./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a107373962cca35af7d179f02239e8e00f5e366c836fd26959756f328d1ec34a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:23:17,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:23:17,889 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:23:17,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:23:17,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:23:17,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:23:17,941 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:23:17,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:23:17,943 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:23:17,950 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:23:17,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:23:17,951 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:23:17,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:23:17,954 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:23:17,954 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:23:17,955 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:23:17,955 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:23:17,956 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:23:17,956 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:23:17,957 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:23:17,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:23:17,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:23:17,959 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:23:17,959 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:23:17,960 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:23:17,960 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:23:17,960 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:23:17,961 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:23:17,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:23:17,962 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:23:17,964 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:23:17,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:17,964 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:23:17,964 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:23:17,965 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:23:17,965 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:23:17,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:23:17,965 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:23:17,966 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:23:17,966 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:23:17,966 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:23:17,967 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:23:17,967 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a107373962cca35af7d179f02239e8e00f5e366c836fd26959756f328d1ec34a [2023-11-21 22:23:18,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:23:18,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:23:18,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:23:18,340 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:23:18,340 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:23:18,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i [2023-11-21 22:23:21,401 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:23:21,678 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:23:21,680 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i [2023-11-21 22:23:21,690 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/data/7efa81703/48108cad16a740dcbf363c7e04cfa33a/FLAGa984e7fcf [2023-11-21 22:23:21,707 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/data/7efa81703/48108cad16a740dcbf363c7e04cfa33a [2023-11-21 22:23:21,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:23:21,714 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:23:21,718 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:21,718 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:23:21,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:23:21,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2945a9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21, skipping insertion in model container [2023-11-21 22:23:21,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,757 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:23:21,952 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_46df076b-1638-4249-8676-e4371e33b97b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i[915,928] [2023-11-21 22:23:21,981 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:21,998 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:23:22,009 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_46df076b-1638-4249-8676-e4371e33b97b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i[915,928] [2023-11-21 22:23:22,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:22,040 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:23:22,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:22 WrapperNode [2023-11-21 22:23:22,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:22,042 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:22,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:23:22,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:23:22,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:22" (1/1) ... [2023-11-21 22:23:22,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:22" (1/1) ... [2023-11-21 22:23:22,096 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 74 [2023-11-21 22:23:22,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:22,097 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:23:22,098 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:23:22,098 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:23:22,110 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:22" (1/1) ... [2023-11-21 22:23:22,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:22" (1/1) ... [2023-11-21 22:23:22,112 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:22" (1/1) ... [2023-11-21 22:23:22,123 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:23:22,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:22" (1/1) ... [2023-11-21 22:23:22,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:22" (1/1) ... [2023-11-21 22:23:22,129 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:22" (1/1) ... [2023-11-21 22:23:22,133 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:22" (1/1) ... [2023-11-21 22:23:22,135 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:22" (1/1) ... [2023-11-21 22:23:22,136 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:22" (1/1) ... [2023-11-21 22:23:22,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:23:22,139 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:23:22,139 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:23:22,140 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:23:22,141 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:22" (1/1) ... [2023-11-21 22:23:22,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:22,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:22,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:23:22,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:23:22,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:23:22,217 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:23:22,217 