./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-73.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-73.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f92f77375779269f33d6d08378e9440b45a9cd84382d3de78a8a10074b76e7bc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:45:15,834 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:45:15,900 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 06:45:15,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:45:15,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:45:15,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:45:15,930 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:45:15,931 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:45:15,932 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:45:15,932 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:45:15,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:45:15,933 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:45:15,934 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:45:15,934 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:45:15,935 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:45:15,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:45:15,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:45:15,936 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:45:15,937 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:45:15,937 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:45:15,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:45:15,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:45:15,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:45:15,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:45:15,943 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:45:15,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:45:15,944 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:45:15,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:45:15,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:45:15,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:45:15,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:45:15,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:45:15,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:45:15,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:45:15,953 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:45:15,953 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:45:15,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:45:15,954 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:45:15,954 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:45:15,955 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:45:15,955 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:45:15,955 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:45:15,955 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f92f77375779269f33d6d08378e9440b45a9cd84382d3de78a8a10074b76e7bc [2023-11-29 06:45:16,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:45:16,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:45:16,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:45:16,204 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:45:16,205 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:45:16,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-73.i [2023-11-29 06:45:19,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:45:19,651 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:45:19,651 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-73.i [2023-11-29 06:45:19,664 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/data/bedf84627/bc3a1827a21b490d8bfb37d0571da98c/FLAG009d7475a [2023-11-29 06:45:19,683 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/data/bedf84627/bc3a1827a21b490d8bfb37d0571da98c [2023-11-29 06:45:19,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:45:19,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:45:19,690 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:45:19,690 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:45:19,696 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:45:19,697 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:45:19" (1/1) ... [2023-11-29 06:45:19,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbcaa6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:19, skipping insertion in model container [2023-11-29 06:45:19,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:45:19" (1/1) ... [2023-11-29 06:45:19,733 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:45:19,919 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-73.i[913,926] [2023-11-29 06:45:19,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:45:19,986 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:45:20,003 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-73.i[913,926] [2023-11-29 06:45:20,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:45:20,056 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:45:20,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:20 WrapperNode [2023-11-29 06:45:20,056 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:45:20,058 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:45:20,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:45:20,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:45:20,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:20" (1/1) ... [2023-11-29 06:45:20,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:20" (1/1) ... [2023-11-29 06:45:20,127 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2023-11-29 06:45:20,127 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:45:20,128 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:45:20,129 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:45:20,129 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:45:20,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:20" (1/1) ... [2023-11-29 06:45:20,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:20" (1/1) ... [2023-11-29 06:45:20,149 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:20" (1/1) ... [2023-11-29 06:45:20,169 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 06:45:20,169 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:20" (1/1) ... [2023-11-29 06:45:20,170 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:20" (1/1) ... [2023-11-29 06:45:20,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:20" (1/1) ... [2023-11-29 06:45:20,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:20" (1/1) ... [2023-11-29 06:45:20,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:20" (1/1) ... [2023-11-29 06:45:20,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:20" (1/1) ... [2023-11-29 06:45:20,193 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:45:20,194 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:45:20,194 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:45:20,194 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:45:20,195 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:20" (1/1) ... [2023-11-29 06:45:20,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:45:20,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:45:20,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:45:20,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:45:20,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:45:20,284 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 06:45:20,284 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 06:45:20,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:45:20,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:45:20,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:45:20,377 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:45:20,380 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:45:20,714 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:45:20,775 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:45:20,775 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 06:45:20,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:45:20 BoogieIcfgContainer [2023-11-29 06:45:20,776 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:45:20,780 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:45:20,780 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:45:20,784 