./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-32.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-32.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje --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 736d11fbaff9bd8217e7f35fe2915a40a2ccc3f0b056dd854b0369e62e08ee86 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:17:53,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:17:53,728 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 01:17:53,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:17:53,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:17:53,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:17:53,790 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:17:53,790 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:17:53,791 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:17:53,792 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:17:53,793 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:17:53,794 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:17:53,794 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:17:53,795 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:17:53,795 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:17:53,799 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:17:53,799 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:17:53,800 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:17:53,800 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:17:53,800 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:17:53,800 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:17:53,801 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:17:53,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:17:53,802 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:17:53,804 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:17:53,805 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:17:53,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:17:53,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:17:53,806 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:17:53,806 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:17:53,807 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:17:53,807 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:17:53,815 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:17:53,815 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:17:53,815 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:17:53,815 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:17:53,816 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:17:53,816 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:17:53,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:17:53,816 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:17:53,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:17:53,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:17:53,817 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:17:53,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:17:53,818 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:17:53,818 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:17:53,818 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:17:53,819 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_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 736d11fbaff9bd8217e7f35fe2915a40a2ccc3f0b056dd854b0369e62e08ee86 [2024-11-09 01:17:54,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:17:54,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:17:54,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:17:54,169 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:17:54,170 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:17:54,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-32.i Unable to find full path for "g++" [2024-11-09 01:17:56,224 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:17:56,432 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:17:56,433 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-32.i [2024-11-09 01:17:56,442 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/data/165a1811b/61428eed92864ee8bb653469c5b00878/FLAG117df220b [2024-11-09 01:17:56,804 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/data/165a1811b/61428eed92864ee8bb653469c5b00878 [2024-11-09 01:17:56,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:17:56,808 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:17:56,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:17:56,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:17:56,816 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:17:56,818 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:17:56" (1/1) ... [2024-11-09 01:17:56,819 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dccafc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:56, skipping insertion in model container [2024-11-09 01:17:56,820 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:17:56" (1/1) ... [2024-11-09 01:17:56,844 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:17:57,055 WARN L250 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_7e27b916-a365-483b-91c4-dcd563d80d06/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-32.i[915,928] [2024-11-09 01:17:57,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:17:57,119 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:17:57,133 WARN L250 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_7e27b916-a365-483b-91c4-dcd563d80d06/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-32.i[915,928] [2024-11-09 01:17:57,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:17:57,185 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:17:57,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:57 WrapperNode [2024-11-09 01:17:57,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:17:57,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:17:57,187 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:17:57,187 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:17:57,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:57" (1/1) ... [2024-11-09 01:17:57,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:57" (1/1) ... [2024-11-09 01:17:57,253 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 185 [2024-11-09 01:17:57,253 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:17:57,254 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:17:57,254 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:17:57,255 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:17:57,265 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:57" (1/1) ... [2024-11-09 01:17:57,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:57" (1/1) ... [2024-11-09 01:17:57,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:57" (1/1) ... [2024-11-09 01:17:57,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:57" (1/1) ... [2024-11-09 01:17:57,277 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:57" (1/1) ... [2024-11-09 01:17:57,286 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:57" (1/1) ... [2024-11-09 01:17:57,291 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:57" (1/1) ... [2024-11-09 01:17:57,294 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:57" (1/1) ... [2024-11-09 01:17:57,301 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:17:57,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:17:57,306 