./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-74.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_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-74.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme --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 a6d265bdbc1a49c23f97435873a48e7440ae9d92d59f2c53ecf9705b5276f1aa --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:51:43,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:51:43,711 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:51:43,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:51:43,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:51:43,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:51:43,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:51:43,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:51:43,744 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:51:43,744 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:51:43,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:51:43,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:51:43,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:51:43,747 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:51:43,747 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:51:43,748 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:51:43,748 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:51:43,749 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:51:43,749 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:51:43,750 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:51:43,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:51:43,754 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:51:43,754 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:51:43,754 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:51:43,755 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:51:43,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:51:43,756 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:51:43,756 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:51:43,757 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:51:43,757 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:51:43,758 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:51:43,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:43,760 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:51:43,760 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:51:43,760 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:51:43,760 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:51:43,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:51:43,761 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:51:43,761 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:51:43,761 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:51:43,761 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:51:43,762 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:51:43,762 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_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6d265bdbc1a49c23f97435873a48e7440ae9d92d59f2c53ecf9705b5276f1aa [2023-11-26 11:51:44,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:51:44,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:51:44,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:51:44,138 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:51:44,139 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:51:44,141 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-74.i [2023-11-26 11:51:47,289 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:51:47,556 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:51:47,558 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-74.i [2023-11-26 11:51:47,569 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/data/5c5211724/069ab456ef4943d69c562dc9caf94bfd/FLAG464829fb1 [2023-11-26 11:51:47,584 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/data/5c5211724/069ab456ef4943d69c562dc9caf94bfd [2023-11-26 11:51:47,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:51:47,594 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:51:47,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:47,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:51:47,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:51:47,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f673e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47, skipping insertion in model container [2023-11-26 11:51:47,606 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,651 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:51:47,791 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_ea0fd855-392b-4fa0-857f-9757c9cc1336/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-74.i[913,926] [2023-11-26 11:51:47,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:47,845 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:51:47,857 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_ea0fd855-392b-4fa0-857f-9757c9cc1336/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-74.i[913,926] [2023-11-26 11:51:47,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:47,898 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:51:47,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47 WrapperNode [2023-11-26 11:51:47,899 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:47,900 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:47,900 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:51:47,901 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:51:47,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,920 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,953 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2023-11-26 11:51:47,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:47,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:51:47,954 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:51:47,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:51:47,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,977 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,991 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]. [2023-11-26 11:51:47,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:48,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:48,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:48,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:48,009 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:51:48,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:51:48,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:51:48,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:51:48,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:48,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:48,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:48,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:48,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:51:48,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:51:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:51:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:51:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:51:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:51:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:51:48,223 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:51:48,225 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:51:48,563 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:51:48,658 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:51:48,659 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:51:48,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:48 BoogieIcfgContainer [2023-11-26 11:51:48,659 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:51:48,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:51:48,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:51:48,666 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:51:48,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:51:47" (1/3) ... [2023-11-26 