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:45:20,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:45:19" (1/3) ... [2023-11-29 06:45:20,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453e8993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:45:20, skipping insertion in model container [2023-11-29 06:45:20,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:20" (2/3) ... [2023-11-29 06:45:20,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453e8993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:45:20, skipping insertion in model container [2023-11-29 06:45:20,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:45:20" (3/3) ... [2023-11-29 06:45:20,788 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-73.i [2023-11-29 06:45:20,808 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:45:20,808 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:45:20,863 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:45:20,871 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5394716c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:45:20,871 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 06:45:20,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 29 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:45:20,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 06:45:20,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:45:20,891 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:20,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:45:20,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:20,897 INFO L85 PathProgramCache]: Analyzing trace with hash -2061904121, now seen corresponding path program 1 times [2023-11-29 06:45:20,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:45:20,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818088492] [2023-11-29 06:45:20,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:20,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:45:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:45:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 06:45:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:45:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 06:45:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 06:45:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 06:45:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 06:45:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 06:45:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-29 06:45:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 06:45:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 06:45:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 06:45:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 06:45:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 06:45:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 06:45:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,293 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 06:45:21,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:45:21,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818088492] [2023-11-29 06:45:21,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818088492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:45:21,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:45:21,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:45:21,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643416397] [2023-11-29 06:45:21,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:45:21,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:45:21,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:45:21,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:45:21,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:45:21,347 INFO L87 Difference]: Start difference. First operand has 46 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 29 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-29 06:45:21,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:45:21,397 INFO L93 Difference]: Finished difference Result 89 states and 153 transitions. [2023-11-29 06:45:21,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:45:21,405 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 94 [2023-11-29 06:45:21,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:45:21,419 INFO L225 Difference]: With dead ends: 89 [2023-11-29 06:45:21,419 INFO L226 Difference]: Without dead ends: 44 [2023-11-29 06:45:21,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:45:21,429 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:45:21,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:45:21,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-29 06:45:21,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-29 06:45:21,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:45:21,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 65 transitions. [2023-11-29 06:45:21,489 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 65 transitions. Word has length 94 [2023-11-29 06:45:21,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:45:21,490 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 65 transitions. [2023-11-29 06:45:21,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-29 06:45:21,491 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 65 transitions. [2023-11-29 06:45:21,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 06:45:21,498 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:45:21,498 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:21,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:45:21,499 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:45:21,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:21,500 INFO L85 PathProgramCache]: Analyzing trace with hash 709628301, now seen corresponding path program 1 times [2023-11-29 06:45:21,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:45:21,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116280811] [2023-11-29 06:45:21,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:21,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:45:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:45:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 06:45:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:45:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 06:45:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 06:45:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 06:45:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 06:45:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 06:45:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-29 06:45:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 06:45:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 06:45:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 06:45:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 06:45:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 06:45:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 06:45:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:21,976 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 06:45:21,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:45:21,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116280811] [2023-11-29 06:45:21,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116280811] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:45:21,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:45:21,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:45:21,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43111416] [2023-11-29 06:45:21,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:45:21,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:45:21,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:45:21,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:45:21,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:45:21,982 INFO L87 Difference]: Start difference. First operand 44 states and 65 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-29 06:45:22,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:45:22,024 INFO L93 Difference]: Finished difference Result 87 states and 129 transitions. [2023-11-29 06:45:22,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:45:22,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 94 [2023-11-29 06:45:22,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:45:22,029 