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:17:57,306 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:17:57,307 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:57" (1/1) ... [2024-11-09 01:17:57,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:17:57,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:17:57,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:17:57,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:17:57,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:17:57,388 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:17:57,389 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:17:57,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:17:57,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:17:57,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:17:57,512 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:17:57,517 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:17:58,033 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-11-09 01:17:58,034 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:17:58,342 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:17:58,342 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:17:58,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:17:58 BoogieIcfgContainer [2024-11-09 01:17:58,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:17:58,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:17:58,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:17:58,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:17:58,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:17:56" (1/3) ... [2024-11-09 01:17:58,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2827255e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:17:58, skipping insertion in model container [2024-11-09 01:17:58,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:57" (2/3) ... [2024-11-09 01:17:58,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2827255e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:17:58, skipping insertion in model container [2024-11-09 01:17:58,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:17:58" (3/3) ... [2024-11-09 01:17:58,357 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-32.i [2024-11-09 01:17:58,379 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:17:58,379 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:17:58,466 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:17:58,478 INFO L333 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, 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;@2f8b60a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:17:58,479 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:17:58,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:17:58,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 01:17:58,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:17:58,506 INFO L215 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:17:58,506 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:17:58,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:17:58,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1815321353, now seen corresponding path program 1 times [2024-11-09 01:17:58,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:17:58,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309286932] [2024-11-09 01:17:58,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:17:58,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:17:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:17:59,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [826483495] [2024-11-09 01:17:59,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:17:59,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:17:59,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:17:59,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:17:59,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:17:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 01:17:59,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 01:17:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 01:17:59,722 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 01:17:59,725 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 01:17:59,726 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 01:17:59,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 01:17:59,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 01:17:59,932 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 01:17:59,984 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 01:17:59,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 01:17:59 BoogieIcfgContainer [2024-11-09 01:17:59,987 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 01:17:59,988 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 01:17:59,988 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 01:17:59,988 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 01:17:59,989 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:17:58" (3/4) ... [2024-11-09 01:17:59,991 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 01:17:59,992 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 01:17:59,994 INFO L158 Benchmark]: Toolchain (without parser) took 3185.59ms. Allocated memory was 130.0MB in the beginning and 197.1MB in the end (delta: 67.1MB). Free memory was 66.4MB in the beginning and 108.3MB in the end (delta: -41.8MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2024-11-09 01:17:59,994 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:17:59,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.99ms. Allocated memory was 130.0MB in the beginning and 161.5MB in the end (delta: 31.5MB). Free memory was 66.3MB in the beginning and 120.8MB in the end (delta: -54.5MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2024-11-09 01:17:59,996 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.28ms. Allocated memory is still 161.5MB. Free memory was 120.8MB in the beginning and 117.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 01:17:59,996 INFO L158 Benchmark]: Boogie Preprocessor took 50.89ms. Allocated memory is still 161.5MB. Free memory was 117.3MB in the beginning and 115.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:17:59,997 INFO L158 Benchmark]: RCFGBuilder took 1037.55ms. Allocated memory is still 161.5MB. Free memory was 115.2MB in the beginning and 73.6MB in the end (delta: 41.6MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-09 01:17:59,997 INFO L158 Benchmark]: TraceAbstraction took 1641.62ms. Allocated memory was 161.5MB in the beginning and 197.1MB in the end (delta: 35.7MB). Free memory was 72.8MB in the beginning and 108.3MB in the end (delta: -35.5MB). Peak memory consumption was 997.2kB. Max. memory is 16.1GB. [2024-11-09 01:17:59,998 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 197.1MB. Free memory is still 108.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:18:00,001 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.99ms. Allocated memory was 130.0MB in the beginning and 161.5MB in the end (delta: 31.5MB). Free memory was 66.3MB in the beginning and 120.8MB in the end (delta: -54.5MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.28ms. Allocated memory is still 161.5MB. Free memory was 120.8MB in the beginning and 117.