799914a1d5573231d07895302eda54efaaedb57c9454a76b5a [2023-11-19 05:24:08,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:24:08,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:24:08,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:24:08,750 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:24:08,751 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:24:08,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i [2023-11-19 05:24:11,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:24:12,096 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:24:12,097 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i [2023-11-19 05:24:12,107 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/data/b3b9ffedb/56c5500743b24ab2affb15e91cfc4dd0/FLAGaf1a9e652 [2023-11-19 05:24:12,120 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/data/b3b9ffedb/56c5500743b24ab2affb15e91cfc4dd0 [2023-11-19 05:24:12,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:24:12,132 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:24:12,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:12,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:24:12,140 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:24:12,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:12" (1/1) ... [2023-11-19 05:24:12,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@644ec76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:12, skipping insertion in model container [2023-11-19 05:24:12,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:12" (1/1) ... [2023-11-19 05:24:12,181 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:24:12,359 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_0771a242-c2f4-46b0-9c6e-bb156b109477/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i[917,930] [2023-11-19 05:24:12,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:12,451 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:24:12,463 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_0771a242-c2f4-46b0-9c6e-bb156b109477/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i[917,930] [2023-11-19 05:24:12,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:12,523 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:24:12,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:12 WrapperNode [2023-11-19 05:24:12,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:12,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:12,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:24:12,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:24:12,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:12" (1/1) ... [2023-11-19 05:24:12,546 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:12" (1/1) ... [2023-11-19 05:24:12,611 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 199 [2023-11-19 05:24:12,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:12,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:24:12,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:24:12,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:24:12,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:12" (1/1) ... [2023-11-19 05:24:12,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:12" (1/1) ... [2023-11-19 05:24:12,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:12" (1/1) ... [2023-11-19 05:24:12,628 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:12" (1/1) ... [2023-11-19 05:24:12,645 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:12" (1/1) ... [2023-11-19 05:24:12,659 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:12" (1/1) ... [2023-11-19 05:24:12,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:12" (1/1) ... [2023-11-19 05:24:12,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:12" (1/1) ... [2023-11-19 05:24:12,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:24:12,684 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:24:12,684 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:24:12,684 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:24:12,685 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:12" (1/1) ... [2023-11-19 05:24:12,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:12,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:12,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:24:12,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:24:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:24:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:24:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:24:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:24:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:24:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:24:12,883 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:24:12,886 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:24:13,383 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:24:13,807 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:24:13,808 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:24:13,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:13 BoogieIcfgContainer [2023-11-19 05:24:13,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:24:13,816 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:24:13,817 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:24:13,820 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:24:13,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:24:12" (1/3) ... [2023-11-19 05:24:13,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4428305a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:13, skipping insertion in model container [2023-11-19 05:24:13,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:12" (2/3) ... [2023-11-19 05:24:13,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4428305a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:13, skipping insertion in model container [2023-11-19 05:24:13,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:13" (3/3) ... [2023-11-19 05:24:13,826 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-78.i [2023-11-19 05:24:13,845 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:24:13,845 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:24:13,897 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:24:13,904 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;@59b0dc34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:24:13,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:24:13,908 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 05:24:13,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 05:24:13,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:13,918 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:13,919 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:13,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:13,924 INFO L85 PathProgramCache]: Analyzing trace with hash -908772333, now seen corresponding path program 1 times [2023-11-19 05:24:13,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:24:13,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242120294] [2023-11-19 05:24:13,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:13,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:24:14,081 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:24:14,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1857064391] [2023-11-19 05:24:14,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:14,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:24:14,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:14,084 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:24:14,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:24:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:24:14,454 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:24:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:24:14,688 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:24:14,690 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:24:14,694 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:24:14,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:24:14,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 05:24:14,907 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:24:14,911 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:24:15,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:24:15 BoogieIcfgContainer [2023-11-19 05:24:15,022 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:24:15,023 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:24:15,023 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:24:15,023 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:24:15,023 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:13" (3/4) ... [2023-11-19 05:24:15,025 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:24:15,026 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:24:15,027 INFO L158 Benchmark]: Toolchain (without parser) took 2895.65ms. Allocated memory is still 161.5MB. Free memory was 131.8MB in the beginning and 116.9MB in the end (delta: 14.9MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2023-11-19 05:24:15,028 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:24:15,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.21ms. Allocated memory is still 161.5MB. Free memory was 131.4MB in the beginning and 116.1MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 05:24:15,029 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.50ms. Allocated memory is still 161.5MB. Free memory was 116.1MB in the beginning and 110.1MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 05:24:15,030 INFO L158 Benchmark]: Boogie Preprocessor took 70.55ms. Allocated memory is still 161.5MB. Free memory was 110.1MB in the beginning and 107.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:24:15,031 INFO L158 Benchmark]: RCFGBuilder took 1129.94ms. Allocated memory is still 161.5MB. Free memory was 107.2MB in the beginning and 94.8MB in the end (delta: 12.4MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2023-11-19 05:24:15,031 INFO L158 Benchmark]: TraceAbstraction took 1205.60ms. Allocated memory is still 161.5MB. Free memory was 94.1MB in the beginning and 117.1MB in the end (delta: -23.1MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2023-11-19 05:24:15,032 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 161.5MB. Free memory was 117.1MB in the beginning and 116.9MB in the end (delta: 226.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:24:15,035 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.21ms. Allocated memory is still 161.5MB. Free memory was 131.4MB in the beginning and 116.1MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.50ms. Allocated memory is still 161.5MB. Free memory was 116.1MB in the beginning and 110.1MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.55ms. Allocated memory is still 161.5MB. Free memory was 110.1MB in the beginning and 107.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1129.94ms. Allocated memory is still 161.5MB. Free memory was 107.2MB in the beginning and 94.8MB in the end (delta: 12.4MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1205.60ms. Allocated memory is still 161.5MB. Free memory was 94.1MB in the beginning and 117.1MB in the end (delta: -23.1MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 161.5MB. Free memory was 117.1MB in the beginning and 116.9MB in the end (delta: 226.8kB). 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 bitwiseOr at line 51, overapproximation of someBinaryArithmeticDOUBLEoperation at line 61, overapproximation of bitwiseAnd at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 63. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -4; [L23] signed long int var_1_2 = 0; [L24] unsigned char var_1_3 = 64; [L25] unsigned char var_1_4 = 0; [L26] unsigned char var_1_5 = 2; [L27] unsigned short int var_1_6 = 10; [L28] unsigned short int var_1_7 = 8; [L29] double var_1_8 = 1.875; [L30] signed long int var_1_9 = -4; [L31] double var_1_10 = 63.5; [L32] double var_1_11 = 255.375; [L33] double var_1_12 = 999999999.525; [L34] double var_1_13 = 63.75; [L35] double var_1_14 = 0.625; [L36] unsigned short int var_1_15 = 5; [L37] signed char var_1_16 = 4; [L38] signed char var_1_17 = 0; [L39] signed char var_1_18 = -2; [L40] signed char var_1_19 = 1; [L41] unsigned short int var_1_20 = 50; [L42] unsigned short int var_1_21 = 0; [L121] isInitial = 1 [L122] FCALL initially() [L123] COND TRUE 1 [L124] FCALL updateLastVariables() [L125] CALL updateVariables() [L78] var_1_2 = __VERIFIER_nondet_long() [L79] CALL assume_abort_if_not(var_1_2 >= -2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=0, var_1_5=2, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_2 >= -2147483646) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=0, var_1_5=2, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L80] CALL assume_abort_if_not(var_1_2 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=0, var_1_5=2, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_2 <= 2147483646) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=0, var_1_5=2, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L81] var_1_4 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=2, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=2, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L83] CALL assume_abort_if_not(var_1_4 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=2, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_4 <= 254) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=2, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L84] var_1_5 = __VERIFIER_nondet_uchar() [L85] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L86] CALL