INFO L225 Difference]: With dead ends: 87 [2023-11-29 06:45:22,029 INFO L226 Difference]: Without dead ends: 44 [2023-11-29 06:45:22,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:45:22,032 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 3 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:45:22,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 111 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:45:22,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-29 06:45:22,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-29 06:45:22,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:45:22,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 64 transitions. [2023-11-29 06:45:22,045 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 64 transitions. Word has length 94 [2023-11-29 06:45:22,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:45:22,048 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 64 transitions. [2023-11-29 06:45:22,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-29 06:45:22,048 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 64 transitions. [2023-11-29 06:45:22,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 06:45:22,051 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:45:22,051 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:22,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:45:22,052 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:45:22,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:22,053 INFO L85 PathProgramCache]: Analyzing trace with hash 514105839, now seen corresponding path program 1 times [2023-11-29 06:45:22,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:45:22,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033680242] [2023-11-29 06:45:22,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:22,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:45:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:22,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:45:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:22,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 06:45:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:22,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:45:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:22,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 06:45:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:22,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 06:45:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:22,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 06:45:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:22,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 06:45:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:22,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 06:45:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:22,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-29 06:45:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:22,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 06:45:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:22,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 06:45:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:22,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 06:45:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:22,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 06:45:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:22,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 06:45:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:22,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 06:45:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:22,182 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 06:45:22,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:45:22,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033680242] [2023-11-29 06:45:22,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033680242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:45:22,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:45:22,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:45:22,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3542137] [2023-11-29 06:45:22,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:45:22,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:45:22,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:45:22,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:45:22,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:45:22,186 INFO L87 Difference]: Start difference. First operand 44 states and 64 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-29 06:45:22,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:45:22,228 INFO L93 Difference]: Finished difference Result 99 states and 142 transitions. [2023-11-29 06:45:22,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:45:22,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2023-11-29 06:45:22,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:45:22,231 INFO L225 Difference]: With dead ends: 99 [2023-11-29 06:45:22,232 INFO L226 Difference]: Without dead ends: 56 [2023-11-29 06:45:22,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:45:22,234 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 8 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:45:22,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 113 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:45:22,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-29 06:45:22,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2023-11-29 06:45:22,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:45:22,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 71 transitions. [2023-11-29 06:45:22,248 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 71 transitions. Word has length 95 [2023-11-29 06:45:22,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:45:22,249 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 71 transitions. [2023-11-29 06:45:22,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-29 06:45:22,250 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 71 transitions. [2023-11-29 06:45:22,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 06:45:22,252 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:45:22,253 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:22,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:45:22,253 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:45:22,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:22,254 INFO L85 PathProgramCache]: Analyzing trace with hash 514165421, now seen corresponding path program 1 times [2023-11-29 06:45:22,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:45:22,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133701748] [2023-11-29 06:45:22,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:22,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:45:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:45:22,324 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:45:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:45:22,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:45:22,393 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:45:22,394 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 06:45:22,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:45:22,399 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-29 06:45:22,403 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:45:22,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:45:22 BoogieIcfgContainer [2023-11-29 06:45:22,478 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:45:22,479 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:45:22,479 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:45:22,480 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:45:22,480 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:45:20" (3/4) ... [2023-11-29 06:45:22,483 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 06:45:22,484 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:45:22,486 INFO L158 Benchmark]: Toolchain (without parser) took 2797.53ms. Allocated memory was 123.7MB in the beginning and 172.0MB in the end (delta: 48.2MB). Free memory was 78.0MB in the beginning and 69.4MB in the end (delta: 8.