./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-67.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-67.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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_15d318d4-87af-48e4-9127-c15016e65909/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 fd38e103082400978e963855c45ad16aea167d5793b2ed8eb8338e9d66135232 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:01:30,738 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:01:30,860 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 07:01:30,868 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:01:30,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:01:30,917 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:01:30,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:01:30,920 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:01:30,921 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:01:30,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:01:30,925 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:01:30,925 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:01:30,926 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:01:30,927 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:01:30,931 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:01:30,931 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:01:30,932 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:01:30,932 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:01:30,933 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:01:30,935 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:01:30,935 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:01:30,936 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:01:30,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:01:30,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:01:30,938 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:01:30,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:01:30,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:01:30,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:01:30,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:01:30,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:01:30,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:01:30,940 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:01:30,940 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:01:30,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:01:30,941 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:01:30,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:01:30,942 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:01:30,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:01:30,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:01:30,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:01:30,943 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:01:30,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:01:30,946 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:01:30,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:01:30,946 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:01:30,947 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:01:30,947 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:01:30,947 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_15d318d4-87af-48e4-9127-c15016e65909/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd38e103082400978e963855c45ad16aea167d5793b2ed8eb8338e9d66135232 [2024-11-09 07:01:31,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:01:31,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:01:31,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:01:31,360 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:01:31,360 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:01:31,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-67.i Unable to find full path for "g++" [2024-11-09 07:01:33,729 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:01:33,964 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:01:33,964 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-67.i [2024-11-09 07:01:33,976 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/data/bdc2e1de3/d03ceff1d69e4492b9af56489a32b5c2/FLAGb39189977 [2024-11-09 07:01:34,307 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/data/bdc2e1de3/d03ceff1d69e4492b9af56489a32b5c2 [2024-11-09 07:01:34,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:01:34,312 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:01:34,314 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:01:34,314 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:01:34,324 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:01:34,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:01:34" (1/1) ... [2024-11-09 07:01:34,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2159edfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:34, skipping insertion in model container [2024-11-09 07:01:34,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:01:34" (1/1) ... [2024-11-09 07:01:34,358 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:01:34,612 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_15d318d4-87af-48e4-9127-c15016e65909/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-67.i[915,928] [2024-11-09 07:01:34,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:01:34,683 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:01:34,701 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_15d318d4-87af-48e4-9127-c15016e65909/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-67.i[915,928] [2024-11-09 07:01:34,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:01:34,755 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:01:34,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:34 WrapperNode [2024-11-09 07:01:34,756 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:01:34,758 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:01:34,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:01:34,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:01:34,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:34" (1/1) ... [2024-11-09 07:01:34,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:34" (1/1) ... [2024-11-09 07:01:34,817 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2024-11-09 07:01:34,818 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:01:34,819 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:01:34,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:01:34,819 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:01:34,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:34" (1/1) ... [2024-11-09 07:01:34,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:34" (1/1) ... [2024-11-09 07:01:34,852 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:34" (1/1) ... [2024-11-09 07:01:34,853 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:34" (1/1) ... [2024-11-09 07:01:34,861 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:34" (1/1) ... [2024-11-09 07:01:34,865 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:34" (1/1) ... [2024-11-09 07:01:34,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:34" (1/1) ... [2024-11-09 07:01:34,869 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:34" (1/1) ... [2024-11-09 07:01:34,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:01:34,875 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:01:34,879 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:01:34,879 