./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.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_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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 3cf3add05c45b0b04bd0d1457ef1e7330de70f3c21c667f6683e915324786bcc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:02:41,029 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:02:41,146 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 12:02:41,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:02:41,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:02:41,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:02:41,196 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:02:41,198 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:02:41,199 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:02:41,204 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:02:41,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:02:41,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:02:41,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:02:41,208 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:02:41,208 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:02:41,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:02:41,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:02:41,210 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:02:41,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:02:41,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:02:41,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:02:41,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:02:41,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:02:41,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:02:41,213 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:02:41,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:02:41,214 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:02:41,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:02:41,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:02:41,216 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:02:41,217 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:02:41,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:41,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:02:41,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:02:41,218 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:02:41,219 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:02:41,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:02:41,220 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:02:41,220 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:02:41,220 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:02:41,220 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:02:41,221 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:02:41,221 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_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf3add05c45b0b04bd0d1457ef1e7330de70f3c21c667f6683e915324786bcc [2023-11-26 12:02:41,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:02:41,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:02:41,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:02:41,609 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:02:41,610 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:02:41,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i [2023-11-26 12:02:44,647 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:02:44,938 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:02:44,940 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i [2023-11-26 12:02:44,952 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/data/1a60a05d5/14c29de25204407a8d373385715b8cd0/FLAG3911d57c1 [2023-11-26 12:02:44,975 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/data/1a60a05d5/14c29de25204407a8d373385715b8cd0 [2023-11-26 12:02:44,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:02:44,984 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:02:44,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:44,988 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:02:44,994 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:02:44,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:44" (1/1) ... [2023-11-26 12:02:44,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bea6084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:44, skipping insertion in model container [2023-11-26 12:02:44,996 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:44" (1/1) ... [2023-11-26 12:02:45,025 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:02:45,240 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_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i[915,928] [2023-11-26 12:02:45,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:45,297 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:02:45,311 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_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i[915,928] [2023-11-26 12:02:45,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:45,343 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:02:45,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:45 WrapperNode [2023-11-26 12:02:45,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:45,346 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:45,346 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:02:45,346 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:02:45,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:45" (1/1) ... [2023-11-26 12:02:45,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:45" (1/1) ... [2023-11-26 12:02:45,423 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 108 [2023-11-26 12:02:45,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:45,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:02:45,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:02:45,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:02:45,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:45" (1/1) ... [2023-11-26 12:02:45,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:45" (1/1) ... [2023-11-26 12:02:45,443 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:45" (1/1) ... [2023-11-26 12:02:45,458 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 12:02:45,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:45" (1/1) ... [2023-11-26 12:02:45,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:45" (1/1) ... [2023-11-26 12:02:45,466 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:45" (1/1) ... [2023-11-26 12:02:45,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:45" (1/1) ... [2023-11-26 12:02:45,471 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:45" (1/1) ... [2023-11-26 12:02:45,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:45" (1/1) ... [2023-11-26 12:02:45,476 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:02:45,477 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:02:45,478 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:02:45,478 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:02:45,479 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:45" (1/1) ... [2023-11-26 12:02:45,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:45,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:45,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:45,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:02:45,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:02:45,553 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 12:02:45,553 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 12:02:45,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:02:45,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:02:45,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:02:45,690 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:02:45,693 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:02:45,991 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:02:46,029 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:02:46,030 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:02:46,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:46 BoogieIcfgContainer [2023-11-26 12:02:46,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:02:46,033 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:02:46,033 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:02:46,037 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:02:46,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:44" (1/3) ... [2023-11-26 12:02:46,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282360af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:46, skipping insertion in model container [2023-11-26 12:02:46,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:45" (2/3) ... [2023-11-26 12:02:46,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282360af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:46, skipping insertion in model container [2023-11-26 12:02:46,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:46" (3/3) ... [2023-11-26 12:02:46,040 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-84.i [2023-11-26 12:02:46,058 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:02:46,058 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:02:46,107 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:02:46,114 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;@66ba6bd2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:02:46,115 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:02:46,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-26 12:02:46,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-26 12:02:46,139 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:46,141 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:02:46,142 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:46,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:46,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1254039382, now seen corresponding path program 1 times [2023-11-26 12:02:46,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:46,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168293612] [2023-11-26 12:02:46,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:46,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:46,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 12:02:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:46,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 12:02:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:46,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 12:02:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:46,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 