./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-93.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-93.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2 --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 8d967df176a3fd5ac0c12ff3bbfde8cbb01bd6c0de3c75d24920428ec3dcf217 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:24:06,767 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:24:06,864 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:24:06,872 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:24:06,873 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:24:06,908 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:24:06,910 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:24:06,911 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:24:06,912 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:24:06,913 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:24:06,914 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:24:06,915 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:24:06,915 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:24:06,916 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:24:06,918 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:24:06,918 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:24:06,919 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:24:06,919 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:24:06,919 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:24:06,920 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:24:06,923 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:24:06,924 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:24:06,924 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:24:06,925 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:24:06,925 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:24:06,925 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:24:06,925 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:24:06,926 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:24:06,932 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:24:06,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:24:06,933 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:24:06,933 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:24:06,933 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:24:06,934 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:24:06,934 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:24:06,934 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:24:06,934 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:24:06,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:24:06,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:06,937 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:24:06,937 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:24:06,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:24:06,938 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:24:06,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:24:06,939 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:24:06,939 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:24:06,940 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:24:06,940 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_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d967df176a3fd5ac0c12ff3bbfde8cbb01bd6c0de3c75d24920428ec3dcf217 [2024-11-02 12:24:07,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:24:07,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:24:07,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:24:07,356 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:24:07,356 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:24:07,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-93.i Unable to find full path for "g++" [2024-11-02 12:24:09,558 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:24:09,809 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:24:09,809 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-93.i [2024-11-02 12:24:09,826 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/data/1ceb55d30/d39230bb46af4ba49cfeb2a79e487eba/FLAG6b3064137 [2024-11-02 12:24:10,140 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/data/1ceb55d30/d39230bb46af4ba49cfeb2a79e487eba [2024-11-02 12:24:10,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:24:10,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:24:10,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:10,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:24:10,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:24:10,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:10" (1/1) ... [2024-11-02 12:24:10,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@725299f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:10, skipping insertion in model container [2024-11-02 12:24:10,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:10" (1/1) ... [2024-11-02 12:24:10,178 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:24:10,402 WARN L251 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_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-93.i[915,928] [2024-11-02 12:24:10,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:10,479 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:24:10,489 WARN L251 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_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-93.i[915,928] [2024-11-02 12:24:10,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:10,543 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:24:10,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:10 WrapperNode [2024-11-02 12:24:10,544 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:10,545 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:10,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:24:10,546 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:24:10,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:10" (1/1) ... [2024-11-02 12:24:10,562 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:10" (1/1) ... [2024-11-02 12:24:10,587 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 122 [2024-11-02 12:24:10,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:10,589 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:24:10,589 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:24:10,589 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:24:10,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:10" (1/1) ... [2024-11-02 12:24:10,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:10" (1/1) ... [2024-11-02 12:24:10,602 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:10" (1/1) ... [2024-11-02 12:24:10,603 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:10" (1/1) ... [2024-11-02 12:24:10,609 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:10" (1/1) ... [2024-11-02 12:24:10,617 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:10" (1/1) ... [2024-11-02 12:24:10,619 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:10" (1/1) ... [2024-11-02 12:24:10,624 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:10" (1/1) ... [2024-11-02 12:24:10,627 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:24:10,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:24:10,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:24:10,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:24:10,633 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:10" (1/1) ... [2024-11-02 12:24:10,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:10,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:24:10,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:24:10,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:24:10,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:24:10,702 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:24:10,702 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:24:10,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:24:10,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:24:10,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:24:10,790 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:24:10,793 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:24:11,144 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-02 12:24:11,145 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:24:11,317 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:24:11,317 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:24:11,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:11 BoogieIcfgContainer [2024-11-02 12:24:11,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:24:11,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:24:11,325 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:24:11,330 