assume_abort_if_not(var_1_5 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_5 <= 254) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L87] var_1_7 = __VERIFIER_nondet_ushort() [L88] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=-4] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=-4] [L89] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=-4] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=-4] [L90] var_1_9 = __VERIFIER_nondet_long() [L91] CALL assume_abort_if_not(var_1_9 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_9 >= -2147483648) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L92] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L93] CALL assume_abort_if_not(var_1_9 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_9 != 0) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L94] var_1_10 = __VERIFIER_nondet_double() [L95] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L96] var_1_11 = __VERIFIER_nondet_double() [L97] CALL assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L98] var_1_12 = __VERIFIER_nondet_double() [L99] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L100] var_1_13 = __VERIFIER_nondet_double() [L101] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L102] var_1_14 = __VERIFIER_nondet_double() [L103] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L104] var_1_17 = __VERIFIER_nondet_char() [L105] CALL assume_abort_if_not(var_1_17 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=31, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_17 >= -63) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=31, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L106] CALL assume_abort_if_not(var_1_17 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=31, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_17 <= 63) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=31, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L107] var_1_18 = __VERIFIER_nondet_char() [L108] CALL assume_abort_if_not(var_1_18 >= -31) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=31, var_1_18=1, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_18 >= -31) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=31, var_1_18=1, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L109] CALL assume_abort_if_not(var_1_18 <= 32) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=31, var_1_18=1, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_18 <= 32) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=31, var_1_18=1, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L110] var_1_19 = __VERIFIER_nondet_char() [L111] CALL assume_abort_if_not(var_1_19 >= -31) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=31, var_1_18=1, var_1_19=30, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_19 >= -31) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=31, var_1_18=1, var_1_19=30, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L112] CALL assume_abort_if_not(var_1_19 <= 31) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=31, var_1_18=1, var_1_19=30, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_19 <= 31) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=31, var_1_18=1, var_1_19=30, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=10, var_1_7=32767, var_1_8=15/8, var_1_9=32] [L125] RET updateVariables() [L126] CALL step() [L46] var_1_1 = ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))) [L47] signed long int stepLocal_0 = var_1_2; [L48] COND FALSE !(var_1_1 < stepLocal_0) [L51] EXPR var_1_2 ^ var_1_1 [L51] signed long int stepLocal_2 = var_1_2 ^ var_1_1; [L52] unsigned char stepLocal_1 = var_1_5; [L53] COND TRUE stepLocal_2 < -256 [L54] var_1_6 = (((((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) < 0 ) ? -((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) : ((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))))) [L60] COND FALSE !(var_1_1 < (var_1_5 % ((((32) > (var_1_9)) ? (32) : (var_1_9))))) [L63] COND TRUE var_1_13 <= (var_1_14 + var_1_11) [L64] var_1_8 = var_1_12 [L67] COND TRUE ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) > var_1_1 [L68] var_1_15 = ((((var_1_3) > ((var_1_5 + var_1_4))) ? (var_1_3) : ((var_1_5 + var_1_4)))) [L70] var_1_16 = (var_1_17 + (var_1_18 + ((((var_1_19) < 0 ) ? -(var_1_19) : (var_1_19))))) [L71] var_1_20 = (((((var_1_5 + var_1_3)) > (var_1_4)) ? ((var_1_5 + var_1_3)) : (var_1_4))) [L72] signed char stepLocal_3 = var_1_16; [L73] EXPR (var_1_2 * var_1_17) & (var_1_15 * var_1_18) [L73] COND FALSE !(stepLocal_3 == ((var_1_2 * var_1_17) & (var_1_15 * var_1_18))) [L126] RET step() [L127] CALL, EXPR property() [L117] EXPR ((var_1_1 == ((signed long int) ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))))) && ((var_1_1 < var_1_2) ? (var_1_3 == ((unsigned char) ((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5))))) : 1)) && (((var_1_2 ^ var_1_1) < -256) ? (var_1_6 == ((unsigned short int) (((((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) < 0 ) ? -((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) : ((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))))))) : ((var_1_5 <= 50) ? (var_1_6 == ((unsigned short int) var_1_3)) : 1)) [L117] EXPR var_1_2 ^ var_1_1 [L117] EXPR ((var_1_1 == ((signed long int) ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))))) && ((var_1_1 < var_1_2) ? (var_1_3 == ((unsigned char) ((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5))))) : 1)) && (((var_1_2 ^ var_1_1) < -256) ? (var_1_6 == ((unsigned short int) (((((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) < 0 ) ? -((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) : ((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))))))) : ((var_1_5 <= 50) ? (var_1_6 == ((unsigned short int) var_1_3)) : 1)) [L117] EXPR (((((((var_1_1 == ((signed long int) ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))))) && ((var_1_1 < var_1_2) ? (var_1_3 == ((unsigned char) ((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5))))) : 1)) && (((var_1_2 ^ var_1_1) < -256) ? (var_1_6 == ((unsigned short int) (((((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) < 0 ) ? -((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) : ((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))))))) : ((var_1_5 <= 50) ? (var_1_6 == ((unsigned short int) var_1_3)) : 1))) && ((var_1_1 < (var_1_5 % ((((32) > (var_1_9)) ? (32) : (var_1_9))))) ? (var_1_8 == ((double) ((((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11))) - var_1_12) + (var_1_13 - var_1_14)))) : ((var_1_13 <= (var_1_14 + var_1_11)) ? (var_1_8 == ((double) var_1_12)) : 1))) && ((((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) > var_1_1) ? (var_1_15 == ((unsigned short int) ((((var_1_3) > ((var_1_5 + var_1_4))) ? (var_1_3) : ((var_1_5 + var_1_4)))))) : 1)) && (var_1_16 == ((signed char) (var_1_17 + (var_1_18 + ((((var_1_19) < 0 ) ? -(var_1_19) : (var_1_19)))))))) && (var_1_20 == ((unsigned short int) (((((var_1_5 + var_1_3)) > (var_1_4)) ? ((var_1_5 + var_1_3)) : (var_1_4)))))) && ((var_1_16 == ((var_1_2 * var_1_17) & (var_1_15 * var_1_18))) ? (var_1_21 == ((unsigned short int) (var_1_4 + 128))) : 1) [L117] EXPR (var_1_2 * var_1_17) & (var_1_15 * var_1_18) [L117] EXPR (((((((var_1_1 == ((signed long int) ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))))) && ((var_1_1 < var_1_2) ? (var_1_3 == ((unsigned char) ((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5))))) : 1)) && (((var_1_2 ^ var_1_1) < -256) ? (var_1_6 == ((unsigned short int) (((((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) < 0 ) ? -((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) : ((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))))))) : ((var_1_5 <= 50) ? (var_1_6 == ((unsigned short int) var_1_3)) : 1))) && ((var_1_1 < (var_1_5 % ((((32) > (var_1_9)) ? (32) : (var_1_9))))) ? (var_1_8 == ((double) ((((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11))) - var_1_12) + (var_1_13 - var_1_14)))) : ((var_1_13 <= (var_1_14 + var_1_11)) ? (var_1_8 == ((double) var_1_12)) : 1))) && ((((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) > var_1_1) ? (var_1_15 == ((unsigned short int) ((((var_1_3) > ((var_1_5 + var_1_4))) ? (var_1_3) : ((var_1_5 + var_1_4)))))) : 1)) && (var_1_16 == ((signed char) (var_1_17 + (var_1_18 + ((((var_1_19) < 0 ) ? -(var_1_19) : (var_1_19)))))))) && (var_1_20 == ((unsigned short int) (((((var_1_5 + var_1_3)) > (var_1_4)) ? ((var_1_5 + var_1_3)) : (var_1_4)))))) && ((var_1_16 == ((var_1_2 * var_1_17) & (var_1_15 * var_1_18))) ? (var_1_21 == ((unsigned short int) (var_1_4 + 128))) : 1) [L117-L118] return (((((((var_1_1 == ((signed long int) ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))))) && ((var_1_1 < var_1_2) ? (var_1_3 == ((unsigned char) ((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5))))) : 1)) && (((var_1_2 ^ var_1_1) < -256) ? (var_1_6 == ((unsigned short int) (((((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) < 0 ) ? -((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) : ((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))))))) : ((var_1_5 <= 50) ? (var_1_6 == ((unsigned short int) var_1_3)) : 1))) && ((var_1_1 < (var_1_5 % ((((32) > (var_1_9)) ? (32) : (var_1_9))))) ? (var_1_8 == ((double) ((((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11))) - var_1_12) + (var_1_13 - var_1_14)))) : ((var_1_13 <= (var_1_14 + var_1_11)) ? (var_1_8 == ((double) var_1_12)) : 1))) && ((((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) > var_1_1) ? (var_1_15 == ((unsigned short int) ((((var_1_3) > ((var_1_5 + var_1_4))) ? (var_1_3) : ((var_1_5 + var_1_4)))))) : 1)) && (var_1_16 == ((signed char) (var_1_17 + (var_1_18 + ((((var_1_19) < 0 ) ? -(var_1_19) : (var_1_19)))))))) && (var_1_20 == ((unsigned short int) (((((var_1_5 + var_1_3)) > (var_1_4)) ? ((var_1_5 + var_1_3)) : (var_1_4)))))) && ((var_1_16 == ((var_1_2 * var_1_17) & (var_1_15 * var_1_18))) ? (var_1_21 == ((unsigned short int) (var_1_4 + 128))) : 1) ; [L127] RET, EXPR property() [L127] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=64, var_1_16=62, var_1_17=31, var_1_18=1, var_1_19=30, var_1_1=2, var_1_20=64, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=32831, var_1_7=32767, var_1_8=4, var_1_9=32] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=64, var_1_16=62, var_1_17=31, var_1_18=1, var_1_19=30, var_1_1=2, var_1_20=64, var_1_21=0, var_1_2=-2, var_1_3=64, var_1_4=64, var_1_5=0, var_1_6=32831, var_1_7=32767, var_1_8=4, var_1_9=32] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 22, 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=44occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 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 05:24:15,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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_0771a242-c2f4-46b0-9c6e-bb156b109477/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 2015d37ef3c12f799914a1d5573231d07895302eda54efaaedb57c9454a76b5a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:24:17,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:24:17,790 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:24:17,798 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:24:17,799 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:24:17,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:24:17,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:24:17,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:24:17,846 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:24:17,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:24:17,852 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:24:17,852 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:24:17,853 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:24:17,854 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:24:17,855 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:24:17,855 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:24:17,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:24:17,857 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:24:17,857 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:24:17,858 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:24:17,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:24:17,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:24:17,860 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:24:17,860 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:24:17,860 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:24:17,861 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:24:17,861 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:24:17,862 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:24:17,862 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:24:17,863 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:24:17,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:24:17,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:24:17,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:24:17,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:17,865 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:24:17,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:24:17,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:24:17,866 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:24:17,866 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:24:17,867 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:24:17,868 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:24:17,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:24:17,868 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_0771a242-c2f4-46b0-9c6e-bb156b109477/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2015d37ef3c12f799914a1d5573231d07895302eda54efaaedb57c9454a76b5a [2023-11-19 05:24:18,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:24:18,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:24:18,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:24:18,308 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:24:18,310 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:24:18,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i [2023-11-19 05:24:21,442 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:24:21,744 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:24:21,744 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i [2023-11-19 05:24:21,754 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/data/bdb9158e0/3b2de0b9026a4e4b98d09fbe9f3bd0bc/FLAG15416322a [2023-11-19 05:24:21,774 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/data/bdb9158e0/3b2de0b9026a4e4b98d09fbe9f3bd0bc [2023-11-19 05:24:21,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:24:21,779 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:24:21,780 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:21,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:24:21,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:24:21,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:21" (1/1) ... [2023-11-19 05:24:21,789 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a026a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:21, skipping insertion in model container [2023-11-19 05:24:21,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:21" (1/1) ... [2023-11-19 05:24:21,836 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:24:21,992 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_0771a242-c2f4-46b0-9c6e-bb156b109477/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i[917,930] [2023-11-19 05:24:22,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:22,107 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:24:22,126 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_0771a242-c2f4-46b0-9c6e-bb156b109477/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i[917,930] [2023-11-19 05:24:22,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:22,225 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:24:22,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:22 WrapperNode [2023-11-19 05:24:22,226 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:22,227 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:22,228 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:24:22,228 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:24:22,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:22" (1/1) ... [2023-11-19 05:24:22,261 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:22" (1/1) ... [2023-11-19 05:24:22,307 INFO L138 Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 137 [2023-11-19 05:24:22,307 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:22,308 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:24:22,308 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:24:22,308 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:24:22,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:22" (1/1) ... [2023-11-19 05:24:22,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:22" (1/1) ... [2023-11-19 05:24:22,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:22" (1/1) ... [2023-11-19 05:24:22,345 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:22" (1/1) ... [2023-11-19 05:24:22,372 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:22" (1/1) ... [2023-11-19 05:24:22,376 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:22" (1/1) ... [2023-11-19 05:24:22,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:22" (1/1) ... [2023-11-19 05:24:22,399 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:22" (1/1) ... [2023-11-19 05:24:22,403 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:24:22,404 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:24:22,404 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:24:22,404 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:24:22,405 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:22" (1/1) ... [2023-11-19 05:24:22,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:22,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:22,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:24:22,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:24:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:24:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:24:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:24:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:24:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:24:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:24:22,617 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:24:22,619 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:24:27,361 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:24:27,369 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:24:27,369 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:24:27,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:27 BoogieIcfgContainer [2023-11-19 05:24:27,373 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:24:27,376 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:24:27,376 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:24:27,379 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:24:27,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:24:21" (1/3) ... [2023-11-19 05:24:27,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f45838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:27, skipping insertion in model container [2023-11-19 05:24:27,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:22" (2/3) ... [2023-11-19 05:24:27,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f45838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:27, skipping insertion in model container [2023-11-19 05:24:27,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:27" (3/3) ... [2023-11-19 05:24:27,382 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-78.i [2023-11-19 05:24:27,401 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:24:27,401 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:24:27,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:24:27,458 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;@2fdf75cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:24:27,459 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:24:27,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 39 states have internal predecessors, (50), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 05:24:27,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-19 05:24:27,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:27,479 