./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-76.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_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-76.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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 b286836f98ea28c8d142c9f806621ee4793004eb1aab8be8357681e891f9ba79 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:47:41,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:41,796 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:47:41,802 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:41,803 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:41,825 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:41,826 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:41,826 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:41,827 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:41,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:41,833 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:41,834 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:41,834 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:41,836 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:47:41,836 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:41,837 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:41,837 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:47:41,837 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:47:41,838 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:41,838 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:47:41,839 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:47:41,839 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:47:41,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:41,841 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:47:41,842 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:47:41,842 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:47:41,842 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:47:41,843 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:41,843 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:47:41,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:41,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:47:41,845 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:47:41,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:47:41,846 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:41,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:41,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:41,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:41,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:41,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:41,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:47:41,848 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:47:41,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:47:41,848 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:47:41,849 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:41,849 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:41,849 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_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b286836f98ea28c8d142c9f806621ee4793004eb1aab8be8357681e891f9ba79 [2023-11-12 00:47:42,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:47:42,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:47:42,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:47:42,201 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:47:42,202 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:47:42,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-76.i [2023-11-12 00:47:45,182 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:47:45,427 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:47:45,428 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-76.i [2023-11-12 00:47:45,438 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/data/ddeabbf9c/bf0200ffc2e148f490d0f61b59d08cbb/FLAG17b9467a6 [2023-11-12 00:47:45,459 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/data/ddeabbf9c/bf0200ffc2e148f490d0f61b59d08cbb [2023-11-12 00:47:45,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:47:45,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:47:45,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:45,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:47:45,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:47:45,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:45" (1/1) ... [2023-11-12 00:47:45,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5283f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:45, skipping insertion in model container [2023-11-12 00:47:45,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:45" (1/1) ... [2023-11-12 00:47:45,514 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:47:45,697 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_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-76.i[915,928] [2023-11-12 00:47:45,726 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:45,740 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:47:45,754 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_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-76.i[915,928] [2023-11-12 00:47:45,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:45,786 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:47:45,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:45 WrapperNode [2023-11-12 00:47:45,787 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:45,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:45,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:47:45,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:47:45,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:45" (1/1) ... [2023-11-12 00:47:45,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:45" (1/1) ... [2023-11-12 00:47:45,838 INFO L138 Inliner]: procedures = 26, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 73 [2023-11-12 00:47:45,839 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:45,840 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:47:45,840 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:47:45,840 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:47:45,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:45" (1/1) ... [2023-11-12 00:47:45,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:45" (1/1) ... [2023-11-12 00:47:45,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:45" (1/1) ... [2023-11-12 00:47:45,851 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:45" (1/1) ... [2023-11-12 00:47:45,857 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:45" (1/1) ... [2023-11-12 00:47:45,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:45" (1/1) ... [2023-11-12 00:47:45,862 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:45" (1/1) ... [2023-11-12 00:47:45,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:45" (1/1) ... [2023-11-12 00:47:45,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:47:45,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:47:45,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:47:45,867 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:47:45,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:45" (1/1) ... [2023-11-12 00:47:45,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:45,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:47:45,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:47:45,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:47:45,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:47:45,942 