./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX --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 d49cb19ea73a8e7e65d41ce21711c83229aec8ad3b628b5fca5a19c20a6562dd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:47:24,016 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:24,114 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:47:24,122 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:24,123 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:24,186 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:24,189 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:24,190 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:24,191 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:24,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:24,197 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:24,198 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:24,199 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:24,200 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:47:24,201 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:24,201 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:24,202 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:47:24,202 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:47:24,204 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:24,205 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:47:24,206 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:47:24,206 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:47:24,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:24,208 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:47:24,209 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:47:24,209 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:47:24,210 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:47:24,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:24,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:47:24,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:24,212 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:47:24,213 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:47:24,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:47:24,221 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:24,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:24,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:24,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:24,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:24,222 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:24,223 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:47:24,223 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:47:24,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:47:24,224 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:47:24,224 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:24,225 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:24,225 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_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d49cb19ea73a8e7e65d41ce21711c83229aec8ad3b628b5fca5a19c20a6562dd [2023-11-12 00:47:24,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:47:24,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:47:24,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:47:24,635 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:47:24,636 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:47:24,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i [2023-11-12 00:47:27,685 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:47:27,980 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:47:27,981 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i [2023-11-12 00:47:27,991 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/data/a335e5fcb/06cde18bb0104020a37d6c15c1a74359/FLAG6974839fd [2023-11-12 00:47:28,023 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/data/a335e5fcb/06cde18bb0104020a37d6c15c1a74359 [2023-11-12 00:47:28,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:47:28,032 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:47:28,037 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:28,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:47:28,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:47:28,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:28" (1/1) ... [2023-11-12 00:47:28,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb82501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:28, skipping insertion in model container [2023-11-12 00:47:28,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:28" (1/1) ... [2023-11-12 00:47:28,090 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:47:28,237 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_358c3c15-b9a7-4946-bf64-cd8984c27d25/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i[915,928] [2023-11-12 00:47:28,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:28,296 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:47:28,310 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_358c3c15-b9a7-4946-bf64-cd8984c27d25/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i[915,928] [2023-11-12 00:47:28,332 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:28,350 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:47:28,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:28 WrapperNode [2023-11-12 00:47:28,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:28,352 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:28,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:47:28,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:47:28,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:28" (1/1) ... [2023-11-12 00:47:28,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:28" (1/1) ... [2023-11-12 00:47:28,404 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2023-11-12 00:47:28,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:28,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:47:28,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:47:28,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:47:28,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:28" (1/1) ... [2023-11-12 00:47:28,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:28" (1/1) ... [2023-11-12 00:47:28,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:28" (1/1) ... [2023-11-12 00:47:28,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:28" (1/1) ... [2023-11-12 00:47:28,426 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:28" (1/1) ... [2023-11-12 00:47:28,430 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:28" (1/1) ... [2023-11-12 00:47:28,432 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:28" (1/1) ... [2023-11-12 00:47:28,434 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:28" (1/1) ... [2023-11-12 00:47:28,437 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:47:28,438 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:47:28,438 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:47:28,439 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:47:28,440 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:28" (1/1) ... [2023-11-12 00:47:28,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:28,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:47:28,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:47:28,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:47:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:47:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:47:28,524 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:47:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:47:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:47:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:47:28,606 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:47:28,608 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:47:28,931 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:47:29,067 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:47:29,067 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:47:29,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:29 BoogieIcfgContainer [2023-11-12 00:47:29,070 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:47:29,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:47:29,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:47:29,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:47:29,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:47:28" (1/3) ... [2023-11-12 00:47:29,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d8f410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:29, skipping insertion in