11:51:48,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b061a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:48, skipping insertion in model container [2023-11-26 11:51:48,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (2/3) ... [2023-11-26 11:51:48,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b061a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:48, skipping insertion in model container [2023-11-26 11:51:48,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:48" (3/3) ... [2023-11-26 11:51:48,672 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-74.i [2023-11-26 11:51:48,687 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:51:48,687 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:51:48,732 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:51:48,738 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;@347fa932, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:51:48,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:51:48,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-26 11:51:48,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-26 11:51:48,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:48,755 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:48,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:48,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:48,760 INFO L85 PathProgramCache]: Analyzing trace with hash -162583371, now seen corresponding path program 1 times [2023-11-26 11:51:48,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:48,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878754955] [2023-11-26 11:51:48,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:48,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:51:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:51:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:51:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 11:51:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 11:51:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-26 11:51:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-26 11:51:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 11:51:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 11:51:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 11:51:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-26 11:51:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 11:51:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 11:51:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-26 11:51:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-26 11:51:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-26 11:51:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-26 11:51:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,162 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-26 11:51:49,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:49,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878754955] [2023-11-26 11:51:49,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878754955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:49,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:49,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:49,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217110368] [2023-11-26 11:51:49,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:49,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:51:49,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:49,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:51:49,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:51:49,221 INFO L87 Difference]: Start difference. First operand has 48 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-26 11:51:49,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:49,268 INFO L93 Difference]: Finished difference Result 93 states and 161 transitions. [2023-11-26 11:51:49,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:51:49,276 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 105 [2023-11-26 11:51:49,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:49,291 INFO L225 Difference]: With dead ends: 93 [2023-11-26 11:51:49,291 INFO L226 Difference]: Without dead ends: 46 [2023-11-26 11:51:49,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:51:49,303 INFO L413 NwaCegarLoop]: 65 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, 65 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 [2023-11-26 11:51:49,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:51:49,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-26 11:51:49,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-26 11:51:49,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-26 11:51:49,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 68 transitions. [2023-11-26 11:51:49,368 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 68 transitions. Word has length 105 [2023-11-26 11:51:49,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:49,369 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 68 transitions. [2023-11-26 11:51:49,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-26 11:51:49,370 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 68 transitions. [2023-11-26 11:51:49,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-26 11:51:49,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:49,375 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:49,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:51:49,376 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:49,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:49,377 INFO L85 PathProgramCache]: Analyzing trace with hash 529998271, now seen corresponding path program 1 times [2023-11-26 11:51:49,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:49,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964778209] [2023-11-26 11:51:49,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:49,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:51:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:51:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:51:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 11:51:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 11:51:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-26 11:51:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-26 11:51:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 11:51:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 11:51:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 11:51:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-26 11:51:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 11:51:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 11:51:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-26 11:51:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-26 11:51:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-26 11:51:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-26 11:51:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,505 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-26 11:51:50,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:50,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964778209] [2023-11-26 11:51:50,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964778209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:50,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:50,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:51:50,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275805063] [2023-11-26 11:51:50,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:50,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:51:50,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:50,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:51:50,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:51:50,511 INFO L87 Difference]: Start difference. First operand 46 states and 68 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 11:51:50,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:50,766 INFO L93 Difference]: Finished difference Result 137 states and 203 transitions. [2023-11-26 