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:23:22,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:23:22,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:23:22,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:23:22,289 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:23:22,291 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:23:22,487 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:23:22,576 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:23:22,576 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:23:22,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:22 BoogieIcfgContainer [2023-11-21 22:23:22,578 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:23:22,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:23:22,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:23:22,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:23:22,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:23:21" (1/3) ... [2023-11-21 22:23:22,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45aa1d83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:22, skipping insertion in model container [2023-11-21 22:23:22,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:22" (2/3) ... [2023-11-21 22:23:22,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45aa1d83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:22, skipping insertion in model container [2023-11-21 22:23:22,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:22" (3/3) ... [2023-11-21 22:23:22,590 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-54.i [2023-11-21 22:23:22,613 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:23:22,614 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:23:22,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:23:22,703 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=PETRI_NET, 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;@5d4b18ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:23:22,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:23:22,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-21 22:23:22,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-21 22:23:22,742 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:22,743 INFO L195 NwaCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:22,743 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:23:22,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:22,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1435549919, now seen corresponding path program 1 times [2023-11-21 22:23:22,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:22,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240002526] [2023-11-21 22:23:22,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:22,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:23:22,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:23:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:23:23,087 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:23:23,089 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:23:23,090 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:23:23,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:23:23,102 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:23:23,107 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:23:23,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:23:23 BoogieIcfgContainer [2023-11-21 22:23:23,184 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:23:23,186 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:23:23,187 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:23:23,187 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:23:23,188 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:22" (3/4) ... [2023-11-21 22:23:23,190 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:23:23,191 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:23:23,192 INFO L158 Benchmark]: Toolchain (without parser) took 1478.43ms. Allocated memory was 146.8MB in the beginning and 199.2MB in the end (delta: 52.4MB). Free memory was 99.9MB in the beginning and 155.8MB in the end (delta: -56.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:23:23,193 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 146.8MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:23:23,195 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.93ms. Allocated memory is still 146.8MB. Free memory was 99.9MB in the beginning and 88.4MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:23:23,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.11ms. Allocated memory is still 146.8MB. Free memory was 88.4MB in the beginning and 86.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:23:23,197 INFO L158 Benchmark]: Boogie Preprocessor took 41.00ms. Allocated memory is still 146.8MB. Free memory was 86.7MB in the beginning and 85.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:23:23,198 INFO L158 Benchmark]: RCFGBuilder took 439.35ms. Allocated memory is still 146.8MB. Free memory was 84.7MB in the beginning and 70.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 22:23:23,199 INFO L158 Benchmark]: TraceAbstraction took 602.05ms. Allocated memory was 146.8MB in the beginning and 199.2MB in the end (delta: 52.4MB). Free memory was 69.1MB in the beginning and 155.8MB in the end (delta: -86.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:23:23,200 INFO L158 Benchmark]: Witness Printer took 5.02ms. Allocated memory is still 199.2MB. Free memory was 155.8MB in the beginning and 155.8MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:23:23,203 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 146.8MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.93ms. Allocated memory is still 146.8MB. Free memory was 99.9MB in the beginning and 88.4MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.11ms. Allocated memory is still 146.8MB. Free memory was 88.4MB in the beginning and 86.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.00ms. Allocated memory is still 146.8MB. Free memory was 86.7MB in the beginning and 85.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.35ms. Allocated memory is still 146.8MB. Free memory was 84.7MB in the beginning and 70.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 602.05ms. Allocated memory was 146.8MB in the beginning and 199.2MB in the end (delta: 52.4MB). Free memory was 69.1MB in the beginning and 155.8MB in the end (delta: -86.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.02ms. Allocated memory is still 199.2MB. Free memory was 155.8MB in the beginning and 155.8MB in the end (delta: 2.7kB). 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 37, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 999.25; [L23] float var_1_5 = 63.875; [L24] float var_1_6 = 25.05; [L25] signed long int var_1_7 = -4; [L26] float var_1_8 = 25.2; [L27] signed long int var_1_9 = 2; [L28] signed long int var_1_10 = 256; [L29] signed long int last_1_var_1_7 = -4; [L66] isInitial = 1 [L67] FCALL initially() [L68] COND TRUE 1 [L69] CALL updateLastVariables() [L59] last_1_var_1_7 = var_1_7 [L69] RET updateLastVariables() [L70] CALL updateVariables() [L44] var_1_5 = __VERIFIER_nondet_float() [L45] CALL assume_abort_if_not((var_1_5 >= 0.0F && 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_7=-4, var_1_10=256, var_1_1=3997/4, var_1_6=501/20, var_1_7=-4, var_1_8=126/5, var_1_9=2] [L20] COND FALSE !