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:01:34,884 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:34" (1/1) ... [2024-11-09 07:01:34,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:01:34,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:01:34,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:01:34,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:01:34,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:01:34,983 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:01:34,984 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:01:34,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:01:34,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:01:34,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:01:35,106 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:01:35,112 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:01:35,518 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-09 07:01:35,519 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:01:35,709 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:01:35,710 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 07:01:35,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:01:35 BoogieIcfgContainer [2024-11-09 07:01:35,710 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:01:35,714 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:01:35,714 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:01:35,719 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:01:35,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:01:34" (1/3) ... [2024-11-09 07:01:35,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fceaef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:01:35, skipping insertion in model container [2024-11-09 07:01:35,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:34" (2/3) ... [2024-11-09 07:01:35,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fceaef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:01:35, skipping insertion in model container [2024-11-09 07:01:35,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:01:35" (3/3) ... [2024-11-09 07:01:35,723 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-67.i [2024-11-09 07:01:35,746 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:01:35,746 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:01:35,826 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:01:35,834 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;@d856e49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:01:35,835 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:01:35,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 07:01:35,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 07:01:35,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:35,855 INFO L215 NwaCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:35,856 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:01:35,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:35,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1775921912, now seen corresponding path program 1 times [2024-11-09 07:01:35,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:01:35,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821812578] [2024-11-09 07:01:35,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:35,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:01:36,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [317827502] [2024-11-09 07:01:36,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:36,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:01:36,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:01:36,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:01:36,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:01:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:01:36,716 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:01:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:01:36,899 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 07:01:36,906 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:01:36,908 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 07:01:36,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 07:01:37,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:01:37,118 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 07:01:37,228 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:01:37,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:01:37 BoogieIcfgContainer [2024-11-09 07:01:37,236 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:01:37,237 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:01:37,238 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:01:37,238 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:01:37,239 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:01:35" (3/4) ... [2024-11-09 07:01:37,243 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 07:01:37,245 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:01:37,247 INFO L158 Benchmark]: Toolchain (without parser) took 2934.21ms. Allocated memory was 161.5MB in the beginning and 201.3MB in the end (delta: 39.8MB). Free memory was 117.8MB in the beginning and 123.3MB in the end (delta: -5.5MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2024-11-09 07:01:37,248 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 161.5MB. Free memory is still 107.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:01:37,249 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.10ms. Allocated memory is still 161.5MB. Free memory was 117.8MB in the beginning and 103.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 07:01:37,251 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.17ms. Allocated memory is still 161.5MB. Free memory was 103.1MB in the beginning and 100.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:01:37,251 INFO L158 Benchmark]: Boogie Preprocessor took 55.81ms. Allocated memory is still 161.5MB. Free memory was 100.4MB in the beginning and 98.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:01:37,254 INFO L158 Benchmark]: RCFGBuilder took 835.32ms. Allocated memory was 161.5MB in the beginning and 201.3MB in the end (delta: 39.8MB). Free memory was 98.9MB in the beginning and 166.3MB in the end (delta: -67.4MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2024-11-09 07:01:37,255 INFO L158 Benchmark]: TraceAbstraction took 1522.46ms. Allocated memory is still 201.3MB. Free memory was 166.3MB in the beginning and 124.3MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-09 07:01:37,255 INFO L158 Benchmark]: Witness Printer took 7.68ms. Allocated memory is still 201.3MB. Free memory was 124.3MB in the beginning and 123.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:01:37,262 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 161.5MB. Free memory is still 107.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.10ms. Allocated memory is still 161.5MB. Free memory was 117.8MB in the beginning and 103.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.17ms. Allocated memory is still 161.5MB. Free memory was 103.1MB in the beginning and 100.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.81ms. Allocated memory is still 161.5MB. Free memory was 100.4MB in the beginning and 98.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 835.32ms. Allocated memory was 161.5MB in the beginning and 201.3MB in the end (delta: 39.8MB). Free memory was 98.9MB in the beginning and 166.3MB in the end (delta: -67.4MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1522.46ms. Allocated memory is still 201.3MB. Free memory was 166.3MB in the beginning and 124.3MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 7.68ms. Allocated memory is still 201.3MB. Free memory was 124.3MB in the beginning and 123.