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:24:11,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:24:10" (1/3) ... [2024-11-02 12:24:11,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6ddb45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:11, skipping insertion in model container [2024-11-02 12:24:11,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:10" (2/3) ... [2024-11-02 12:24:11,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6ddb45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:11, skipping insertion in model container [2024-11-02 12:24:11,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:11" (3/3) ... [2024-11-02 12:24:11,335 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-93.i [2024-11-02 12:24:11,356 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:24:11,356 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:24:11,447 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:24:11,455 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;@73aaf33c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:24:11,455 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:24:11,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-02 12:24:11,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-02 12:24:11,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:11,504 INFO L215 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:24:11,505 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:11,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:11,515 INFO L85 PathProgramCache]: Analyzing trace with hash 760191308, now seen corresponding path program 1 times [2024-11-02 12:24:11,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:24:11,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702298560] [2024-11-02 12:24:11,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:11,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:24:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:24:11,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:24:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:24:12,047 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:24:12,050 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:24:12,051 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:24:12,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:24:12,058 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:24:12,157 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:24:12,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:24:12 BoogieIcfgContainer [2024-11-02 12:24:12,163 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:24:12,164 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:24:12,165 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:24:12,166 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:24:12,166 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:11" (3/4) ... [2024-11-02 12:24:12,170 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:24:12,172 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:24:12,174 INFO L158 Benchmark]: Toolchain (without parser) took 2029.54ms. Allocated memory was 140.5MB in the beginning and 174.1MB in the end (delta: 33.6MB). Free memory was 101.1MB in the beginning and 115.9MB in the end (delta: -14.8MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-11-02 12:24:12,175 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 140.5MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:24:12,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.07ms. Allocated memory is still 140.5MB. Free memory was 100.6MB in the beginning and 86.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 12:24:12,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.76ms. Allocated memory is still 140.5MB. Free memory was 86.7MB in the beginning and 84.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:24:12,178 INFO L158 Benchmark]: Boogie Preprocessor took 42.21ms. Allocated memory is still 140.5MB. Free memory was 84.3MB in the beginning and 83.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:24:12,180 INFO L158 Benchmark]: RCFGBuilder took 686.52ms. Allocated memory is still 140.5MB. Free memory was 83.1MB in the beginning and 58.5MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-02 12:24:12,181 INFO L158 Benchmark]: TraceAbstraction took 838.86ms. Allocated memory was 140.5MB in the beginning and 174.1MB in the end (delta: 33.6MB). Free memory was 57.9MB in the beginning and 116.9MB in the end (delta: -58.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:24:12,182 INFO L158 Benchmark]: Witness Printer took 8.62ms. Allocated memory is still 174.1MB. Free memory was 116.9MB in the beginning and 115.9MB in the end (delta: 979.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:24:12,187 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 140.5MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.07ms. Allocated memory is still 140.5MB. Free memory was 100.6MB in the beginning and 86.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.76ms. Allocated memory is still 140.5MB. Free memory was 86.7MB in the beginning and 84.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.21ms. Allocated memory is still 140.5MB. Free memory was 84.3MB in the beginning and 83.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 686.52ms. Allocated memory is still 140.5MB. Free memory was 83.1MB in the beginning and 58.5MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 838.86ms. Allocated memory was 140.5MB in the beginning and 174.1MB in the end (delta: 33.6MB). Free memory was 57.9MB in the beginning and 116.9MB in the end (delta: -58.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.62ms. Allocated memory is still 174.1MB. Free memory was 116.9MB in the beginning and 115.9MB in the end (delta: 979.2kB). 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 someBinaryDOUBLEComparisonOperation at line 41, overapproximation of someBinaryFLOATComparisonOperation at line 50, overapproximation of someUnaryDOUBLEoperation at line 23. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 255.3; [L23] double var_1_3 = -0.9; [L24] double var_1_4 = 2.6; [L25] double var_1_5 = 128.5; [L26] float var_1_7 = 1.25; [L27] unsigned char var_1_8 = 0; [L28] unsigned char var_1_9 = 1; [L29] unsigned char var_1_10 = 0; [L30] signed char var_1_11 = -1; [L31] signed char var_1_12 = -10; [L32] signed char var_1_13 = -32; [L33] signed char var_1_14 = -2; [L34] unsigned long int var_1_15 = 500; [L35] unsigned long int var_1_16 = 16; [L36] float last_1_var_1_1 = 255.3; [L37] unsigned char last_1_var_1_8 = 0; [L105] isInitial = 1 [L106] FCALL initially() [L107] int k_loop; [L108] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_4=13/5, var_1_5=257/2, var_1_7=5/4, var_1_8=0, var_1_9=1] [L108] COND TRUE k_loop < 1 [L109] CALL updateLastVariables() [L97] last_1_var_1_1 = var_1_1 [L98] last_1_var_1_8 = var_1_8 [L109] RET updateLastVariables() [L110] CALL updateVariables() [L67] var_1_3 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_4=13/5, var_1_5=257/2, var_1_7=5/4, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_4=13/5, var_1_5=257/2, var_1_7=5/4, var_1_8=0, var_1_9=1] [L69] CALL assume_abort_if_not(var_1_3 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_4=13/5, var_1_5=257/2, var_1_7=5/4, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_3 != 0.0F) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_4=13/5, var_1_5=257/2, var_1_7=5/4, var_1_8=0, var_1_9=1] [L70] var_1_4 = __VERIFIER_nondet_double() [L71] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_5=257/2, var_1_7=5/4, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_5=257/2, var_1_7=5/4, var_1_8=0, var_1_9=1] [L72] var_1_5 = __VERIFIER_nondet_double() [L73] CALL assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_7=5/4, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_7=5/4, var_1_8=0, var_1_9=1] [L74] CALL assume_abort_if_not(var_1_5 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_7=5/4, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_5 != 0.0F) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_7=5/4, var_1_8=0, var_1_9=1] [L75] var_1_7 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L77] var_1_9 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_9 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_9 >= 1) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L79] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L80] var_1_10 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L82] CALL assume_abort_if_not(var_1_10 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_10 <= 0) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-10, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L83] var_1_12 = __VERIFIER_nondet_char() [L84] CALL assume_abort_if_not(var_1_12 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-126, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_12 >= -127) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-126, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L85] CALL assume_abort_if_not(var_1_12 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-126, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_12 <= 126) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-126, var_1_13=-32, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L86] var_1_13 = __VERIFIER_nondet_char() [L87] CALL assume_abort_if_not(var_1_13 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-126, var_1_13=-63, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_13 >= -63) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-126, var_1_13=-63, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L88] CALL assume_abort_if_not(var_1_13 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-126, var_1_13=-63, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_13 <= 63) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-126, var_1_13=-63, var_1_14=-2, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L89] var_1_14 = __VERIFIER_nondet_char() [L90] CALL assume_abort_if_not(var_1_14 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-126, var_1_13=-63, var_1_14=-63, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_14 >= -63) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-126, var_1_13=-63, var_1_14=-63, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L91] CALL assume_abort_if_not(var_1_14 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-126, var_1_13=-63, var_1_14=-63, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_14 <= 63) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-126, var_1_13=-63, var_1_14=-63, var_1_15=500, var_1_16=16, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L92] var_1_16 = __VERIFIER_nondet_ulong() [L93] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-126, var_1_13=-63, var_1_14=-63, var_1_15=500, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-126, var_1_13=-63, var_1_14=-63, var_1_15=500, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L94] CALL assume_abort_if_not(var_1_16 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-126, var_1_13=-63, var_1_14=-63, var_1_15=500, var_1_16=0, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_16 <= 4294967294) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-1, var_1_12=-126, var_1_13=-63, var_1_14=-63, var_1_15=500, var_1_16=0, var_1_1=2553/10, var_1_8=0, var_1_9=1] [L110] RET updateVariables() [L111] CALL step() [L41] COND TRUE ((- last_1_var_1_1) / var_1_3) != (var_1_4 / var_1_5) [L42] COND FALSE !(\read(last_1_var_1_8)) [L45] var_1_1 = var_1_7 [L50] COND TRUE var_1_1 != var_1_1 [L51] COND FALSE !(var_1_1 < (var_1_1 * 15.25)) [L57] COND FALSE !(var_1_1 < var_1_1) [L62] var_1_11 = (var_1_13 + var_1_14) [L64] var_1_15 = var_1_16 [L111] RET step() [L112] CALL, EXPR property() [L101-L102] return ((((((- last_1_var_1_1) / var_1_3) != (var_1_4 / var_1_5)) ? (last_1_var_1_8 ? (var_1_1 == ((float) var_1_7)) : (var_1_1 == ((float) var_1_7))) : (var_1_1 == ((float) var_1_7))) && ((var_1_1 != var_1_1) ? ((var_1_1 < (var_1_1 * 15.25)) ? (var_1_8 == ((unsigned char) (! var_1_9))) : 1) : (var_1_8 == ((unsigned char) (! var_1_10))))) && ((var_1_1 < var_1_1) ? (var_1_10 ? (var_1_11 == ((signed char) var_1_12)) : 1) : (var_1_11 == ((signed char) (var_1_13 + var_1_14))))) && (var_1_15 == ((unsigned long int) var_1_16)) ; [L112] RET, EXPR property() [L112] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-126, var_1_12=-126, var_1_13=-63, var_1_14=-63, var_1_15=0, var_1_16=0, var_1_1=505, var_1_7=505, var_1_8=0, var_1_9=1] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=2553/10, last_1_var_1_8=0, var_1_10=0, var_1_11=-126, var_1_12=-126, var_1_13=-63, var_1_14=-63, var_1_15=0, var_1_16=0, var_1_1=505, var_1_7=505, var_1_8=0, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 18, 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=37occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-02 12:24:12,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/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_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-93.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2 --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 8d967df176a3fd5ac0c12ff3bbfde8cbb01bd6c0de3c75d24920428ec3dcf217 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:24:14,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:24:14,862 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 12:24:14,870 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:24:14,870 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:24:14,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:24:14,911 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:24:14,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:24:14,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:24:14,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:24:14,919 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:24:14,919 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:24:14,919 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:24:14,920 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:24:14,920 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:24:14,921 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:24:14,923 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:24:14,923 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:24:14,924 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:24:14,924 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:24:14,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:24:14,926 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:24:14,927 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:24:14,927 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:24:14,927 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:24:14,928 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:24:14,928 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:24:14,929 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:24:14,929 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:24:14,929 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:24:14,930 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:24:14,930 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:24:14,930 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:24:14,931 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:24:14,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:24:14,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:14,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:24:14,933 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:24:14,934 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:24:14,934 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:24:14,934 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:24:14,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:24:14,936 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:24:14,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:24:14,936 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d967df176a3fd5ac0c12ff3bbfde8cbb01bd6c0de3c75d24920428ec3dcf217 [2024-11-02 12:24:15,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:24:15,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:24:15,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:24:15,403 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:24:15,403 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:24:15,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-93.i Unable to find full path for "g++" [2024-11-02 12:24:17,639 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:24:17,911 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:24:17,912 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-93.i [2024-11-02 12:24:17,923 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/data/cc919ba00/285b49f4585a446c86f108406c8a7a07/FLAG8cd8730f0 [2024-11-02 12:24:18,219 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/data/cc919ba00/285b49f4585a446c86f108406c8a7a07 [2024-11-02 12:24:18,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:24:18,224 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:24:18,225 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:18,226 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:24:18,231 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:24:18,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b0239fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18, skipping insertion in model container [2024-11-02 12:24:18,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,258 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:24:18,470 WARN L251 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_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-93.i[915,928] [2024-11-02 