(!cond) [L45] RET assume_abort_if_not((var_1_5 >= 0.0F && 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_7=-4, var_1_10=256, var_1_1=3997/4, var_1_6=501/20, var_1_7=-4, var_1_8=126/5, var_1_9=2] [L46] var_1_6 = __VERIFIER_nondet_float() [L47] CALL assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_6=1073741829, var_1_7=-4, var_1_8=126/5, var_1_9=2] [L20] COND FALSE !(!cond) [L47] RET assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_6=1073741829, var_1_7=-4, var_1_8=126/5, var_1_9=2] [L48] var_1_8 = __VERIFIER_nondet_float() [L49] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_6=1073741829, var_1_7=-4, var_1_8=1073741828, var_1_9=2] [L20] COND FALSE !(!cond) [L49] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_6=1073741829, var_1_7=-4, var_1_8=1073741828, var_1_9=2] [L50] CALL assume_abort_if_not(var_1_8 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_6=1073741829, var_1_7=-4, var_1_8=1073741828, var_1_9=2] [L20] COND FALSE !(!cond) [L50] RET assume_abort_if_not(var_1_8 != 0.0F) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_6=1073741829, var_1_7=-4, var_1_8=1073741828, var_1_9=2] [L51] var_1_9 = __VERIFIER_nondet_long() [L52] CALL assume_abort_if_not(var_1_9 >= -1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_6=1073741829, var_1_7=-4, var_1_8=1073741828, var_1_9=1073741823] [L20] COND FALSE !(!cond) [L52] RET assume_abort_if_not(var_1_9 >= -1073741823) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_6=1073741829, var_1_7=-4, var_1_8=1073741828, var_1_9=1073741823] [L53] CALL assume_abort_if_not(var_1_9 <= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_6=1073741829, var_1_7=-4, var_1_8=1073741828, var_1_9=1073741823] [L20] COND FALSE !(!cond) [L53] RET assume_abort_if_not(var_1_9 <= 1073741823) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=256, var_1_1=3997/4, var_1_6=1073741829, var_1_7=-4, var_1_8=1073741828, var_1_9=1073741823] [L54] var_1_10 = __VERIFIER_nondet_long() [L55] CALL assume_abort_if_not(var_1_10 >= -1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=-1073741772, var_1_1=3997/4, var_1_6=1073741829, var_1_7=-4, var_1_8=1073741828, var_1_9=1073741823] [L20] COND FALSE !(!cond) [L55] RET assume_abort_if_not(var_1_10 >= -1073741823) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=-1073741772, var_1_1=3997/4, var_1_6=1073741829, var_1_7=-4, var_1_8=1073741828, var_1_9=1073741823] [L56] CALL assume_abort_if_not(var_1_10 <= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=-4, var_1_10=-1073741772, var_1_1=3997/4, var_1_6=1073741829, var_1_7=-4, var_1_8=1073741828, var_1_9=1073741823] [L20] COND FALSE !(!cond) [L56] RET assume_abort_if_not(var_1_10 <= 1073741823) VAL [isInitial=1, last_1_var_1_7=-4, var_1_10=-1073741772, var_1_1=3997/4, var_1_6=1073741829, var_1_7=-4, var_1_8=1073741828, var_1_9=1073741823] [L70] RET updateVariables() [L71] CALL step() [L33] signed long int stepLocal_0 = last_1_var_1_7; [L34] COND FALSE !(last_1_var_1_7 < stepLocal_0) [L37] COND FALSE !((((((var_1_5 / var_1_8)) > (var_1_6)) ? ((var_1_5 / var_1_8)) : (var_1_6))) == var_1_1) [L40] var_1_7 = 50 [L71] RET step() [L72] CALL, EXPR property() [L62-L63] return ((last_1_var_1_7 < last_1_var_1_7) ? (var_1_1 == ((float) (var_1_5 - var_1_6))) : 1) && (((((((var_1_5 / var_1_8)) > (var_1_6)) ? ((var_1_5 / var_1_8)) : (var_1_6))) == var_1_1) ? (var_1_7 == ((signed long int) (var_1_9 + var_1_10))) : (var_1_7 == ((signed long int) 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_7=-4, var_1_10=-1073741772, var_1_1=3997/4, var_1_6=1073741829, var_1_7=50, var_1_8=1073741828, var_1_9=1073741823] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_7=-4, var_1_10=-1073741772, var_1_1=3997/4, var_1_6=1073741829, var_1_7=50, var_1_8=1073741828, var_1_9=1073741823] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 8, 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=22occurred 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, 33 NumberOfCodeBlocks, 33 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 [2023-11-21 22:23:23,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a107373962cca35af7d179f02239e8e00f5e366c836fd26959756f328d1ec34a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:23:25,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:23:26,048 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:23:26,057 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:23:26,058 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:23:26,087 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:23:26,088 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:23:26,088 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:23:26,089 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:23:26,090 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:23:26,090 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:23:26,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:23:26,091 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:23:26,092 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:23:26,093 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:23:26,093 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:23:26,094 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:23:26,094 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:23:26,095 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:23:26,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:23:26,096 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:23:26,096 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:23:26,097 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:23:26,097 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:23:26,098 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:23:26,098 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:23:26,098 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:23:26,099 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:23:26,099 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:23:26,100 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:23:26,100 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:23:26,100 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:23:26,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:23:26,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:26,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:23:26,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:23:26,102 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:23:26,103 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:23:26,103 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:23:26,103 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:23:26,103 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:23:26,104 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:23:26,104 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:23:26,104 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:23:26,104 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:23:26,105 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a107373962cca35af7d179f02239e8e00f5e366c836fd26959756f328d1ec34a [2023-11-21 22:23:26,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:23:26,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:23:26,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:23:26,574 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:23:26,574 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:23:26,576 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i [2023-11-21 22:23:29,744 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:23:30,082 