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-11-29 06:45:22,486 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 123.7MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:45:22,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.41ms. Allocated memory is still 123.7MB. Free memory was 77.8MB in the beginning and 65.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 06:45:22,487 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.77ms. Allocated memory is still 123.7MB. Free memory was 65.2MB in the beginning and 62.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:45:22,488 INFO L158 Benchmark]: Boogie Preprocessor took 64.61ms. Allocated memory is still 123.7MB. Free memory was 62.3MB in the beginning and 58.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:45:22,489 INFO L158 Benchmark]: RCFGBuilder took 582.28ms. Allocated memory was 123.7MB in the beginning and 172.0MB in the end (delta: 48.2MB). Free memory was 58.1MB in the beginning and 136.9MB in the end (delta: -78.8MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2023-11-29 06:45:22,489 INFO L158 Benchmark]: TraceAbstraction took 1698.24ms. Allocated memory is still 172.0MB. Free memory was 136.9MB in the beginning and 69.4MB in the end (delta: 67.5MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2023-11-29 06:45:22,490 INFO L158 Benchmark]: Witness Printer took 5.45ms. Allocated memory is still 172.0MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:45:22,493 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 123.7MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.41ms. Allocated memory is still 123.7MB. Free memory was 77.8MB in the beginning and 65.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.77ms. Allocated memory is still 123.7MB. Free memory was 65.2MB in the beginning and 62.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.61ms. Allocated memory is still 123.7MB. Free memory was 62.3MB in the beginning and 58.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 582.28ms. Allocated memory was 123.7MB in the beginning and 172.0MB in the end (delta: 48.2MB). Free memory was 58.1MB in the beginning and 136.9MB in the end (delta: -78.8MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1698.24ms. Allocated memory is still 172.0MB. Free memory was 136.9MB in the beginning and 69.4MB in the end (delta: 67.5MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Witness Printer took 5.45ms. Allocated memory is still 172.0MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryFLOATComparisonOperation at line 101, overapproximation of someUnaryDOUBLEoperation at line 24. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 5.5; [L23] unsigned char var_1_6 = 1; [L24] double var_1_7 = -0.41; [L25] unsigned char var_1_8 = 25; [L26] unsigned char var_1_9 = 100; [L27] unsigned char var_1_10 = 1; [L28] float var_1_12 = 15.75; [L29] float var_1_13 = 1.6; [L30] unsigned char var_1_14 = 0; [L31] unsigned char var_1_15 = 0; [L32] float var_1_16 = 16.5; [L33] signed char var_1_17 = 10; [L34] signed char var_1_18 = -10; [L35] signed long int var_1_19 = -16; [L36] float last_1_var_1_12 = 15.75; [L105] isInitial = 1 [L106] FCALL initially() [L107] COND TRUE 1 [L108] CALL updateLastVariables() [L98] last_1_var_1_12 = var_1_12 [L108] RET updateLastVariables() [L109] CALL updateVariables() [L72] var_1_6 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=1, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_8=25, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=1, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_8=25, var_1_9=100] [L73] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=1, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_8=25, var_1_9=100] [L74] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=1, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=1, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L74] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=1, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L75] var_1_7 = __VERIFIER_nondet_double() [L76] CALL assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=1, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=1, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L76] RET assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=1, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L77] var_1_9 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=1, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=1, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25] [L78] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=1, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25] [L79] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=1, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=1, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L79] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=1, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L80] var_1_10 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=63/4, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=63/4, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L81] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_12=63/4, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L82] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L82] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_13=8/5, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L83] var_1_13 = __VERIFIER_nondet_float() [L84] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L84] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=0, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L85] var_1_14 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L86] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L87] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L87] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=0, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L88] var_1_15 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L89] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L90] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=1, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=1, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L90] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=1, var_1_16=33/2, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L91] var_1_16 = __VERIFIER_nondet_float() [L92] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=1, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=1, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L92] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=1, var_1_17=10, var_1_18=-10, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L93] var_1_18 = __VERIFIER_nondet_char() [L94] CALL assume_abort_if_not(var_1_18 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=1, var_1_17=10, var_1_18=126, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=1, var_1_17=10, var_1_18=126, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L94] RET assume_abort_if_not(var_1_18 >= -127) VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=1, var_1_17=10, var_1_18=126, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L95] CALL assume_abort_if_not(var_1_18 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=1, var_1_17=10, var_1_18=126, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=1, var_1_17=10, var_1_18=126, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L95] RET assume_abort_if_not(var_1_18 <= 126) VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=1, var_1_17=10, var_1_18=126, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=0] [L109] RET updateVariables() [L110] CALL step() [L40] COND TRUE \read(var_1_6) [L41] var_1_8 = ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))) VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=1, var_1_17=10, var_1_18=126, var_1_19=-16, var_1_1=11/2, var_1_6=1, var_1_8=0, var_1_9=0] [L47] var_1_19 = var_1_8 VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=63/4, var_1_14=1, var_1_15=1, var_1_17=10, var_1_18=126, var_1_19=0, var_1_1=11/2, var_1_6=1, var_1_8=0, var_1_9=0] [L48] COND FALSE !