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 98. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 2; [L23] signed short int var_1_4 = -64; [L24] signed short int var_1_5 = 256; [L25] unsigned short int var_1_6 = 128; [L26] signed short int var_1_7 = -128; [L27] unsigned short int var_1_8 = 16; [L28] unsigned short int var_1_9 = 256; [L29] signed long int var_1_10 = 128; [L30] unsigned short int var_1_11 = 47512; [L31] unsigned char var_1_12 = 16; [L32] unsigned char var_1_13 = 1; [L33] float var_1_14 = 5.5; [L34] float var_1_15 = 24.5; [L35] signed short int last_1_var_1_1 = 2; [L36] unsigned short int last_1_var_1_6 = 128; [L102] isInitial = 1 [L103] FCALL initially() [L104] COND TRUE 1 [L105] CALL updateLastVariables() [L94] last_1_var_1_1 = var_1_1 [L95] last_1_var_1_6 = var_1_6 [L105] RET updateLastVariables() [L106] CALL updateVariables() [L64] var_1_4 = __VERIFIER_nondet_short() [L65] CALL assume_abort_if_not(var_1_4 >= -16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=256, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_4 >= -16383) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=256, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L66] CALL assume_abort_if_not(var_1_4 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=256, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_4 <= 16383) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=256, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L67] var_1_5 = __VERIFIER_nondet_short() [L68] CALL assume_abort_if_not(var_1_5 >= -16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_5 >= -16383) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L69] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=-128, var_1_8=16, var_1_9=256] [L70] var_1_7 = __VERIFIER_nondet_short() [L71] CALL assume_abort_if_not(var_1_7 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=16, var_1_9=256] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_7 >= -32768) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=16, var_1_9=256] [L72] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=16, var_1_9=256] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=16, var_1_9=256] [L73] CALL assume_abort_if_not(var_1_7 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=16, var_1_9=256] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_7 != 0) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=16, var_1_9=256] [L74] var_1_8 = __VERIFIER_nondet_ushort() [L75] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_9=256] [L76] CALL assume_abort_if_not(var_1_8 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=256] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_8 <= 32767) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=256] [L77] var_1_9 = __VERIFIER_nondet_ushort() [L78] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536] [L79] CALL assume_abort_if_not(var_1_9 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_9 <= 32767) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=47512, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L80] var_1_11 = __VERIFIER_nondet_ushort() [L81] CALL assume_abort_if_not(var_1_11 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_11 >= 32767) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L82] CALL assume_abort_if_not(var_1_11 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_11 <= 65535) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=16, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L83] var_1_12 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L85] CALL assume_abort_if_not(var_1_12 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_12 <= 255) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L86] CALL assume_abort_if_not(var_1_12 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=4, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_12 != 0) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=4, var_1_13=1, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L87] var_1_13 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=4, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=4, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L89] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=4, var_1_13=0, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=4, var_1_13=0, var_1_14=11/2, var_1_15=49/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L90] var_1_15 = __VERIFIER_nondet_float() [L91] CALL assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=4, var_1_13=0, var_1_14=11/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=128, var_1_11=32767, var_1_12=4, var_1_13=0, var_1_14=11/2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L106] RET updateVariables() [L107] CALL step() [L40] signed long int stepLocal_1 = last_1_var_1_6; [L41] signed long int stepLocal_0 = last_1_var_1_6; [L42] COND FALSE !(stepLocal_0 >= (var_1_11 - var_1_8)) [L53] var_1_10 = last_1_var_1_1 [L55] COND FALSE !(! (var_1_10 <= last_1_var_1_1)) [L58] COND FALSE !(var_1_4 > (var_1_10 / var_1_7)) [L61] var_1_14 = var_1_15 [L107] RET step() [L108] CALL, EXPR property() [L98-L99] return ((((! (var_1_10 <= last_1_var_1_1)) ? (var_1_1 == ((signed short int) (var_1_4 + var_1_5))) : 1) && ((var_1_4 > (var_1_10 / var_1_7)) ? (var_1_6 == ((unsigned short int) (var_1_8 + var_1_9))) : 1)) && ((last_1_var_1_6 >= (var_1_11 - var_1_8)) ? (((var_1_7 / var_1_12) <= last_1_var_1_6) ? (var_1_10 == ((signed long int) ((last_1_var_1_6 - var_1_8) + -32))) : (var_1_13 ? (var_1_10 == ((signed long int) ((((var_1_11) < (var_1_7)) ? (var_1_11) : (var_1_7))))) : (var_1_10 == ((signed long int) var_1_5)))) : (var_1_10 == ((signed long int) last_1_var_1_1)))) && (var_1_14 == ((float) var_1_15)) ; [L108] RET, EXPR property() [L108] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=2, var_1_11=32767, var_1_12=4, var_1_13=0, var_1_14=2, var_1_15=2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, var_1_10=2, var_1_11=32767, var_1_12=4, var_1_13=0, var_1_14=2, var_1_15=2, var_1_1=2, var_1_4=-16383, var_1_5=2, var_1_6=128, var_1_7=3, var_1_8=65536, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 19, 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, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 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 07:01:37,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-67.