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:27,480 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:27,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:27,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1967860872, now seen corresponding path program 1 times [2023-11-19 05:24:27,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:27,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194052523] [2023-11-19 05:24:27,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:27,501 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 05:24:27,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:27,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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 05:24:27,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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 05:24:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:28,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:24:28,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:28,268 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2023-11-19 05:24:28,268 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:24:28,269 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:24:28,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194052523] [2023-11-19 05:24:28,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194052523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:28,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:28,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:24:28,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042609941] [2023-11-19 05:24:28,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:28,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:24:28,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:24:28,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:24:28,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:24:28,309 INFO L87 Difference]: Start difference. First operand has 63 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 39 states have internal predecessors, (50), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-19 05:24:28,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:28,340 INFO L93 Difference]: Finished difference Result 119 states and 204 transitions. [2023-11-19 05:24:28,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:24:28,345 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 139 [2023-11-19 05:24:28,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:28,356 INFO L225 Difference]: With dead ends: 119 [2023-11-19 05:24:28,356 INFO L226 Difference]: Without dead ends: 59 [2023-11-19 05:24:28,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:24:28,363 INFO L413 NwaCegarLoop]: 87 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, 87 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 05:24:28,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:24:28,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-19 05:24:28,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-19 05:24:28,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 05:24:28,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 87 transitions. [2023-11-19 05:24:28,412 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 87 transitions. Word has length 139 [2023-11-19 05:24:28,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:28,413 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 87 transitions. [2023-11-19 05:24:28,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-19 05:24:28,414 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 87 transitions. [2023-11-19 05:24:28,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-19 05:24:28,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:28,417 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:28,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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 05:24:28,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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 05:24:28,630 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:28,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:28,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1454046484, now seen corresponding path program 1 times [2023-11-19 05:24:28,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:28,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488094995] [2023-11-19 05:24:28,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:28,633 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 05:24:28,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:28,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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 05:24:28,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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 05:24:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:29,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:24:29,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:29,370 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-19 05:24:29,371 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:24:29,371 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:24:29,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488094995] [2023-11-19 05:24:29,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488094995] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:29,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:29,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:24:29,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270716073] [2023-11-19 05:24:29,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:29,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:24:29,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:24:29,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:24:29,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:29,376 INFO L87 Difference]: Start difference. First operand 59 states and 87 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-19 05:24:31,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:24:33,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:24:33,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:33,642 INFO L93 Difference]: Finished difference Result 115 states and 171 transitions. [2023-11-19 05:24:33,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:24:33,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 139 [2023-11-19 05:24:33,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:33,675 INFO L225 Difference]: With dead ends: 115 [2023-11-19 05:24:33,675 INFO L226 Difference]: Without dead ends: 59 [2023-11-19 05:24:33,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:33,678 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 15 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:33,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 