(var_1_19 > var_1_9) [L59] var_1_12 = var_1_13 VAL [isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=131, var_1_13=131, var_1_14=1, var_1_15=1, var_1_17=10, var_1_18=126, var_1_19=0, var_1_1=11/2, var_1_6=1, var_1_8=0, var_1_9=0] [L61] signed long int stepLocal_0 = (((var_1_8) > ((var_1_8 + var_1_19))) ? (var_1_8) : ((var_1_8 + var_1_19))); VAL [isInitial=1, last_1_var_1_12=63/4, stepLocal_0=0, var_1_10=0, var_1_12=131, var_1_13=131, var_1_14=1, var_1_15=1, var_1_17=10, var_1_18=126, var_1_19=0, var_1_1=11/2, var_1_6=1, var_1_8=0, var_1_9=0] [L62] COND TRUE var_1_8 <= stepLocal_0 VAL [isInitial=1, last_1_var_1_12=63/4, stepLocal_0=0, var_1_10=0, var_1_12=131, var_1_13=131, var_1_14=1, var_1_15=1, var_1_17=10, var_1_18=126, var_1_19=0, var_1_1=11/2, var_1_6=1, var_1_8=0, var_1_9=0] [L63] COND FALSE !(! var_1_6) [L66] var_1_1 = var_1_7 VAL [isInitial=1, last_1_var_1_12=63/4, stepLocal_0=0, var_1_10=0, var_1_12=131, var_1_13=131, var_1_14=1, var_1_15=1, var_1_17=10, var_1_18=126, var_1_19=0, var_1_1=132, var_1_6=1, var_1_7=132, var_1_8=0, var_1_9=0] [L69] var_1_17 = var_1_18 [L110] RET step() [L111] CALL, EXPR property() [L101-L102] return (((((var_1_8 <= ((((var_1_8) > ((var_1_8 + var_1_19))) ? (var_1_8) : ((var_1_8 + var_1_19))))) ? ((! var_1_6) ? (var_1_1 == ((double) var_1_7)) : (var_1_1 == ((double) var_1_7))) : 1) && (var_1_6 ? (var_1_8 == ((unsigned char) ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))))) : ((last_1_var_1_12 < (last_1_var_1_12 + var_1_7)) ? (var_1_8 == ((unsigned char) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1))) && ((var_1_19 > var_1_9) ? (var_1_6 ? (var_1_12 == ((float) (var_1_13 - ((((99999.25f) < 0 ) ? -(99999.25f) : (99999.25f)))))) : ((var_1_14 && var_1_15) ? (var_1_12 == ((float) (var_1_13 - var_1_16))) : (var_1_12 == ((float) var_1_16)))) : (var_1_12 == ((float) var_1_13)))) && (var_1_17 == ((signed char) var_1_18))) && (var_1_19 == ((signed long int) var_1_8)) ; [L111] RET, EXPR property() [L111] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=131, var_1_13=131, var_1_14=1, var_1_15=1, var_1_17=126, var_1_18=126, var_1_19=0, var_1_1=132, var_1_6=1, var_1_7=132, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=63/4, var_1_10=0, var_1_12=131, var_1_13=131, var_1_14=1, var_1_15=1, var_1_17=126, var_1_18=126, var_1_19=0, var_1_1=132, var_1_6=1, var_1_7=132, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 286 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 105 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 181 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=3, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 378 NumberOfCodeBlocks, 378 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 345 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1260/1260 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 06:45:22,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-73.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f92f77375779269f33d6d08378e9440b45a9cd84382d3de78a8a10074b76e7bc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:45:24,525 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:45:24,596 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 06:45:24,610 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:45:24,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:45:24,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:45:24,641 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:45:24,641 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:45:24,642 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:45:24,642 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:45:24,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:45:24,644 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:45:24,644 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:45:24,645 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:45:24,646 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:45:24,646 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:45:24,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:45:24,647 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:45:24,648 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:45:24,649 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:45:24,649 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:45:24,650 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:45:24,650 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:45:24,651 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 06:45:24,651 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 06:45:24,651 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 06:45:24,652 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:45:24,652 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:45:24,652 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:45:24,653 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:45:24,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:45:24,654 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:45:24,654 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:45:24,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:45:24,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:45:24,655 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:45:24,655 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:45:24,655 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 06:45:24,655 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 06:45:24,656 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:45:24,656 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:45:24,656 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:45:24,656 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:45:24,657 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:45:24,657 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 06:45:24,657 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f92f77375779269f33d6d08378e9440b45a9cd84382d3de78a8a10074b76e7bc [2023-11-29 06:45:25,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:45:25,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:45:25,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:45:25,052 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:45:25,052 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:45:25,054 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-73.i [2023-11-29 06:45:27,959 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:45:28,230 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:45:28,231 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-73.i [2023-11-29 06:45:28,243 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/data/880c62291/512492e67c244bf8820732873b67f4dd/FLAG369f5a51c [2023-11-29 06:45:28,262 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/data/880c62291/512492e67c244bf8820732873b67f4dd [2023-11-29 06:45:28,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:45:28,268 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:45:28,269 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:45:28,269 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:45:28,276 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:45:28,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:45:28" (1/1) ... [2023-11-29 06:45:28,278 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68d57008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:28, skipping insertion in model container [2023-11-29 06:45:28,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:45:28" (1/1) ... [2023-11-29 06:45:28,314 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:45:28,484 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-73.i[913,926] [2023-11-29 06:45:28,536 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:45:28,557 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:45:28,570 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-73.i[913,926] [2023-11-29 06:45:28,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:45:28,621 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:45:28,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:28 WrapperNode [2023-11-29 06:45:28,621 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:45:28,623 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:45:28,623 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:45:28,623 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:45:28,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:28" (1/1) ... [2023-11-29 06:45:28,643 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:28" (1/1) ... [2023-11-29 