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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_15d318d4-87af-48e4-9127-c15016e65909/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 fd38e103082400978e963855c45ad16aea167d5793b2ed8eb8338e9d66135232 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:01:40,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:01:40,349 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 07:01:40,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:01:40,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:01:40,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:01:40,398 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:01:40,398 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:01:40,399 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:01:40,400 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:01:40,402 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:01:40,402 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:01:40,403 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:01:40,403 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:01:40,404 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:01:40,404 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:01:40,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:01:40,409 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:01:40,409 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:01:40,410 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:01:40,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:01:40,410 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:01:40,411 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:01:40,411 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:01:40,411 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:01:40,413 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 07:01:40,413 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:01:40,414 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 07:01:40,414 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:01:40,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:01:40,415 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:01:40,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:01:40,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:01:40,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:01:40,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:01:40,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:01:40,418 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:01:40,418 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:01:40,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:01:40,419 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 07:01:40,419 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 07:01:40,420 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:01:40,420 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:01:40,421 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_15d318d4-87af-48e4-9127-c15016e65909/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd38e103082400978e963855c45ad16aea167d5793b2ed8eb8338e9d66135232 [2024-11-09 07:01:40,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:01:40,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:01:40,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:01:40,878 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:01:40,878 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:01:40,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-67.i Unable to find full path for "g++" [2024-11-09 07:01:42,948 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:01:43,223 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:01:43,228 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-67.i [2024-11-09 07:01:43,239 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/data/e56144e70/1417c7c08a794011a054ce2625c1e630/FLAGa3f935ad2 [2024-11-09 07:01:43,261 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/data/e56144e70/1417c7c08a794011a054ce2625c1e630 [2024-11-09 07:01:43,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:01:43,266 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:01:43,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:01:43,269 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:01:43,277 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:01:43,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:01:43" (1/1) ... [2024-11-09 07:01:43,280 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2b122d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:43, skipping insertion in model container [2024-11-09 07:01:43,280 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:01:43" (1/1) ... [2024-11-09 07:01:43,346 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:01:43,649 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_15d318d4-87af-48e4-9127-c15016e65909/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-67.i[915,928] [2024-11-09 07:01:43,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:01:43,773 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:01:43,793 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_15d318d4-87af-48e4-9127-c15016e65909/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-67.i[915,928] [2024-11-09 07:01:43,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:01:43,878 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:01:43,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:43 WrapperNode [2024-11-09 07:01:43,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:01:43,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:01:43,882 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:01:43,882 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:01:43,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:43" (1/1) ... [2024-11-09 07:01:43,910 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:43" (1/1) ... [2024-11-09 07:01:43,962 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2024-11-09 07:01:43,963 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:01:43,964 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:01:43,964 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:01:43,964 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:01:43,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:43" (1/1) ... [2024-11-09 07:01:43,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:43" (1/1) ... [2024-11-09 07:01:43,988 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:43" (1/1) ... [2024-11-09 07:01:43,989 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:43" (1/1) ... [2024-11-09 07:01:44,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:43" (1/1) ... [2024-11-09 07:01:44,014 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:43" (1/1) ... [2024-11-09 07:01:44,017 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:43" (1/1) ... [2024-11-09 07:01:44,022 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:43" (1/1) ... [2024-11-09 07:01:44,029 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:01:44,035 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:01:44,035 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:01:44,035 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:01:44,036 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:43" (1/1) ... [2024-11-09 07:01:44,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:01:44,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:01:44,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:01:44,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:01:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:01:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 07:01:44,122 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:01:44,122 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:01:44,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:01:44,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:01:44,257 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:01:44,260 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:01:44,784 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-09 07:01:44,784 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:01:44,800 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:01:44,801 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 07:01:44,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:01:44 BoogieIcfgContainer [2024-11-09 