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.89ms. Allocated memory is still 161.5MB. Free memory was 117.3MB in the beginning and 115.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1037.55ms. Allocated memory is still 161.5MB. Free memory was 115.2MB in the beginning and 73.6MB in the end (delta: 41.6MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1641.62ms. Allocated memory was 161.5MB in the beginning and 197.1MB in the end (delta: 35.7MB). Free memory was 72.8MB in the beginning and 108.3MB in the end (delta: -35.5MB). Peak memory consumption was 997.2kB. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 197.1MB. Free memory is still 108.3MB. 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 shiftRight at line 53, overapproximation of shiftLeft at line 53, overapproximation of bitwiseOr at line 53, overapproximation of bitwiseAnd at line 42. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 0; [L23] unsigned short int var_1_3 = 128; [L24] unsigned short int var_1_4 = 4; [L25] unsigned short int var_1_5 = 0; [L26] signed short int var_1_6 = 0; [L27] unsigned char var_1_7 = 1; [L28] signed short int var_1_8 = -2; [L29] signed short int var_1_9 = 500; [L30] unsigned long int var_1_10 = 10; [L31] unsigned char var_1_11 = 2; [L32] unsigned char var_1_12 = 64; [L33] unsigned long int var_1_13 = 1; [L34] unsigned long int last_1_var_1_10 = 10; [L35] unsigned long int last_1_var_1_13 = 1; [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] CALL updateLastVariables() [L86] last_1_var_1_10 = var_1_10 [L87] last_1_var_1_13 = var_1_13 [L97] RET updateLastVariables() [L98] CALL updateVariables() [L60] var_1_3 = __VERIFIER_nondet_ushort() [L61] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_4=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_4=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L62] CALL assume_abort_if_not(var_1_3 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_3 <= 32767) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L63] var_1_4 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L65] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L66] var_1_5 = __VERIFIER_nondet_ushort() [L67] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L68] CALL assume_abort_if_not(var_1_5 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_5 <= 65534) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L69] var_1_7 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_8=-2, var_1_9=500] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_8=-2, var_1_9=500] [L71] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=-2, var_1_9=500] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=-2, var_1_9=500] [L72] var_1_8 = __VERIFIER_nondet_short() [L73] CALL assume_abort_if_not(var_1_8 >= -16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=500] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_8 >= -16383) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=500] [L74] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=500] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=500] [L75] var_1_9 = __VERIFIER_nondet_short() [L76] CALL assume_abort_if_not(var_1_9 >= -16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=-16383] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_9 >= -16383) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=-16383] [L77] CALL assume_abort_if_not(var_1_9 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=-16383] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_9 <= 16383) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=-16383] [L78] var_1_11 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_11 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=-254, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=-16383] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_11 >= 1) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=-254, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=-16383] [L80] CALL assume_abort_if_not(var_1_11 <= 128) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=-254, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=-16383] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_11 <= 128) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=-254, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=-16383] [L81] var_1_12 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_12 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=-254, var_1_12=3, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=-16383] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_12 >= 1) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=-254, var_1_12=3, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=-16383] [L83] CALL assume_abort_if_not(var_1_12 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=-254, var_1_12=3, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=-16383] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_12 <= 127) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=-254, var_1_12=3, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=-16383] [L98] RET updateVariables() [L99] CALL step() [L39] COND FALSE !(last_1_var_1_13 >= -50) [L42] EXPR var_1_11 & var_1_12 [L42] signed long int stepLocal_0 = var_1_11 & var_1_12; [L43] COND FALSE !(\read(var_1_7)) [L46] COND FALSE !(stepLocal_0 != var_1_1) [L50] COND FALSE !(\read(var_1_7)) [L53] EXPR last_1_var_1_10 >> var_1_1 [L53] EXPR var_1_8 << var_1_5 [L53] EXPR (last_1_var_1_10 >> var_1_1) ^ (var_1_8 << var_1_5) [L53] COND TRUE (var_1_6 / (var_1_11 + var_1_12)) != ((last_1_var_1_10 >> var_1_1) ^ (var_1_8 << var_1_5)) [L54] var_1_10 = ((((var_1_12) < (var_1_4)) ? (var_1_12) : (var_1_4))) [L99] RET step() [L100] CALL, EXPR property() [L90] EXPR (((last_1_var_1_13 >= -50) ? (var_1_1 == ((unsigned short int) (((((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) > (var_1_5)) ? ((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : (var_1_5))))) : 1) && (var_1_7 ? (var_1_6 == ((signed short int) (var_1_8 + var_1_9))) : 1)) && (((var_1_6 / (var_1_11 + var_1_12)) != ((last_1_var_1_10 >> var_1_1) ^ (var_1_8 << var_1_5))) ? (var_1_10 == ((unsigned long int) ((((var_1_12) < (var_1_4)) ? (var_1_12) : (var_1_4))))) : (var_1_10 == ((unsigned long int) var_1_11))) [L90] EXPR last_1_var_1_10 >> var_1_1 [L90] EXPR var_1_8 << var_1_5 [L90] EXPR (last_1_var_1_10 >> var_1_1) ^ (var_1_8 << var_1_5) [L90] EXPR (((last_1_var_1_13 >= -50) ? (var_1_1 == ((unsigned short int) (((((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) > (var_1_5)) ? ((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : (var_1_5))))) : 1) && (var_1_7 ? (var_1_6 == ((signed short int) (var_1_8 + var_1_9))) : 1)) && (((var_1_6 / (var_1_11 + var_1_12)) != ((last_1_var_1_10 >> var_1_1) ^ (var_1_8 << var_1_5))) ? (var_1_10 == ((unsigned long int) ((((var_1_12) < (var_1_4)) ? (var_1_12) : (var_1_4))))) : (var_1_10 == ((unsigned long int) var_1_11))) [L90] EXPR ((((last_1_var_1_13 >= -50) ? (var_1_1 == ((unsigned short int) (((((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) > (var_1_5)) ? ((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : (var_1_5))))) : 1) && (var_1_7 ? (var_1_6 == ((signed short int) (var_1_8 + var_1_9))) : 1)) && (((var_1_6 / (var_1_11 + var_1_12)) != ((last_1_var_1_10 >> var_1_1) ^ (var_1_8 << var_1_5))) ? (var_1_10 == ((unsigned long