model container [2023-11-12 00:47:29,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:28" (2/3) ... [2023-11-12 00:47:29,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d8f410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:29, skipping insertion in model container [2023-11-12 00:47:29,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:29" (3/3) ... [2023-11-12 00:47:29,081 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-55.i [2023-11-12 00:47:29,102 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:47:29,102 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:47:29,160 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:47:29,168 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;@5782464, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:47:29,168 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:47:29,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-12 00:47:29,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-12 00:47:29,185 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:29,186 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:47:29,187 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:47:29,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:29,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1537665297, now seen corresponding path program 1 times [2023-11-12 00:47:29,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:29,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988553326] [2023-11-12 00:47:29,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:29,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:29,382 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:47:29,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [770846202] [2023-11-12 00:47:29,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:29,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:47:29,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:47:29,391 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:47:29,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:47:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:47:29,637 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:47:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:47:29,783 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:47:29,786 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:47:29,787 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:47:29,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:47:29,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:47:30,000 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:47:30,005 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:47:30,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:47:30 BoogieIcfgContainer [2023-11-12 00:47:30,084 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:47:30,085 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:47:30,085 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:47:30,085 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:47:30,086 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:29" (3/4) ... [2023-11-12 00:47:30,088 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:47:30,088 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:47:30,089 INFO L158 Benchmark]: Toolchain (without parser) took 2057.36ms. Allocated memory is still 163.6MB. Free memory was 134.1MB in the beginning and 81.4MB in the end (delta: 52.6MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2023-11-12 00:47:30,090 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory was 98.2MB in the beginning and 98.1MB in the end (delta: 133.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:30,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.20ms. Allocated memory is still 163.6MB. Free memory was 134.1MB in the beginning and 121.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:47:30,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.63ms. Allocated memory is still 163.6MB. Free memory was 121.4MB in the beginning and 119.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:47:30,092 INFO L158 Benchmark]: Boogie Preprocessor took 31.78ms. Allocated memory is still 163.6MB. Free memory was 119.4MB in the beginning and 118.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:30,092 INFO L158 Benchmark]: RCFGBuilder took 632.37ms. Allocated memory is still 163.6MB. Free memory was 118.1MB in the beginning and 113.7MB in the end (delta: 4.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:47:30,093 INFO L158 Benchmark]: TraceAbstraction took 1011.20ms. Allocated memory is still 163.6MB. Free memory was 112.9MB in the beginning and 82.2MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-12 00:47:30,094 INFO L158 Benchmark]: Witness Printer took 3.84ms. Allocated memory is still 163.6MB. Free memory was 82.2MB in the beginning and 81.4MB in the end (delta: 822.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:30,097 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory was 98.2MB in the beginning and 98.1MB in the end (delta: 133.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.20ms. Allocated memory is still 163.6MB. Free memory was 134.1MB in the beginning and 121.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.63ms. Allocated memory is still 163.6MB. Free memory was 121.4MB in the beginning and 119.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.78ms. Allocated memory is still 163.6MB. Free memory was 119.4MB in the beginning and 118.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 632.37ms. Allocated memory is still 163.6MB. Free memory was 118.1MB in the beginning and 113.7MB in the end (delta: 4.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1011.20ms. Allocated memory is still 163.6MB. Free memory was 112.9MB in the beginning and 82.2MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 3.84ms. Allocated memory is still 163.6MB. Free memory was 82.2MB in the beginning and 81.4MB in the end (delta: 822.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryArithmeticFLOAToperation at line 39. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 10; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_5 = 0; [L25] unsigned short int var_1_6 = 16; [L26] signed char var_1_7 = 25; [L27] unsigned short int var_1_8 = 5; [L28] unsigned short int var_1_9 = 1; [L29] signed char var_1_12 = 1; [L30] float var_1_13 = 127.75; [L31] float var_1_14 = 0.0; [L32] float var_1_15 = 255.7; [L33] float var_1_16 = 7.6; [L34] unsigned long int var_1_17 = 64; [L35] signed long int var_1_18 = 0; [L102] isInitial = 1 [L103] FCALL initially() [L104] COND TRUE 1 [L105] FCALL updateLastVariables() [L106] CALL updateVariables() [L68] var_1_2 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L70] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L71] var_1_5 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L73] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L74] var_1_6 = __VERIFIER_nondet_ushort() [L75] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=5, var_1_9=1] [L76] CALL assume_abort_if_not(var_1_6 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_6 <= 65534) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=5, var_1_9=1] [L77] var_1_8 = __VERIFIER_nondet_ushort() [L78] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L79] CALL assume_abort_if_not(var_1_8 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_8 <= 65535) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L80] CALL assume_abort_if_not(var_1_8 != 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_8 != 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L81] var_1_9 = __VERIFIER_nondet_ushort() [L82] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L83] CALL assume_abort_if_not(var_1_9 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_9 <= 65535) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L84] CALL assume_abort_if_not(var_1_9 != 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_9 != 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L85] var_1_12 = __VERIFIER_nondet_char() [L86] CALL assume_abort_if_not(var_1_12 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_12=126, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_12 >= -127) VAL [isInitial=1, var_1_12=126, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L87] CALL assume_abort_if_not(var_1_12 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_12=126, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_12 <= 126) VAL [isInitial=1, var_1_12=126, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L88] var_1_14 = __VERIFIER_nondet_float() [L89] CALL assume_abort_if_not((var_1_14 >= 4611686.018427382800e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=126, var_1_13=511/4, var_1_14=2, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not((var_1_14 >= 4611686.018427382800e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=126, var_1_13=511/4, var_1_14=2, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L90] var_1_15 = __VERIFIER_nondet_float() [L91] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=126, var_1_13=511/4, var_1_14=2, var_1_15=3, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=126, var_1_13=511/4, var_1_14=2, var_1_15=3, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L92] var_1_16 = __VERIFIER_nondet_float() [L93] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=126, var_1_13=511/4, var_1_14=2, var_1_15=3, var_1_16=4, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=126, var_1_13=511/4, var_1_14=2, var_1_15=3, var_1_16=4, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=3, var_1_9=1] [L106] RET updateVariables() [L107] CALL step() [L39] var_1_13 = ((var_1_14 - var_1_15) - var_1_16) [L40] var_1_17 = var_1_6 [L41] var_1_18 = var_1_9 [L42] unsigned short int stepLocal_3 = var_1_9; [L43] unsigned long int stepLocal_2 = var_1_17; [L44] COND FALSE !