06:45:28,674 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2023-11-29 06:45:28,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:45:28,675 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:45:28,675 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:45:28,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:45:28,687 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:28" (1/1) ... [2023-11-29 06:45:28,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:28" (1/1) ... [2023-11-29 06:45:28,693 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:28" (1/1) ... [2023-11-29 06:45:28,709 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 06:45:28,710 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:28" (1/1) ... [2023-11-29 06:45:28,710 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:28" (1/1) ... [2023-11-29 06:45:28,721 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:28" (1/1) ... [2023-11-29 06:45:28,726 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:28" (1/1) ... [2023-11-29 06:45:28,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:28" (1/1) ... [2023-11-29 06:45:28,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:28" (1/1) ... [2023-11-29 06:45:28,738 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:45:28,739 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:45:28,739 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:45:28,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:45:28,741 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:28" (1/1) ... [2023-11-29 06:45:28,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:45:28,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:45:28,773 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:45:28,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:45:28,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:45:28,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 06:45:28,849 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 06:45:28,849 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 06:45:28,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:45:28,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:45:28,951 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:45:28,953 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:45:31,951 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:45:32,013 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:45:32,014 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 06:45:32,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:45:32 BoogieIcfgContainer [2023-11-29 06:45:32,014 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:45:32,017 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:45:32,017 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:45:32,020 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:45:32,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:45:28" (1/3) ... [2023-11-29 06:45:32,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196cd7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:45:32, skipping insertion in model container [2023-11-29 06:45:32,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:45:28" (2/3) ... [2023-11-29 06:45:32,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196cd7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:45:32, skipping insertion in model container [2023-11-29 06:45:32,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:45:32" (3/3) ... [2023-11-29 06:45:32,024 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-73.i [2023-11-29 06:45:32,043 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:45:32,044 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:45:32,094 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:45:32,101 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1c869eee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:45:32,102 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 06:45:32,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 29 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:45:32,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 06:45:32,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:45:32,123 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:32,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:45:32,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:32,131 INFO L85 PathProgramCache]: Analyzing trace with hash -2061904121, now seen corresponding path program 1 times [2023-11-29 06:45:32,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:45:32,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891772940] [2023-11-29 06:45:32,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:32,150 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:45:32,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:45:32,152 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:45:32,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 06:45:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:32,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 06:45:32,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:45:32,561 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-11-29 06:45:32,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:45:32,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:45:32,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891772940] [2023-11-29 06:45:32,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891772940] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:45:32,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:45:32,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:45:32,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97014891] [2023-11-29 06:45:32,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:45:32,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:45:32,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:45:32,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:45:32,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:45:32,624 INFO L87 Difference]: Start difference. First operand has 46 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 29 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-29 06:45:34,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 06:45:34,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:45:34,183 INFO L93 Difference]: Finished difference Result 89 states and 153 transitions. [2023-11-29 06:45:34,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:45:34,206 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 94 [2023-11-29 06:45:34,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:45:34,212 INFO L225 Difference]: With dead ends: 89 [2023-11-29 06:45:34,213 INFO L226 Difference]: Without dead ends: 44 [2023-11-29 06:45:34,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:45:34,219 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:45:34,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 06:45:34,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-29 06:45:34,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-29 06:45:34,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:45:34,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 65 transitions. [2023-11-29 06:45:34,262 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 65 transitions. Word has length 94 [2023-11-29 06:45:34,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:45:34,263 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 65 transitions. [2023-11-29 06:45:34,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-29 06:45:34,264 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 65 transitions. [2023-11-29 06:45:34,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 06:45:34,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:45:34,270 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:34,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:45:34,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:45:34,471 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:45:34,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:34,472 INFO L85 PathProgramCache]: Analyzing trace with hash 709628301, now seen corresponding path program 1 times [2023-11-29 