int) ((((var_1_12) < (var_1_4)) ? (var_1_12) : (var_1_4))))) : (var_1_10 == ((unsigned long int) var_1_11)))) && (var_1_7 ? (var_1_13 == ((unsigned long int) ((((var_1_11) > (var_1_1)) ? (var_1_11) : (var_1_1))))) : (((var_1_11 & var_1_12) != var_1_1) ? (var_1_13 == ((unsigned long int) var_1_12)) : 1)) [L90] EXPR var_1_7 ? (var_1_13 == ((unsigned long int) ((((var_1_11) > (var_1_1)) ? (var_1_11) : (var_1_1))))) : (((var_1_11 & var_1_12) != var_1_1) ? (var_1_13 == ((unsigned long int) var_1_12)) : 1) [L90] EXPR var_1_11 & var_1_12 [L90] EXPR var_1_7 ? (var_1_13 == ((unsigned long int) ((((var_1_11) > (var_1_1)) ? (var_1_11) : (var_1_1))))) : (((var_1_11 & var_1_12) != var_1_1) ? (var_1_13 == ((unsigned long int) var_1_12)) : 1) [L90] EXPR ((((last_1_var_1_13 >= -50) ? (var_1_1 == ((unsigned short int) (((((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) > (var_1_5)) ? ((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : (var_1_5))))) : 1) && (var_1_7 ? (var_1_6 == ((signed short int) (var_1_8 + var_1_9))) : 1)) && (((var_1_6 / (var_1_11 + var_1_12)) != ((last_1_var_1_10 >> var_1_1) ^ (var_1_8 << var_1_5))) ? (var_1_10 == ((unsigned long int) ((((var_1_12) < (var_1_4)) ? (var_1_12) : (var_1_4))))) : (var_1_10 == ((unsigned long int) var_1_11)))) && (var_1_7 ? (var_1_13 == ((unsigned long int) ((((var_1_11) > (var_1_1)) ? (var_1_11) : (var_1_1))))) : (((var_1_11 & var_1_12) != var_1_1) ? (var_1_13 == ((unsigned long int) var_1_12)) : 1)) [L90-L91] return ((((last_1_var_1_13 >= -50) ? (var_1_1 == ((unsigned short int) (((((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) > (var_1_5)) ? ((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : (var_1_5))))) : 1) && (var_1_7 ? (var_1_6 == ((signed short int) (var_1_8 + var_1_9))) : 1)) && (((var_1_6 / (var_1_11 + var_1_12)) != ((last_1_var_1_10 >> var_1_1) ^ (var_1_8 << var_1_5))) ? (var_1_10 == ((unsigned long int) ((((var_1_12) < (var_1_4)) ? (var_1_12) : (var_1_4))))) : (var_1_10 == ((unsigned long int) var_1_11)))) && (var_1_7 ? (var_1_13 == ((unsigned long int) ((((var_1_11) > (var_1_1)) ? (var_1_11) : (var_1_1))))) : (((var_1_11 & var_1_12) != var_1_1) ? (var_1_13 == ((unsigned long int) var_1_12)) : 1)) ; [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=3, var_1_11=-254, var_1_12=3, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=-16383] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=3, var_1_11=-254, var_1_12=3, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=3, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=-16383] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 1, TraceHistogramMax: 16, 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=33occurred 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, 0.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 2 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 [2024-11-09 01:18:00,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/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_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-32.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje --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 736d11fbaff9bd8217e7f35fe2915a40a2ccc3f0b056dd854b0369e62e08ee86 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:18:02,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:18:02,700 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 01:18:02,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:18:02,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:18:02,732 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:18:02,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:18:02,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:18:02,738 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:18:02,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:18:02,739 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:18:02,739 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:18:02,740 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:18:02,740 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:18:02,740 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:18:02,741 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:18:02,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:18:02,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:18:02,748 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:18:02,748 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:18:02,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:18:02,749 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:18:02,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:18:02,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:18:02,752 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 01:18:02,752 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 01:18:02,752 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:18:02,753 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 01:18:02,753 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:18:02,753 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:18:02,754 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:18:02,755 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:18:02,755 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 01:18:02,755 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:18:02,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:18:02,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:18:02,757 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:18:02,757 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:18:02,757 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:18:02,758 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 01:18:02,758 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 01:18:02,759 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:18:02,759 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:18:02,770 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 736d11fbaff9bd8217e7f35fe2915a40a2ccc3f0b056dd854b0369e62e08ee86 [2024-11-09 01:18:03,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:18:03,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:18:03,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:18:03,200 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:18:03,200 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:18:03,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-32.i Unable to find full path for "g++" [2024-11-09 01:18:05,599 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:18:05,870 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:18:05,871 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-32.i [2024-11-09 01:18:05,886 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/data/2d85b4f6e/5f484614cfc848c09b86291938a6b8a2/FLAG83a32ea16 [2024-11-09 01:18:06,173 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/data/2d85b4f6e/5f484614cfc848c09b86291938a6b8a2 [2024-11-09 01:18:06,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:18:06,177 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:18:06,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:18:06,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:18:06,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:18:06,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:18:06" (1/1) ... [2024-11-09 