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:47:45,942 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:47:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:47:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:47:45,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:47:46,015 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:47:46,017 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:47:46,205 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:47:46,360 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:47:46,364 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:47:46,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:46 BoogieIcfgContainer [2023-11-12 00:47:46,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:47:46,373 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:47:46,374 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:47:46,378 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:47:46,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:47:45" (1/3) ... [2023-11-12 00:47:46,379 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e53c9f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:46, skipping insertion in model container [2023-11-12 00:47:46,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:45" (2/3) ... [2023-11-12 00:47:46,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e53c9f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:46, skipping insertion in model container [2023-11-12 00:47:46,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:46" (3/3) ... [2023-11-12 00:47:46,386 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-76.i [2023-11-12 00:47:46,411 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:47:46,411 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:47:46,478 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:47:46,488 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;@78b2855f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:47:46,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:47:46,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 00:47:46,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 00:47:46,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:46,508 INFO L195 NwaCegarLoop]: trace histogram [7, 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 00:47:46,509 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:47:46,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:46,513 INFO L85 PathProgramCache]: Analyzing trace with hash -808396407, now seen corresponding path program 1 times [2023-11-12 00:47:46,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:46,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755517249] [2023-11-12 00:47:46,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:46,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:47:46,837 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:47:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:47:46,966 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:47:46,968 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:47:46,970 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:47:46,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:47:46,978 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:47:46,982 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:47:47,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:47:47 BoogieIcfgContainer [2023-11-12 00:47:47,025 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:47:47,026 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:47:47,027 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:47:47,027 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:47:47,028 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:46" (3/4) ... [2023-11-12 00:47:47,030 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:47:47,032 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:47:47,033 INFO L158 Benchmark]: Toolchain (without parser) took 1566.05ms. Allocated memory was 132.1MB in the beginning and 188.7MB in the end (delta: 56.6MB). Free memory was 86.9MB in the beginning and 150.1MB in the end (delta: -63.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:47,034 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 132.1MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:47,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.39ms. Allocated memory is still 132.1MB. Free memory was 86.9MB in the beginning and 75.7MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:47:47,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.61ms. Allocated memory is still 132.1MB. Free memory was 75.7MB in the beginning and 73.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:47:47,036 INFO L158 Benchmark]: Boogie Preprocessor took 26.19ms. Allocated memory is still 132.1MB. Free memory was 73.7MB in the beginning and 72.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:47,037 INFO L158 Benchmark]: RCFGBuilder took 501.85ms. Allocated memory is still 132.1MB. Free memory was 72.3MB in the beginning and 56.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 00:47:47,038 INFO L158 Benchmark]: TraceAbstraction took 652.71ms. Allocated memory was 132.1MB in the beginning and 188.7MB in the end (delta: 56.6MB). Free memory was 55.3MB in the beginning and 150.1MB in the end (delta: -94.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:47,039 INFO L158 Benchmark]: Witness Printer took 5.76ms. Allocated memory is still 188.7MB. Free memory is still 150.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:47,042 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 132.1MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.39ms. Allocated memory is still 132.1MB. Free memory was 86.9MB in the beginning and 75.7MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.61ms. Allocated memory is still 132.1MB. Free memory was 75.7MB in the beginning and 73.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.19ms. Allocated memory is still 132.1MB. Free memory was 73.7MB in the beginning and 72.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 501.85ms. Allocated memory is still 132.1MB. Free memory was 72.3MB in the beginning and 56.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 652.71ms. Allocated memory was 132.1MB in the beginning and 188.7MB in the end (delta: 56.6MB). Free memory was 55.3MB in the beginning and 150.1MB in the end (delta: -94.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.76ms. Allocated memory is still 188.7MB. Free memory is still 150.1MB. 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 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 35. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 32.81; [L23] float var_1_3 = 256.25; [L24] float var_1_4 = 1.75; [L25] double var_1_5 = 10000000.5; [L26] unsigned char var_1_6 = 0; [L27] unsigned char var_1_8 = 0; [L28] unsigned char var_1_9 = 0; [L29] signed char var_1_10 = 5; [L30] double last_1_var_1_1 = 32.81; [L31] unsigned char last_1_var_1_6 = 0; [L66] isInitial = 1 [L67] FCALL initially() [L68] COND TRUE 1 [L69] CALL updateLastVariables() [L58] last_1_var_1_1 = var_1_1 [L59] last_1_var_1_6 = var_1_6 [L69] RET updateLastVariables() [L70] CALL updateVariables() [L44] var_1_3 = __VERIFIER_nondet_float() [L45] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=3281/100, last_1_var_1_6=0, var_1_10=5, var_1_1=3281/100, var_1_4=7/4, var_1_5=20000001/2, var_1_6=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L45] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=3281/100, last_1_var_1_6=0, var_1_10=5, var_1_1=3281/100, var_1_4=7/4, var_1_5=20000001/2, var_1_6=0, var_1_8=0, var_1_9=0] [L46] var_1_4 = __VERIFIER_nondet_float() [L47] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=3281/100, last_1_var_1_6=0, var_1_10=5, var_1_1=3281/100, var_1_4=10000005, var_1_5=20000001/2, var_1_6=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L47] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=3281/100, last_1_var_1_6=0, var_1_10=5, var_1_1=3281/100, var_1_4=10000005, var_1_5=20000001/2, var_1_6=0, var_1_8=0, var_1_9=0] [L48] var_1_5 = __VERIFIER_nondet_double() [L49] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=3281/100, last_1_var_1_6=0, var_1_10=5, var_1_1=3281/100, var_1_4=10000005, var_1_5=3281/100, var_1_6=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L49] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=3281/100, last_1_var_1_6=0, var_1_10=5, var_1_1=3281/100, var_1_4=10000005, var_1_5=3281/100, var_1_6=0, var_1_8=0, var_1_9=0] [L50] var_1_8 = __VERIFIER_nondet_uchar() [L51] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=3281/100, last_1_var_1_6=0, var_1_10=5, var_1_1=3281/100, var_1_4=10000005, var_1_5=3281/100, var_1_6=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L51] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_1=3281/100, last_1_var_1_6=0, var_1_10=5, var_1_1=3281/100, var_1_4=10000005, var_1_5=3281/100, var_1_6=0, var_1_8=0, var_1_9=0] [L52] CALL assume_abort_if_not(var_1_8 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=3281/100, last_1_var_1_6=0, var_1_10=5, var_1_1=3281/100, var_1_4=10000005, var_1_5=3281/100, var_1_6=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L52] RET assume_abort_if_not(var_1_8 <= 0) VAL [isInitial=1, last_1_var_1_1=3281/100, last_1_var_1_6=0, var_1_10=5, var_1_1=3281/100, var_1_4=10000005, var_1_5=3281/100, var_1_6=0, var_1_8=0, var_1_9=0] [L53] var_1_9 = __VERIFIER_nondet_uchar() [L54] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=3281/100, last_1_var_1_6=0, var_1_10=5, var_1_1=3281/100, var_1_4=10000005, var_1_5=3281/100, var_1_6=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L54] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_1=3281/100, last_1_var_1_6=0, var_1_10=5, var_1_1=3281/100, var_1_4=10000005, var_1_5=3281/100, var_1_6=0, var_1_8=0, var_1_9=0] [L55] CALL assume_abort_if_not(var_1_9 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=3281/100, last_1_var_1_6=0, var_1_10=5, var_1_1=3281/100, var_1_4=10000005, var_1_5=3281/100, var_1_6=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L55] RET assume_abort_if_not(var_1_9 <= 0) VAL [isInitial=1, last_1_var_1_1=3281/100, last_1_var_1_6=0, var_1_10=5, var_1_1=3281/100, var_1_4=10000005, var_1_5=3281/100, var_1_6=0, var_1_8=0, var_1_9=0] [L70] RET updateVariables() [L71] CALL step() [L35] COND FALSE !(last_1_var_1_1 < (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))) - 199.2f)) [L38] COND FALSE !(\read(last_1_var_1_6)) [L41] var_1_10 = -50 [L71] RET step() [L72] CALL, EXPR property() [L62-L63] return (((last_1_var_1_1 < (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))) - 199.2f)) ? (var_1_1 == ((double) var_1_5)) : 1) && (last_1_var_1_6 ? (var_1_6 == ((unsigned char) (! (var_1_8 || var_1_9)))) : 1)) && (var_1_10 == ((signed char) -50)) ; [L72] RET, EXPR property() [L72] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_1=3281/100, last_1_var_1_6=0, var_1_10=-50, var_1_1=3281/100, var_1_4=10000005, var_1_5=3281/100, var_1_6=0, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_1=3281/100, last_1_var_1_6=0, var_1_10=-50, var_1_1=3281/100, var_1_4=10000005, var_1_5=3281/100, var_1_6=0, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 7, 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=21occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 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 00:47:47,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-76.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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 b286836f98ea28c8d142c9f806621ee4793004eb1aab8be8357681e891f9ba79 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:47:49,788 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:49,904 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:47:49,912 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:49,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:49,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:49,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:49,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:49,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:49,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:49,983 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:49,984 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:49,984 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:49,986 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:49,987 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:49,987 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:49,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:49,989 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:47:49,990 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:47:49,991 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:47:49,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:49,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:47:49,993 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:49,993 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:47:49,994 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:47:49,994 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:47:49,995 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:47:49,995 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:47:49,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:47:49,996 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:49,998 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:49,998 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:47:49,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:49,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:49,999 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:50,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:50,000 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:47:50,000 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:47:50,001 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:47:50,002 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:47:50,002 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:50,003 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:50,003 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_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b286836f98ea28c8d142c9f806621ee4793004eb1aab8be8357681e891f9ba79 [2023-11-12 00:47:50,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:47:50,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:47:50,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:47:50,464 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:47:50,464 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:47:50,466 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-76.i [2023-11-12 00:47:53,644 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:47:53,935 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:47:53,936 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-76.i [2023-11-12 00:47:53,945 