(stepLocal_2 <= ((var_1_17 / var_1_8) / var_1_9)) [L51] var_1_7 = var_1_12 [L53] signed char stepLocal_1 = var_1_7; [L54] unsigned char stepLocal_0 = var_1_7 >= var_1_7; [L55] COND FALSE !(\read(var_1_2)) [L64] var_1_1 = var_1_6 [L107] RET step() [L108] CALL, EXPR property() [L98-L99] return ((((var_1_2 ? (((var_1_7 >= var_1_7) && var_1_5) ? ((var_1_7 >= var_1_7) ? (var_1_1 == ((unsigned short int) 5)) : (var_1_1 == ((unsigned short int) var_1_6))) : 1) : (var_1_1 == ((unsigned short int) var_1_6))) && ((var_1_17 <= ((var_1_17 / var_1_8) / var_1_9)) ? ((var_1_9 == (var_1_18 * (~ var_1_18))) ? (var_1_7 == ((signed char) var_1_12)) : (var_1_7 == ((signed char) var_1_12))) : (var_1_7 == ((signed char) var_1_12)))) && (var_1_13 == ((float) ((var_1_14 - var_1_15) - var_1_16)))) && (var_1_17 == ((unsigned long int) var_1_6))) && (var_1_18 == ((signed long int) var_1_9)) ; [L108] RET, EXPR property() [L108] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_12=126, var_1_14=2, var_1_15=3, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=1, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=126, var_1_8=3, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_12=126, var_1_14=2, var_1_15=3, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=1, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=126, var_1_8=3, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 17, 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=35occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 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 [2023-11-12 00:47:30,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX --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 d49cb19ea73a8e7e65d41ce21711c83229aec8ad3b628b5fca5a19c20a6562dd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:47:32,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:33,023 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:47:33,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:33,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:33,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:33,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:33,080 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:33,081 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:33,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:33,087 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:33,087 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:33,088 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:33,090 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:33,090 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:33,091 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:33,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:33,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:47:33,093 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:47:33,093 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:47:33,094 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:33,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:47:33,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:33,096 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:47:33,096 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:47:33,097 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:47:33,097 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:47:33,098 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:47:33,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:47:33,099 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:33,100 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:33,100 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:47:33,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:33,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:33,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:33,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:33,102 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:47:33,103 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:47:33,103 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:47:33,104 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:47:33,104 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:33,105 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:33,105 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_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d49cb19ea73a8e7e65d41ce21711c83229aec8ad3b628b5fca5a19c20a6562dd [2023-11-12 00:47:33,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:47:33,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:47:33,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:47:33,576 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:47:33,577 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:47:33,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i [2023-11-12 00:47:36,769 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:47:37,081 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:47:37,083 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i [2023-11-12 00:47:37,094 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/data/240bf91a8/0de3df7c1870499c9e599830022405f5/FLAG957a530ea [2023-11-12 00:47:37,113 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/data/240bf91a8/0de3df7c1870499c9e599830022405f5 [2023-11-12 00:47:37,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:47:37,121 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:47:37,125 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:37,125 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:47:37,131 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:47:37,132 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:37" (1/1) ... [2023-11-12 00:47:37,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@258c7089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:37, skipping insertion in model container [2023-11-12 00:47:37,133 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:37" (1/1) ... [2023-11-12 00:47:37,177 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:47:37,356 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_358c3c15-b9a7-4946-bf64-cd8984c27d25/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i[915,928] [2023-11-12 00:47:37,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:37,455 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:47:37,472 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_358c3c15-b9a7-4946-bf64-cd8984c27d25/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-55.i[915,928] [2023-11-12 00:47:37,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:37,527 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:47:37,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:37 WrapperNode [2023-11-12 00:47:37,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:37,529 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:37,529 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:47:37,530 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:47:37,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:37" (1/1) ... [2023-11-12 00:47:37,562 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:37" (1/1) ... [2023-11-12 00:47:37,603 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2023-11-12 00:47:37,605 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:37,606 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:47:37,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:47:37,607 