01:18:06,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@234cdd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:18:06, skipping insertion in model container [2024-11-09 01:18:06,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:18:06" (1/1) ... [2024-11-09 01:18:06,216 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:18:06,393 WARN L250 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_7e27b916-a365-483b-91c4-dcd563d80d06/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-32.i[915,928] [2024-11-09 01:18:06,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:18:06,470 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:18:06,489 WARN L250 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_7e27b916-a365-483b-91c4-dcd563d80d06/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-32.i[915,928] [2024-11-09 01:18:06,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:18:06,558 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:18:06,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:18:06 WrapperNode [2024-11-09 01:18:06,559 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:18:06,561 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:18:06,561 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:18:06,561 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:18:06,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:18:06" (1/1) ... [2024-11-09 01:18:06,587 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:18:06" (1/1) ... [2024-11-09 01:18:06,624 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2024-11-09 01:18:06,626 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:18:06,627 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:18:06,628 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:18:06,628 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:18:06,640 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:18:06" (1/1) ... [2024-11-09 01:18:06,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:18:06" (1/1) ... [2024-11-09 01:18:06,644 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:18:06" (1/1) ... [2024-11-09 01:18:06,645 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:18:06" (1/1) ... [2024-11-09 01:18:06,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:18:06" (1/1) ... [2024-11-09 01:18:06,667 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:18:06" (1/1) ... [2024-11-09 01:18:06,673 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:18:06" (1/1) ... [2024-11-09 01:18:06,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:18:06" (1/1) ... [2024-11-09 01:18:06,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:18:06,682 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:18:06,682 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:18:06,682 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:18:06,683 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:18:06" (1/1) ... [2024-11-09 01:18:06,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:18:06,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:18:06,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:18:06,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:18:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:18:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 01:18:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:18:06,775 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:18:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:18:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:18:06,873 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:18:06,876 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:18:07,215 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 01:18:07,215 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:18:07,231 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:18:07,231 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:18:07,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:18:07 BoogieIcfgContainer [2024-11-09 01:18:07,232 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:18:07,235 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:18:07,235 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:18:07,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:18:07,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:18:06" (1/3) ... [2024-11-09 01:18:07,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5271308f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:18:07, skipping insertion in model container [2024-11-09 01:18:07,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:18:06" (2/3) ... [2024-11-09 01:18:07,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5271308f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:18:07, skipping insertion in model container [2024-11-09 01:18:07,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:18:07" (3/3) ... [2024-11-09 01:18:07,243 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-32.i [2024-11-09 01:18:07,267 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:18:07,267 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:18:07,345 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:18:07,351 INFO L333 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, 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;@6803f94f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:18:07,352 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:18:07,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 31 states have internal predecessors, (40), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:18:07,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 01:18:07,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:18:07,378 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:18:07,379 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:18:07,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:18:07,385 INFO L85 PathProgramCache]: Analyzing trace with hash 502783335, now seen corresponding path program 1 times [2024-11-09 01:18:07,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:18:07,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088600477] [2024-11-09 01:18:07,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:18:07,400 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 [2024-11-09 01:18:07,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:18:07,404 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 01:18:07,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 01:18:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:18:07,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:18:07,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:18:08,084 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-09 01:18:08,085 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:18:08,085 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:18:08,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088600477] [2024-11-09 01:18:08,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088600477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:18:08,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:18:08,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:18:08,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071622680] [2024-11-09 