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:23:30,082 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i [2023-11-21 22:23:30,093 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/data/47e9c503e/07a4c22f404042c7b4bff96fe80b2594/FLAGc3c074881 [2023-11-21 22:23:30,112 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/data/47e9c503e/07a4c22f404042c7b4bff96fe80b2594 [2023-11-21 22:23:30,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:23:30,125 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:23:30,128 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:30,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:23:30,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:23:30,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:30" (1/1) ... [2023-11-21 22:23:30,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb59593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:30, skipping insertion in model container [2023-11-21 22:23:30,136 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:30" (1/1) ... [2023-11-21 22:23:30,167 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:23:30,386 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_46df076b-1638-4249-8676-e4371e33b97b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i[915,928] [2023-11-21 22:23:30,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:30,462 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:23:30,484 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_46df076b-1638-4249-8676-e4371e33b97b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-54.i[915,928] [2023-11-21 22:23:30,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:30,534 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:23:30,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:30 WrapperNode [2023-11-21 22:23:30,535 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:30,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:30,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:23:30,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:23:30,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:30" (1/1) ... [2023-11-21 22:23:30,569 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:30" (1/1) ... [2023-11-21 22:23:30,608 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 72 [2023-11-21 22:23:30,608 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:30,609 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:23:30,609 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:23:30,609 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:23:30,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:30" (1/1) ... [2023-11-21 22:23:30,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:30" (1/1) ... [2023-11-21 22:23:30,633 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:30" (1/1) ... [2023-11-21 22:23:30,653 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:23:30,653 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:30" (1/1) ... [2023-11-21 22:23:30,654 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:30" (1/1) ... [2023-11-21 22:23:30,661 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:30" (1/1) ... [2023-11-21 22:23:30,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:30" (1/1) ... [2023-11-21 22:23:30,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:30" (1/1) ... [2023-11-21 22:23:30,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:30" (1/1) ... [2023-11-21 22:23:30,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:23:30,686 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:23:30,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:23:30,686 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:23:30,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:30" (1/1) ... [2023-11-21 22:23:30,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:30,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:30,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:23:30,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:23:30,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:23:30,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:23:30,784 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:23:30,785 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:23:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:23:30,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:23:30,877 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:23:30,880 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:23:34,133 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:23:34,289 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:23:34,290 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:23:34,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:34 BoogieIcfgContainer [2023-11-21 22:23:34,291 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:23:34,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:23:34,294 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:23:34,297 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:23:34,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:23:30" (1/3) ... [2023-11-21 22:23:34,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4406c463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:34, skipping insertion in model container [2023-11-21 22:23:34,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:30" (2/3) ... [2023-11-21 22:23:34,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4406c463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:34, skipping insertion in model container [2023-11-21 22:23:34,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:34" (3/3) ... [2023-11-21 22:23:34,309 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-54.i [2023-11-21 22:23:34,331 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:23:34,331 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:23:34,406 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:23:34,415 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=PETRI_NET, 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;@755512ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:23:34,416 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:23:34,420 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-21 22:23:34,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-21 22:23:34,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:34,432 INFO L195 NwaCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:34,432 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:23:34,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:34,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1435549919, now seen corresponding path program 1 times [2023-11-21 22:23:34,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:23:34,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268842695] [2023-11-21 22:23:34,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:34,458 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 [2023-11-21 22:23:34,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:23:34,463 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:23:34,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46df076b-1638-4249-8676-e4371e33b97b/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:23:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:34,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:23:34,959 INFO L285 TraceCheckSpWp]: Computing forward predicates...