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/data/18fd4edb9/cc7900113f7a43a884ac6289d565a32a/FLAG94f106f0b [2023-11-12 00:47:53,963 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/data/18fd4edb9/cc7900113f7a43a884ac6289d565a32a [2023-11-12 00:47:53,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:47:53,973 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:47:53,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:53,979 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:47:53,985 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:47:53,986 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:53" (1/1) ... [2023-11-12 00:47:53,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35ffa7a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:53, skipping insertion in model container [2023-11-12 00:47:53,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:53" (1/1) ... [2023-11-12 00:47:54,018 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:47:54,191 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_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-76.i[915,928] [2023-11-12 00:47:54,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:54,238 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:47:54,263 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_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-76.i[915,928] [2023-11-12 00:47:54,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:54,328 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:47:54,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:54 WrapperNode [2023-11-12 00:47:54,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:54,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:54,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:47:54,331 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:47:54,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:54" (1/1) ... [2023-11-12 00:47:54,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:54" (1/1) ... [2023-11-12 00:47:54,404 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 73 [2023-11-12 00:47:54,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:54,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:47:54,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:47:54,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:47:54,417 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:54" (1/1) ... [2023-11-12 00:47:54,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:54" (1/1) ... [2023-11-12 00:47:54,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:54" (1/1) ... [2023-11-12 00:47:54,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:54" (1/1) ... [2023-11-12 00:47:54,449 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:54" (1/1) ... [2023-11-12 00:47:54,452 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:54" (1/1) ... [2023-11-12 00:47:54,455 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:54" (1/1) ... [2023-11-12 00:47:54,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:54" (1/1) ... [2023-11-12 00:47:54,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:47:54,461 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:47:54,461 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:47:54,461 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:47:54,462 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:54" (1/1) ... [2023-11-12 00:47:54,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:54,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:47:54,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:47:54,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:47:54,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:47:54,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:47:54,596 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:47:54,596 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:47:54,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:47:54,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:47:54,709 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:47:54,712 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:47:55,975 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:47:55,981 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:47:55,982 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:47:55,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:55 BoogieIcfgContainer [2023-11-12 00:47:55,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:47:55,987 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:47:55,987 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:47:55,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:47:55,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:47:53" (1/3) ... [2023-11-12 00:47:55,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ecab0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:55, skipping insertion in model container [2023-11-12 00:47:55,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:54" (2/3) ... [2023-11-12 00:47:55,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ecab0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:55, skipping insertion in model container [2023-11-12 00:47:55,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:55" (3/3) ... [2023-11-12 00:47:55,994 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-76.i [2023-11-12 00:47:56,015 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:47:56,015 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:47:56,061 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:47:56,068 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;@548eafe8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:47:56,069 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:47:56,073 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 00:47:56,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-12 00:47:56,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:56,085 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 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 00:47:56,086 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:47:56,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:56,092 INFO L85 PathProgramCache]: Analyzing trace with hash -621472132, now seen corresponding path program 1 times [2023-11-12 00:47:56,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:47:56,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834707178] [2023-11-12 00:47:56,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:56,109 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 00:47:56,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:47:56,111 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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 00:47:56,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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 00:47:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:56,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:47:56,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:47:56,410 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-12 00:47:56,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:47:56,411 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:47:56,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834707178] [2023-11-12 00:47:56,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834707178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:56,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:56,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:47:56,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117117998] [2023-11-12 