01:18:08,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:18:08,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:18:08,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:18:08,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:18:08,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:18:08,136 INFO L87 Difference]: Start difference. First operand has 49 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 31 states have internal predecessors, (40), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-09 01:18:08,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:18:08,405 INFO L93 Difference]: Finished difference Result 142 states and 250 transitions. [2024-11-09 01:18:08,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:18:08,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 102 [2024-11-09 01:18:08,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:18:08,423 INFO L225 Difference]: With dead ends: 142 [2024-11-09 01:18:08,423 INFO L226 Difference]: Without dead ends: 96 [2024-11-09 01:18:08,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:18:08,433 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 45 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:18:08,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 187 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:18:08,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-09 01:18:08,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 85. [2024-11-09 01:18:08,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 50 states have (on average 1.22) internal successors, (61), 50 states have internal predecessors, (61), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-09 01:18:08,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 125 transitions. [2024-11-09 01:18:08,512 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 125 transitions. Word has length 102 [2024-11-09 01:18:08,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:18:08,515 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 125 transitions. [2024-11-09 01:18:08,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-09 01:18:08,516 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 125 transitions. [2024-11-09 01:18:08,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 01:18:08,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:18:08,520 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:18:08,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 01:18:08,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 01:18:08,722 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:18:08,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:18:08,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1182841705, now seen corresponding path program 1 times [2024-11-09 01:18:08,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:18:08,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528354435] [2024-11-09 01:18:08,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:18:08,724 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 [2024-11-09 01:18:08,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:18:08,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 01:18:08,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 01:18:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:18:08,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:18:08,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:31:59,330 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-09 01:31:59,330 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:31:59,331 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:31:59,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528354435] [2024-11-09 01:31:59,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1528354435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:31:59,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:31:59,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 01:31:59,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645072160] [2024-11-09 01:31:59,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:31:59,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 01:31:59,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:31:59,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 01:31:59,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:31:59,336 INFO L87 Difference]: Start difference. First operand 85 states and 125 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-09 01:32:00,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:00,351 INFO L93 Difference]: Finished difference Result 152 states and 216 transitions. [2024-11-09 01:32:00,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 01:32:00,354 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 102 [2024-11-09 01:32:00,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:00,358 INFO L225 Difference]: With dead ends: 152 [2024-11-09 01:32:00,358 INFO L226 Difference]: Without dead ends: 110 [2024-11-09 01:32:00,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-09 01:32:00,361 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 68 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:32:00,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 349 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 01:32:00,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-09 01:32:00,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 90. [2024-11-09 01:32:00,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 55 states have (on average 1.2181818181818183) internal successors, (67), 55 states have internal predecessors, (67), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-09 01:32:00,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 131 transitions. [2024-11-09 01:32:00,390 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 131 transitions. Word has length 102 [2024-11-09 01:32:00,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:00,391 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 131 transitions. [2024-11-09 01:32:00,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-09 01:32:00,391 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 131 transitions. [2024-11-09 01:32:00,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 01:32:00,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:00,393 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:32:00,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-09 01:32:00,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 01:32:00,598 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:32:00,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:00,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1184688747, now seen corresponding path program 1 times [2024-11-09 01:32:00,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:32:00,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286877569] [2024-11-09 01:32:00,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:00,600 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 [2024-11-09 01:32:00,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:32:00,603 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 01:32:00,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e27b916-a365-483b-91c4-dcd563d80d06/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 01:32:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:00,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:32:00,713 INFO L278 TraceCheckSpWp]: Computing forward predicates...