11:51:50,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:51:50,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 105 [2023-11-26 11:51:50,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:50,771 INFO L225 Difference]: With dead ends: 137 [2023-11-26 11:51:50,772 INFO L226 Difference]: Without dead ends: 92 [2023-11-26 11:51:50,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:51:50,777 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 38 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:50,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 217 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:51:50,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-26 11:51:50,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 80. [2023-11-26 11:51:50,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-26 11:51:50,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 118 transitions. [2023-11-26 11:51:50,811 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 118 transitions. Word has length 105 [2023-11-26 11:51:50,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:50,812 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 118 transitions. [2023-11-26 11:51:50,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 11:51:50,813 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 118 transitions. [2023-11-26 11:51:50,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-26 11:51:50,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:50,816 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:50,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:51:50,816 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:50,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:50,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1245009091, now seen corresponding path program 1 times [2023-11-26 11:51:50,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:50,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621711267] [2023-11-26 11:51:50,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:50,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:51,022 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:51,220 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:51,222 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:51:51,224 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:51:51,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:51:51,231 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 11:51:51,236 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:51:51,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:51:51 BoogieIcfgContainer [2023-11-26 11:51:51,374 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:51:51,375 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:51:51,375 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:51:51,376 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:51:51,377 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:48" (3/4) ... [2023-11-26 11:51:51,379 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:51:51,381 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:51:51,382 INFO L158 Benchmark]: Toolchain (without parser) took 3787.20ms. Allocated memory is still 184.5MB. Free memory was 147.9MB in the beginning and 146.2MB in the end (delta: 1.7MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2023-11-26 11:51:51,382 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 184.5MB. Free memory is still 160.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:51,383 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.41ms. Allocated memory is still 184.5MB. Free memory was 147.9MB in the beginning and 135.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:51:51,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.52ms. Allocated memory is still 184.5MB. Free memory was 135.3MB in the beginning and 133.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:51,393 INFO L158 Benchmark]: Boogie Preprocessor took 54.69ms. Allocated memory is still 184.5MB. Free memory was 133.2MB in the beginning and 130.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:51,395 INFO L158 Benchmark]: RCFGBuilder took 649.69ms. Allocated memory is still 184.5MB. Free memory was 130.4MB in the beginning and 112.9MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 11:51:51,396 INFO L158 Benchmark]: TraceAbstraction took 2712.48ms. Allocated memory is still 184.5MB. Free memory was 112.2MB in the beginning and 147.2MB in the end (delta: -35.0MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2023-11-26 11:51:51,396 INFO L158 Benchmark]: Witness Printer took 5.70ms. Allocated memory is still 184.5MB. Free memory was 147.2MB in the beginning and 146.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:51,399 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 184.5MB. Free memory is still 160.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.41ms. Allocated memory is still 184.5MB. Free memory was 147.9MB in the beginning and 135.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.52ms. Allocated memory is still 184.5MB. Free memory was 135.3MB in the beginning and 133.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.69ms. Allocated memory is still 184.5MB. Free memory was 133.2MB in the beginning and 130.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 649.69ms. Allocated memory is still 184.5MB. Free memory was 130.4MB in the beginning and 112.9MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2712.48ms. Allocated memory is still 184.5MB. Free memory was 112.2MB in the beginning and 147.2MB in the end (delta: -35.0MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. * Witness Printer took 5.70ms. Allocated memory is still 184.5MB. Free memory was 147.2MB in the beginning and 146.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 104. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 25; [L23] double var_1_2 = 63.25; [L24] double var_1_3 = 3.779; [L25] double var_1_4 = 31.6; [L26] double var_1_5 = 100.5; [L27] unsigned long int var_1_6 = 64; [L28] unsigned long int var_1_7 = 3150951169; [L29] unsigned long int var_1_8 = 128; [L30] unsigned long int var_1_9 = 1; [L31] unsigned char var_1_10 = 1; [L32] double var_1_11 = 9.3; [L33] unsigned char var_1_14 = 0; [L34] unsigned char var_1_15 = 1; [L35] unsigned char var_1_16 = 1; [L36] unsigned char last_1_var_1_16 = 1; [L108] isInitial = 1 [L109] FCALL initially() [L110] COND TRUE 1 [L111] CALL updateLastVariables() [L101] last_1_var_1_16 = var_1_16 [L111] RET updateLastVariables() [L112] CALL updateVariables() [L71] var_1_2 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_3=3779/1000, var_1_4=158/5, var_1_5=201/2, var_1_6=64, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_3=3779/1000, var_1_4=158/5, var_1_5=201/2, var_1_6=64, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L72] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_3=3779/1000, var_1_4=158/5, var_1_5=201/2, var_1_6=64, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L73] var_1_3 = __VERIFIER_nondet_double() [L74] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_4=158/5, var_1_5=201/2, var_1_6=64, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_4=158/5, var_1_5=201/2, var_1_6=64, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L74] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_4=158/5, var_1_5=201/2, var_1_6=64, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L75] var_1_4 = __VERIFIER_nondet_double() [L76] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_5=201/2, var_1_6=64, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_5=201/2, var_1_6=64, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L76] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_5=201/2, var_1_6=64, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L77] var_1_5 = __VERIFIER_nondet_double() [L78] CALL assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=64, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=64, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L78] RET assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=64, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L79] var_1_6 = __VERIFIER_nondet_ulong() [L80] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L80] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L81] CALL assume_abort_if_not(var_1_6 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L81] RET assume_abort_if_not(var_1_6 <= 4294967294) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=3150951169, var_1_8=128, var_1_9=1] [L82] var_1_7 = __VERIFIER_nondet_ulong() [L83] CALL assume_abort_if_not(var_1_7 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=128, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=128, var_1_9=1] [L83] RET assume_abort_if_not(var_1_7 >= 2147483647) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=128, var_1_9=1] [L84] CALL assume_abort_if_not(var_1_7 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=128, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=128, var_1_9=1] [L84] RET assume_abort_if_not(var_1_7 <= 4294967294) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=128, var_1_9=1] [L85] var_1_8 = __VERIFIER_nondet_ulong() [L86] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_9=1] [L86] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_9=1] [L87] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=1] [L87] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=1] [L88] var_1_9 = __VERIFIER_nondet_ulong() [L89] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647] [L89] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647] [L90] CALL assume_abort_if_not(var_1_9 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L90] RET assume_abort_if_not(var_1_9 <= 4294967294) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_11=93/10, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L91] var_1_11 = __VERIFIER_nondet_double() [L92] CALL assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L92] RET assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L93] var_1_14 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L94] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L95] CALL assume_abort_if_not(var_1_14 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L95] RET assume_abort_if_not(var_1_14 <= 0) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L96] var_1_15 = __VERIFIER_nondet_uchar() [L97] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L97] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L98] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L98] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, last_1_var_1_16=1, var_1_10=1, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L112] RET updateVariables() [L113] CALL step() [L40] unsigned char stepLocal_0 = last_1_var_1_16 && last_1_var_1_16; VAL [isInitial=1, last_1_var_1_16=1, stepLocal_0=1, var_1_10=1, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L41] COND TRUE (var_1_5 > var_1_11) || stepLocal_0 [L42] var_1_10 = var_1_14 VAL [isInitial=1, last_1_var_1_16=1, stepLocal_0=1, var_1_10=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L46] unsigned char stepLocal_1 = var_1_10; VAL [isInitial=1, last_1_var_1_16=1, stepLocal_0=1, stepLocal_1=0, var_1_10=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L47] COND FALSE !(stepLocal_1 && var_1_10) [L54] var_1_16 = var_1_15 VAL [isInitial=1, last_1_var_1_16=1, stepLocal_0=1, stepLocal_1=0, var_1_10=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=25, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L56] COND TRUE ((((((((var_1_2) > (var_1_3)) ? (var_1_2) : (var_1_3)))) < (var_1_4)) ? (((((var_1_2) > (var_1_3)) ? (var_1_2) : (var_1_3)))) : (var_1_4))) < var_1_5 [L57] var_1_1 = ((((var_1_6) > ((var_1_7 - var_1_8))) ? (var_1_6) : ((var_1_7 - var_1_8)))) VAL [isInitial=1, last_1_var_1_16=1, stepLocal_0=1, stepLocal_1=0, var_1_10=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=4294967294, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L113] RET step() [L114] CALL, EXPR property() [L104-L105] return (((((((((((var_1_2) > (var_1_3)) ? (var_1_2) : (var_1_3)))) < (var_1_4)) ? (((((var_1_2) > (var_1_3)) ? (var_1_2) : (var_1_3)))) : (var_1_4))) < var_1_5) ? (var_1_1 == ((unsigned long int) ((((var_1_6) > ((var_1_7 - var_1_8))) ? (var_1_6) : ((var_1_7 - var_1_8)))))) : ((var_1_2 >= (var_1_3 + var_1_5)) ? ((var_1_4 > (- var_1_5)) ? (var_1_1 == ((unsigned long int) var_1_6)) : (var_1_1 == ((unsigned long int) var_1_9))) : (var_1_1 == ((unsigned long int) var_1_6)))) && (((var_1_5 > var_1_11) || (last_1_var_1_16 && last_1_var_1_16)) ? (var_1_10 == ((unsigned char) var_1_14)) : (var_1_10 == ((unsigned char) (var_1_14 && (! var_1_15)))))) && ((var_1_10 && var_1_10) ? ((var_1_4 < (- var_1_5)) ? (var_1_16 == ((unsigned char) var_1_15)) : (var_1_16 == ((unsigned char) var_1_15))) : (var_1_16 == ((unsigned char) var_1_15))) ; [L114] RET, EXPR property() [L114] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_16=1, var_1_10=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=4294967294, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_16=1, var_1_10=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_1=4294967294, var_1_6=4294967294, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 282 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 154 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 128 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=2, 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, 2 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 315 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 272 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1088/1088 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 [2023-11-26 11:51:51,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/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_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-74.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme --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 a6d265bdbc1a49c23f97435873a48e7440ae9d92d59f2c53ecf9705b5276f1aa --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:51:54,358 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:51:54,500 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 11:51:54,509 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:51:54,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:51:54,557 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:51:54,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:51:54,558 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:51:54,559 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:51:54,564 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:51:54,565 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:51:54,565 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:51:54,566 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:51:54,568 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:51:54,568 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:51:54,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:51:54,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:51:54,570 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:51:54,570 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:51:54,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:51:54,572 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:51:54,572 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:51:54,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:51:54,573 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:51:54,573 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:51:54,574 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:51:54,574 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:51:54,574 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:51:54,575 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:51:54,575 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:51:54,577 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:51:54,577 