12:24:18,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:18,569 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:24:18,587 WARN L251 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_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-93.i[915,928] [2024-11-02 12:24:18,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:18,668 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:24:18,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18 WrapperNode [2024-11-02 12:24:18,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:18,670 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:18,670 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:24:18,670 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:24:18,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,742 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 119 [2024-11-02 12:24:18,746 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:18,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:24:18,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:24:18,751 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:24:18,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,787 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,788 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,807 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,824 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:24:18,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:24:18,837 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:24:18,837 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:24:18,839 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:18,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:24:18,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:24:18,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:24:18,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:24:18,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:24:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:24:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:24:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:24:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:24:19,114 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:24:19,119 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:24:26,949 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-02 12:24:26,949 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:24:26,963 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:24:26,964 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:24:26,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:26 BoogieIcfgContainer [2024-11-02 12:24:26,964 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:24:26,967 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:24:26,967 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:24:26,970 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:24:26,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:24:18" (1/3) ... [2024-11-02 12:24:26,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19226a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:26, skipping insertion in model container [2024-11-02 12:24:26,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (2/3) ... [2024-11-02 12:24:26,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19226a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:26, skipping insertion in model container [2024-11-02 12:24:26,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:26" (3/3) ... [2024-11-02 12:24:26,974 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-93.i [2024-11-02 12:24:26,992 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:24:26,992 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:24:27,052 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:24:27,059 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;@222ae7a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:24:27,059 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:24:27,063 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-02 12:24:27,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-02 12:24:27,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:27,076 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:24:27,077 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:27,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:27,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1526081149, now seen corresponding path program 1 times [2024-11-02 12:24:27,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:24:27,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760299399] [2024-11-02 12:24:27,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:27,097 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 [2024-11-02 12:24:27,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:24:27,101 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:24:27,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:24:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:29,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 12:24:29,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:24:29,173 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-02 12:24:29,175 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:24:29,176 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:24:29,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760299399] [2024-11-02 12:24:29,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1760299399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:24:29,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:24:29,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:24:29,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711290411] [2024-11-02 12:24:29,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:24:29,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:24:29,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:24:29,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:24:29,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:24:29,220 INFO L87 Difference]: Start difference. First operand has 55 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-02 12:24:29,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:24:29,262 INFO L93 Difference]: Finished difference Result 106 states and 175 transitions. [2024-11-02 12:24:29,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:24:29,266 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113 [2024-11-02 12:24:29,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:24:29,277 INFO L225 Difference]: With dead ends: 106 [2024-11-02 12:24:29,278 INFO L226 Difference]: Without dead ends: 50 [2024-11-02 12:24:29,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:24:29,289 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:24:29,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:24:29,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-02 12:24:29,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-02 12:24:29,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-02 12:24:29,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 71 transitions. [2024-11-02 12:24:29,357 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 71 transitions. Word has length 113 [2024-11-02 12:24:29,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:24:29,359 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 71 transitions. [2024-11-02 12:24:29,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-02 12:24:29,360 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 71 transitions. [2024-11-02 12:24:29,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-02 12:24:29,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:29,364 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:24:29,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-02 12:24:29,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:24:29,569 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:29,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:29,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1267104317, now seen corresponding path program 1 times [2024-11-02 12:24:29,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:24:29,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713019932] [2024-11-02 12:24:29,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:29,574 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 [2024-11-02 12:24:29,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:24:29,579 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:24:29,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a4a44d9-eb33-4d16-8ab7-66666cec30c9/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:24:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:31,254 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-02 12:24:31,266 INFO L278 TraceCheckSpWp]: Computing forward predicates...