06:45:34,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:45:34,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958505752] [2023-11-29 06:45:34,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:34,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:45:34,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:45:34,476 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:45:34,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 06:45:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:34,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:45:34,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:45:34,954 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 06:45:34,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:45:34,955 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:45:34,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958505752] [2023-11-29 06:45:34,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958505752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:45:34,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:45:34,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:45:34,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320309980] [2023-11-29 06:45:34,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:45:34,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:45:34,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:45:34,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:45:34,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:45:34,961 INFO L87 Difference]: Start difference. First operand 44 states and 65 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-29 06:45:37,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 06:45:37,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:45:37,968 INFO L93 Difference]: Finished difference Result 119 states and 177 transitions. [2023-11-29 06:45:37,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:45:37,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 94 [2023-11-29 06:45:37,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:45:37,973 INFO L225 Difference]: With dead ends: 119 [2023-11-29 06:45:37,973 INFO L226 Difference]: Without dead ends: 76 [2023-11-29 06:45:37,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:45:37,976 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 62 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:45:37,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 211 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 06:45:37,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-29 06:45:37,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 44. [2023-11-29 06:45:37,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:45:37,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 64 transitions. [2023-11-29 06:45:37,993 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 64 transitions. Word has length 94 [2023-11-29 06:45:37,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:45:37,996 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 64 transitions. [2023-11-29 06:45:37,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-29 06:45:37,996 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 64 transitions. [2023-11-29 06:45:37,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 06:45:37,999 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:45:37,999 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:38,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 06:45:38,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:45:38,203 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:45:38,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:38,204 INFO L85 PathProgramCache]: Analyzing trace with hash 514105839, now seen corresponding path program 1 times [2023-11-29 06:45:38,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:45:38,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667136510] [2023-11-29 06:45:38,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:38,206 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:45:38,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:45:38,208 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:45:38,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 06:45:38,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:38,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:45:38,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:45:38,605 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 06:45:38,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:45:38,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:45:38,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667136510] [2023-11-29 06:45:38,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1667136510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:45:38,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:45:38,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:45:38,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66713663] [2023-11-29 06:45:38,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:45:38,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:45:38,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:45:38,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:45:38,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:45:38,610 INFO L87 Difference]: Start difference. First operand 44 states and 64 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-29 06:45:40,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 06:45:41,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 06:45:41,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:45:41,214 INFO L93 Difference]: Finished difference Result 99 states and 142 transitions. [2023-11-29 06:45:41,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:45:41,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2023-11-29 06:45:41,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:45:41,236 INFO L225 Difference]: With dead ends: 99 [2023-11-29 06:45:41,237 INFO L226 Difference]: Without dead ends: 56 [2023-11-29 06:45:41,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:45:41,239 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 8 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:45:41,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 112 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 06:45:41,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-29 06:45:41,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2023-11-29 06:45:41,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:45:41,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 71 transitions. [2023-11-29 06:45:41,248 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 71 transitions. Word has length 95 [2023-11-29 06:45:41,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:45:41,249 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 71 transitions. [2023-11-29 06:45:41,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-29 06:45:41,249 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 71 transitions. [2023-11-29 06:45:41,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 06:45:41,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:45:41,251 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:41,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 06:45:41,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:45:41,452 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:45:41,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:41,453 INFO L85 PathProgramCache]: Analyzing trace with hash 514165421, now seen corresponding path program 1 times [2023-11-29 06:45:41,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:45:41,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836559548] [2023-11-29 06:45:41,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:41,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:45:41,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:45:41,455 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:45:41,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_390d1d68-819d-4c98-914b-5b3016e0c7bb/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 06:45:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:41,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 06:45:41,818 INFO L285 TraceCheckSpWp]: Computing forward predicates...