00:47:56,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:56,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:47:56,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:47:56,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:47:56,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:47:56,466 INFO L87 Difference]: Start difference. First operand has 34 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 00:47:56,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:47:56,518 INFO L93 Difference]: Finished difference Result 61 states and 91 transitions. [2023-11-12 00:47:56,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:47:56,522 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2023-11-12 00:47:56,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:47:56,542 INFO L225 Difference]: With dead ends: 61 [2023-11-12 00:47:56,542 INFO L226 Difference]: Without dead ends: 30 [2023-11-12 00:47:56,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 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 00:47:56,550 INFO L413 NwaCegarLoop]: 38 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, 38 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 00:47:56,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:47:56,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-12 00:47:56,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-11-12 00:47:56,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 00:47:56,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2023-11-12 00:47:56,595 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 52 [2023-11-12 00:47:56,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:47:56,596 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2023-11-12 00:47:56,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 00:47:56,597 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2023-11-12 00:47:56,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-12 00:47:56,600 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:56,600 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 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 00:47:56,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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 00:47:56,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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 00:47:56,816 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:47:56,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:56,817 INFO L85 PathProgramCache]: Analyzing trace with hash 176339458, now seen corresponding path program 1 times [2023-11-12 00:47:56,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:47:56,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992458844] [2023-11-12 00:47:56,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:56,820 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 00:47:56,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:47:56,822 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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 00:47:56,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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 00:47:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:57,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:47:57,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:47:57,251 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-12 00:47:57,252 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:47:57,252 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:47:57,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992458844] [2023-11-12 00:47:57,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992458844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:57,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:57,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:47:57,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137428505] [2023-11-12 00:47:57,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:57,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:47:57,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:47:57,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:47:57,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:47:57,257 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 00:47:57,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:47:57,620 INFO L93 Difference]: Finished difference Result 57 states and 73 transitions. [2023-11-12 00:47:57,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:47:57,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 52 [2023-11-12 00:47:57,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:47:57,631 INFO L225 Difference]: With dead ends: 57 [2023-11-12 00:47:57,631 INFO L226 Difference]: Without dead ends: 30 [2023-11-12 00:47:57,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:47:57,634 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:47:57,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 34 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 00:47:57,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-12 00:47:57,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-11-12 00:47:57,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 00:47:57,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2023-11-12 00:47:57,645 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 52 [2023-11-12 00:47:57,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:47:57,647 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2023-11-12 00:47:57,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 00:47:57,648 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2023-11-12 00:47:57,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-12 00:47:57,650 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:57,650 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 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 00:47:57,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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)] Ended with exit code 0 [2023-11-12 00:47:57,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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 00:47:57,867 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:47:57,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:57,868 INFO L85 PathProgramCache]: Analyzing trace with hash 233597760, now seen corresponding path program 1 times [2023-11-12 00:47:57,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:47:57,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536275418] [2023-11-12 00:47:57,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:57,870 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 00:47:57,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:47:57,871 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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 00:47:57,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee9fb4d-ee9c-4bd4-a10c-d6a6d11922ce/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 (4)] Waiting until timeout for monitored process [2023-11-12 00:47:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:58,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 00:47:58,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:16,250 WARN L293 SmtUtils]: Spent 7.01s on a formula simplification that was a NOOP. DAG size: 24 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-12 00:48:49,581 WARN L293 SmtUtils]: Spent 11.26s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)