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:51:54,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:51:54,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:54,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:51:54,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:51:54,581 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:51:54,581 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:51:54,582 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:51:54,582 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:51:54,582 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:51:54,582 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:51:54,582 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:51:54,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:51:54,583 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:51:54,583 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_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6d265bdbc1a49c23f97435873a48e7440ae9d92d59f2c53ecf9705b5276f1aa [2023-11-26 11:51:55,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:51:55,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:51:55,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:51:55,058 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:51:55,059 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:51:55,062 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-74.i [2023-11-26 11:51:58,322 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:51:58,658 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:51:58,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-74.i [2023-11-26 11:51:58,671 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/data/a42a9ed6c/a57ed9cd449741c9b738d1a5ba199c01/FLAG98bef9e7b [2023-11-26 11:51:58,915 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/data/a42a9ed6c/a57ed9cd449741c9b738d1a5ba199c01 [2023-11-26 11:51:58,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:51:58,918 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:51:58,920 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:58,920 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:51:58,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:51:58,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:58" (1/1) ... [2023-11-26 11:51:58,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c6ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:58, skipping insertion in model container [2023-11-26 11:51:58,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:58" (1/1) ... [2023-11-26 11:51:58,962 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:51:59,121 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_ea0fd855-392b-4fa0-857f-9757c9cc1336/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-74.i[913,926] [2023-11-26 11:51:59,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:59,186 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:51:59,202 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_ea0fd855-392b-4fa0-857f-9757c9cc1336/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-74.i[913,926] [2023-11-26 11:51:59,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:59,252 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:51:59,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:59 WrapperNode [2023-11-26 11:51:59,253 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:59,255 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:59,255 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:51:59,255 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:51:59,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:59" (1/1) ... [2023-11-26 11:51:59,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:59" (1/1) ... [2023-11-26 11:51:59,310 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2023-11-26 11:51:59,310 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:59,311 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:51:59,312 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:51:59,312 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:51:59,325 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:59" (1/1) ... [2023-11-26 11:51:59,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:59" (1/1) ... [2023-11-26 11:51:59,331 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:59" (1/1) ... [2023-11-26 11:51:59,346 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]. [2023-11-26 11:51:59,347 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:59" (1/1) ... [2023-11-26 11:51:59,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:59" (1/1) ... [2023-11-26 11:51:59,358 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:59" (1/1) ... [2023-11-26 11:51:59,363 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:59" (1/1) ... [2023-11-26 11:51:59,366 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:59" (1/1) ... [2023-11-26 11:51:59,368 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:59" (1/1) ... [2023-11-26 11:51:59,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:51:59,374 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:51:59,374 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:51:59,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:51:59,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:59" (1/1) ... [2023-11-26 11:51:59,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:59,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:59,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:59,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:51:59,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:51:59,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:51:59,543 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:51:59,543 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:51:59,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:51:59,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:51:59,667 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:51:59,670 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:52:00,789 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:52:00,846 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:52:00,847 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:52:00,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:52:00 BoogieIcfgContainer [2023-11-26 11:52:00,847 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:52:00,850 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:52:00,850 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:52:00,853 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:52:00,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:51:58" (1/3) ... [2023-11-26 11:52:00,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386e4e71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:52:00, skipping insertion in model container [2023-11-26 11:52:00,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:59" (2/3) ... [2023-11-26 11:52:00,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386e4e71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:52:00, skipping insertion in model container [2023-11-26 11:52:00,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:52:00" (3/3) ... [2023-11-26 11:52:00,856 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-74.i [2023-11-26 11:52:00,872 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:52:00,872 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:52:00,933 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:52:00,944 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;@63c15ef2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:52:00,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:52:00,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-26 11:52:00,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-26 11:52:00,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:00,973 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:00,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:00,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:00,981 INFO L85 PathProgramCache]: Analyzing trace with hash -162583371, now seen corresponding path program 1 times [2023-11-26 11:52:01,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:52:01,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572350327] [2023-11-26 11:52:01,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:01,003 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 [2023-11-26 11:52:01,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:52:01,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:52:01,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:52:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:01,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:52:01,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:01,479 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2023-11-26 11:52:01,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:52:01,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:52:01,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572350327] [2023-11-26 11:52:01,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572350327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:01,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:01,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:52:01,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186367842] [2023-11-26 11:52:01,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:01,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:52:01,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:52:01,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:52:01,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:52:01,522 INFO L87 Difference]: Start difference. First operand has 48 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-26 11:52:01,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:01,951 INFO L93 Difference]: Finished difference Result 93 states and 161 transitions. [2023-11-26 11:52:01,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:52:01,964 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 105 [2023-11-26 11:52:01,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:01,973 INFO L225 Difference]: With dead ends: 93 [2023-11-26 11:52:01,973 INFO L226 Difference]: Without dead ends: 46 [2023-11-26 11:52:01,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:52:01,983 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:01,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 11:52:02,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-26 11:52:02,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-26 11:52:02,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-26 11:52:02,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 68 transitions. [2023-11-26 11:52:02,035 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 68 transitions. Word has length 105 [2023-11-26 11:52:02,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:02,036 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 68 transitions. [2023-11-26 11:52:02,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-26 11:52:02,037 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 68 transitions. [2023-11-26 11:52:02,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-26 11:52:02,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:02,043 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:02,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:52:02,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:52:02,253 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:02,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:02,254 INFO L85 PathProgramCache]: Analyzing trace with hash 529998271, now seen corresponding path program 1 times [2023-11-26 11:52:02,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:52:02,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733346752] [2023-11-26 11:52:02,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:02,256 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 [2023-11-26 11:52:02,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:52:02,258 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:52:02,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:52:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:02,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:52:02,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:03,053 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-26 11:52:03,053 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:52:03,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:52:03,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733346752] [2023-11-26 11:52:03,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733346752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:03,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:03,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:52:03,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026044069] [2023-11-26 11:52:03,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:03,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:52:03,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:52:03,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:52:03,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:52:03,059 INFO L87 Difference]: Start difference. First operand 46 states and 68 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 11:52:04,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:04,036 INFO L93 Difference]: Finished difference Result 137 states and 203 transitions. [2023-11-26 11:52:04,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:52:04,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 105 [2023-11-26 11:52:04,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:04,052 INFO L225 Difference]: With dead ends: 137 [2023-11-26 11:52:04,052 INFO L226 Difference]: Without dead ends: 92 [2023-11-26 11:52:04,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:52:04,056 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 48 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:04,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 251 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:52:04,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-26 11:52:04,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 80. [2023-11-26 11:52:04,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-26 11:52:04,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 118 transitions. [2023-11-26 11:52:04,092 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 118 transitions. Word has length 105 [2023-11-26 11:52:04,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:04,094 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 118 transitions. [2023-11-26 11:52:04,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 11:52:04,094 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 118 transitions. [2023-11-26 11:52:04,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-26 11:52:04,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:04,098 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:04,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:52:04,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:52:04,308 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:04,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:04,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1245009091, now seen corresponding path program 1 times [2023-11-26 11:52:04,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:52:04,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565097731] [2023-11-26 11:52:04,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:04,311 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 [2023-11-26 11:52:04,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:52:04,312 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:52:04,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0fd855-392b-4fa0-857f-9757c9cc1336/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:52:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:04,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 11:52:04,644 INFO L285 TraceCheckSpWp]: Computing forward predicates...