07:01:44,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:01:44,804 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:01:44,804 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:01:44,809 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:01:44,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:01:43" (1/3) ... [2024-11-09 07:01:44,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b38bc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:01:44, skipping insertion in model container [2024-11-09 07:01:44,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:43" (2/3) ... [2024-11-09 07:01:44,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b38bc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:01:44, skipping insertion in model container [2024-11-09 07:01:44,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:01:44" (3/3) ... [2024-11-09 07:01:44,815 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-67.i [2024-11-09 07:01:44,840 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:01:44,840 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:01:44,926 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:01:44,934 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;@6e5b1487, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:01:44,934 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:01:44,939 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 07:01:44,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 07:01:44,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:44,961 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:44,961 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:01:44,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:44,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1465660149, now seen corresponding path program 1 times [2024-11-09 07:01:44,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:01:44,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190579528] [2024-11-09 07:01:44,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:44,985 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 07:01:44,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:01:44,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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 07:01:44,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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 07:01:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:45,225 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 07:01:45,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:01:45,318 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-11-09 07:01:45,319 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:01:45,320 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:01:45,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190579528] [2024-11-09 07:01:45,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [190579528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:45,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:45,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:45,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878173950] [2024-11-09 07:01:45,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:45,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:01:45,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:01:45,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:01:45,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:01:45,369 INFO L87 Difference]: Start difference. First operand has 53 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-09 07:01:45,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:45,412 INFO L93 Difference]: Finished difference Result 99 states and 171 transitions. [2024-11-09 07:01:45,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:01:45,417 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 117 [2024-11-09 07:01:45,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:45,430 INFO L225 Difference]: With dead ends: 99 [2024-11-09 07:01:45,430 INFO L226 Difference]: Without dead ends: 49 [2024-11-09 07:01:45,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:01:45,442 INFO L432 NwaCegarLoop]: 72 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, 72 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 [2024-11-09 07:01:45,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:01:45,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-09 07:01:45,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-09 07:01:45,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 07:01:45,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 72 transitions. [2024-11-09 07:01:45,527 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 72 transitions. Word has length 117 [2024-11-09 07:01:45,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:45,528 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 72 transitions. [2024-11-09 07:01:45,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-09 07:01:45,529 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 72 transitions. [2024-11-09 07:01:45,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 07:01:45,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:45,534 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:45,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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 07:01:45,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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 07:01:45,736 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:01:45,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:45,737 INFO L85 PathProgramCache]: Analyzing trace with hash 723465225, now seen corresponding path program 1 times [2024-11-09 07:01:45,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:01:45,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758568325] [2024-11-09 07:01:45,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:45,740 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 07:01:45,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:01:45,744 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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 07:01:45,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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 07:01:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:46,007 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 07:01:46,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:09:49,757 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-09 07:09:49,758 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:09:49,758 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:09:49,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758568325] [2024-11-09 07:09:49,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758568325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:49,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:49,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 07:09:49,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985938007] [2024-11-09 07:09:49,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:49,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:09:49,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:09:49,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:09:49,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:09:49,764 INFO L87 Difference]: Start difference. First operand 49 states and 72 transitions. Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-09 07:09:53,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:09:53,644 INFO L93 Difference]: Finished difference Result 188 states and 265 transitions. [2024-11-09 07:09:53,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 07:09:53,647 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 117 [2024-11-09 07:09:53,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:09:53,651 INFO L225 Difference]: With dead ends: 188 [2024-11-09 07:09:53,651 INFO L226 Difference]: Without dead ends: 142 [2024-11-09 07:09:53,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=194, Invalid=676, Unknown=0, NotChecked=0, Total=870 [2024-11-09 07:09:53,655 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 122 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:09:53,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 467 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 07:09:53,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-09 07:09:53,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 123. [2024-11-09 07:09:53,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 73 states have (on average 1.1917808219178083) internal successors, (87), 74 states have internal predecessors, (87), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 07:09:53,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 177 transitions. [2024-11-09 07:09:53,703 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 177 transitions. Word has length 117 [2024-11-09 07:09:53,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:09:53,704 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 177 transitions. [2024-11-09 07:09:53,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-09 07:09:53,705 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 177 transitions. [2024-11-09 07:09:53,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 07:09:53,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:09:53,708 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:09:53,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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 07:09:53,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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 07:09:53,909 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:09:53,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:53,910 INFO L85 PathProgramCache]: Analyzing trace with hash 780723527, now seen corresponding path program 1 times [2024-11-09 07:09:53,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:09:53,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695417874] [2024-11-09 07:09:53,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:53,913 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 07:09:53,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:09:53,915 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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 07:09:53,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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 07:09:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:54,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 07:09:54,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:14,284 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-09 07:15:14,285 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:15:14,285 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:15:14,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695417874] [2024-11-09 07:15:14,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [695417874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:14,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:15:14,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 07:15:14,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31656314] [2024-11-09 07:15:14,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:14,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:15:14,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:15:14,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:15:14,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:15:14,290 INFO L87 Difference]: Start difference. First operand 123 states and 177 transitions. Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-09 07:15:21,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:21,435 INFO L93 Difference]: Finished difference Result 132 states and 184 transitions. [2024-11-09 07:15:21,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 07:15:21,439 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 117 [2024-11-09 07:15:21,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:21,444 INFO L225 Difference]: With dead ends: 132 [2024-11-09 07:15:21,445 INFO L226 Difference]: Without dead ends: 130 [2024-11-09 07:15:21,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-11-09 07:15:21,446 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 86 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:21,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 415 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-09 07:15:21,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-09 07:15:21,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 123. [2024-11-09 07:15:21,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 73 states have (on average 1.178082191780822) internal successors, (86), 74 states have internal predecessors, (86), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 07:15:21,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 176 transitions. [2024-11-09 07:15:21,475 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 176 transitions. Word has length 117 [2024-11-09 07:15:21,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:21,476 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 176 transitions. [2024-11-09 07:15:21,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-09 07:15:21,476 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 176 transitions. [2024-11-09 07:15:21,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-09 07:15:21,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:21,479 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:15:21,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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)] Ended with exit code 0 [2024-11-09 07:15:21,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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 07:15:21,680 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:15:21,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:21,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1488021931, now seen corresponding path program 1 times [2024-11-09 07:15:21,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:15:21,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958602105] [2024-11-09 07:15:21,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:21,682 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 07:15:21,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:15:21,686 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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 07:15:21,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d318d4-87af-48e4-9127-c15016e65909/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 (5)] Waiting until timeout for monitored process [2024-11-09 07:15:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:21,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 07:15:21,879 INFO L278 TraceCheckSpWp]: Computing forward predicates...