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:47:37,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:37" (1/1) ... [2023-11-12 00:47:37,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:37" (1/1) ... [2023-11-12 00:47:37,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:37" (1/1) ... [2023-11-12 00:47:37,640 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:37" (1/1) ... [2023-11-12 00:47:37,649 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:37" (1/1) ... [2023-11-12 00:47:37,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:37" (1/1) ... [2023-11-12 00:47:37,669 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:37" (1/1) ... [2023-11-12 00:47:37,671 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:37" (1/1) ... [2023-11-12 00:47:37,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:47:37,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:47:37,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:47:37,686 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:47:37,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:37" (1/1) ... [2023-11-12 00:47:37,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:37,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:47:37,737 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:47:37,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:47:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:47:37,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:47:37,786 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:47:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:47:37,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:47:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:47:37,877 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:47:37,879 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:47:38,957 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:47:38,968 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:47:38,969 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:47:38,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:38 BoogieIcfgContainer [2023-11-12 00:47:38,972 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:47:38,975 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:47:38,976 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:47:38,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:47:38,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:47:37" (1/3) ... [2023-11-12 00:47:38,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7242e4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:38, skipping insertion in model container [2023-11-12 00:47:38,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:37" (2/3) ... [2023-11-12 00:47:38,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7242e4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:38, skipping insertion in model container [2023-11-12 00:47:38,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:38" (3/3) ... [2023-11-12 00:47:38,986 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-55.i [2023-11-12 00:47:39,005 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:47:39,006 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:47:39,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:47:39,064 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;@17fef6ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:47:39,065 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:47:39,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-12 00:47:39,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-12 00:47:39,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:39,085 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:47:39,086 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:47:39,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:39,092 INFO L85 PathProgramCache]: Analyzing trace with hash -93781093, now seen corresponding path program 1 times [2023-11-12 00:47:39,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:47:39,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501272351] [2023-11-12 00:47:39,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:39,108 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 [2023-11-12 00:47:39,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:47:39,119 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:47:39,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:47:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:39,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:47:39,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:47:39,667 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2023-11-12 00:47:39,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:47:39,674 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:47:39,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501272351] [2023-11-12 00:47:39,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501272351] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:39,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:39,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:47:39,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435923488] [2023-11-12 00:47:39,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:39,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:47:39,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:47:39,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:47:39,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:47:39,730 INFO L87 Difference]: Start difference. First operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-12 00:47:39,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:47:39,783 INFO L93 Difference]: Finished difference Result 95 states and 161 transitions. [2023-11-12 00:47:39,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:47:39,786 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 106 [2023-11-12 00:47:39,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:47:39,795 INFO L225 Difference]: With dead ends: 95 [2023-11-12 00:47:39,795 INFO L226 Difference]: Without dead ends: 47 [2023-11-12 00:47:39,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:47:39,804 INFO L413 NwaCegarLoop]: 68 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, 68 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 [2023-11-12 00:47:39,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:47:39,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-12 00:47:39,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-12 00:47:39,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-12 00:47:39,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2023-11-12 00:47:39,865 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 106 [2023-11-12 00:47:39,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:47:39,866 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2023-11-12 00:47:39,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-12 00:47:39,867 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2023-11-12 00:47:39,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-12 00:47:39,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:39,872 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:47:39,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:47:40,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:47:40,090 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:47:40,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:40,091 INFO L85 PathProgramCache]: Analyzing trace with hash 807760285, now seen corresponding path program 1 times [2023-11-12 00:47:40,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:47:40,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692328600] [2023-11-12 00:47:40,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:40,093 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 [2023-11-12 00:47:40,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:47:40,095 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:47:40,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358c3c15-b9a7-4946-bf64-cd8984c27d25/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:47:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:40,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-12 00:47:40,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:47:54,071 WARN L293 SmtUtils]: Spent 5.61s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-12 00:48:07,797 WARN L293 SmtUtils]: Spent 5.85s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-12 00:48:30,046 WARN L293 SmtUtils]: Spent 6.13s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)