142 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-11-19 05:24:33,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-19 05:24:33,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-19 05:24:33,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 35 states have (on average 1.2) internal successors, (42), 35 states have internal predecessors, (42), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 05:24:33,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2023-11-19 05:24:33,692 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 86 transitions. Word has length 139 [2023-11-19 05:24:33,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:33,694 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 86 transitions. [2023-11-19 05:24:33,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-19 05:24:33,695 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 86 transitions. [2023-11-19 05:24:33,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-19 05:24:33,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:33,697 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:33,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:24:33,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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 05:24:33,911 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:33,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:33,912 INFO L85 PathProgramCache]: Analyzing trace with hash -752981906, now seen corresponding path program 1 times [2023-11-19 05:24:33,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:33,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189772364] [2023-11-19 05:24:33,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:33,913 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 05:24:33,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:33,916 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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 05:24:33,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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 (4)] Waiting until timeout for monitored process [2023-11-19 05:24:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:34,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:24:34,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:35,016 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-19 05:24:35,016 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:24:35,017 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:24:35,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189772364] [2023-11-19 05:24:35,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1189772364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:35,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:35,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 05:24:35,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800400735] [2023-11-19 05:24:35,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:35,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:24:35,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:24:35,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:24:35,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:24:35,021 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-19 05:24:38,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-19 05:24:39,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-19 05:24:41,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-19 05:24:43,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-19 05:24:46,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-19 05:24:48,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-19 05:24:49,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:49,246 INFO L93 Difference]: Finished difference Result 169 states and 248 transitions. [2023-11-19 05:24:49,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 05:24:49,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 139 [2023-11-19 05:24:49,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:49,250 INFO L225 Difference]: With dead ends: 169 [2023-11-19 05:24:49,250 INFO L226 Difference]: Without dead ends: 113 [2023-11-19 05:24:49,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:24:49,253 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 151 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:49,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 378 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 5 Unknown, 0 Unchecked, 13.7s Time] [2023-11-19 05:24:49,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-19 05:24:49,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 62. [2023-11-19 05:24:49,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 38 states have internal predecessors, (46), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 05:24:49,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2023-11-19 05:24:49,270 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 90 transitions. Word has length 139 [2023-11-19 05:24:49,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:49,271 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 90 transitions. [2023-11-19 05:24:49,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-19 05:24:49,272 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2023-11-19 05:24:49,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-19 05:24:49,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:49,275 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:49,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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 (4)] Ended with exit code 0 [2023-11-19 05:24:49,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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 05:24:49,487 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:49,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:49,488 INFO L85 PathProgramCache]: Analyzing trace with hash -624155683, now seen corresponding path program 1 times [2023-11-19 05:24:49,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:49,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870730346] [2023-11-19 05:24:49,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:49,489 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 05:24:49,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:49,491 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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 05:24:49,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0771a242-c2f4-46b0-9c6e-bb156b109477/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 05:24:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:50,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-19 05:24:50,114 INFO L285 TraceCheckSpWp]: Computing forward predicates...