12:02:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:46,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 12:02:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:46,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 12:02:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:46,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 12:02:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:46,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 12:02:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:46,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-26 12:02:46,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:46,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-26 12:02:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:46,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-26 12:02:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:46,581 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-26 12:02:46,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:46,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168293612] [2023-11-26 12:02:46,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168293612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:46,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:46,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:46,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327117762] [2023-11-26 12:02:46,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:46,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:02:46,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:46,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:02:46,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:02:46,633 INFO L87 Difference]: Start difference. First operand has 41 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-26 12:02:46,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:46,672 INFO L93 Difference]: Finished difference Result 79 states and 133 transitions. [2023-11-26 12:02:46,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:02:46,675 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 69 [2023-11-26 12:02:46,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:46,683 INFO L225 Difference]: With dead ends: 79 [2023-11-26 12:02:46,684 INFO L226 Difference]: Without dead ends: 39 [2023-11-26 12:02:46,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 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 12:02:46,692 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:46,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:02:46,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-26 12:02:46,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-26 12:02:46,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-26 12:02:46,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2023-11-26 12:02:46,741 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 69 [2023-11-26 12:02:46,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:46,742 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2023-11-26 12:02:46,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-26 12:02:46,743 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2023-11-26 12:02:46,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-26 12:02:46,747 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:46,747 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:02:46,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:02:46,748 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:46,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:46,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1696913832, now seen corresponding path program 1 times [2023-11-26 12:02:46,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:46,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008034521] [2023-11-26 12:02:46,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:46,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:46,824 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:02:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:46,944 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:02:46,945 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:02:46,947 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:02:46,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:02:46,953 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 12:02:46,958 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:02:47,003 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite12 could not be translated [2023-11-26 12:02:47,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:02:47 BoogieIcfgContainer [2023-11-26 12:02:47,018 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:02:47,019 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:02:47,020 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:02:47,020 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:02:47,021 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:46" (3/4) ... [2023-11-26 12:02:47,023 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:02:47,024 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:02:47,025 INFO L158 Benchmark]: Toolchain (without parser) took 2041.27ms. Allocated memory is still 157.3MB. Free memory was 125.4MB in the beginning and 75.2MB in the end (delta: 50.2MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2023-11-26 12:02:47,026 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:02:47,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.98ms. Allocated memory is still 157.3MB. Free memory was 125.4MB in the beginning and 114.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 12:02:47,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.34ms. Allocated memory is still 157.3MB. Free memory was 114.2MB in the beginning and 111.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:02:47,028 INFO L158 Benchmark]: Boogie Preprocessor took 51.88ms. Allocated memory is still 157.3MB. Free memory was 111.5MB in the beginning and 109.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:02:47,029 INFO L158 Benchmark]: RCFGBuilder took 553.38ms. Allocated memory is still 157.3MB. Free memory was 109.4MB in the beginning and 116.4MB in the end (delta: -7.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 12:02:47,030 INFO L158 Benchmark]: TraceAbstraction took 985.91ms. Allocated memory is still 157.3MB. Free memory was 115.9MB in the beginning and 76.0MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-26 12:02:47,030 INFO L158 Benchmark]: Witness Printer took 5.33ms. Allocated memory is still 157.3MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:02:47,034 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.98ms. Allocated memory is still 157.3MB. Free memory was 125.4MB in the beginning and 114.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.34ms. Allocated memory is still 157.3MB. Free memory was 114.2MB in the beginning and 111.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.88ms. Allocated memory is still 157.3MB. Free memory was 111.5MB in the beginning and 109.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 553.38ms. Allocated memory is still 157.3MB. Free memory was 109.4MB in the beginning and 116.4MB in the end (delta: -7.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 985.91ms. Allocated memory is still 157.3MB. Free memory was 115.9MB in the beginning and 76.0MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 5.33ms. Allocated memory is still 157.3MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite12 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 63. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] unsigned short int var_1_2 = 128; [L24] unsigned short int var_1_3 = 0; [L25] unsigned char var_1_4 = 0; [L26] unsigned char var_1_5 = 1; [L27] unsigned char var_1_6 = 0; [L28] float var_1_7 = 49.5; [L29] float var_1_8 = 16.25; [L67] isInitial = 1 [L68] FCALL initially() [L69] COND TRUE 1 [L70] FCALL updateLastVariables() [L71] CALL updateVariables() [L42] var_1_2 = __VERIFIER_nondet_ushort() [L43] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L43] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=1, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L44] CALL assume_abort_if_not(var_1_2 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L44] RET assume_abort_if_not(var_1_2 <= 65535) VAL [isInitial=1, var_1_1=1, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L45] var_1_3 = __VERIFIER_nondet_ushort() [L46] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L46] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L47] CALL assume_abort_if_not(var_1_3 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L47] RET assume_abort_if_not(var_1_3 <= 65535) VAL [isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L48] var_1_4 = __VERIFIER_nondet_uchar() [L49] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L49] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_1=1, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L50] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L50] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L51] var_1_5 = __VERIFIER_nondet_uchar() [L52] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L52] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_1=1, var_1_4=0, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L53] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L53] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, var_1_1=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L54] var_1_6 = __VERIFIER_nondet_uchar() [L55] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=0, var_1_7=99/2, var_1_8=65/4] [L55] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_1=1, var_1_4=0, var_1_5=0, var_1_7=99/2, var_1_8=65/4] [L56] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L56] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, var_1_1=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L57] var_1_8 = __VERIFIER_nondet_float() [L58] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=99/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=99/2] [L58] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=99/2] [L71] RET updateVariables() [L72] CALL step() [L33] unsigned short int stepLocal_0 = var_1_3; VAL [isInitial=1, stepLocal_0=4, var_1_1=1, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=99/2] [L34] COND FALSE !(var_1_2 == stepLocal_0) [L37] var_1_1 = (var_1_4 && (var_1_5 && var_1_6)) VAL [isInitial=1, stepLocal_0=4, var_1_1=0, var_1_2=1, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=99/2] [L39] var_1_7 = var_1_8 [L72] RET step() [L73] CALL, EXPR property() [L63] EXPR (var_1_2 == var_1_3) ? (var_1_1 == ((unsigned char) ((var_1_3 > (50 ^ var_1_2)) && var_1_4))) : (var_1_1 == ((unsigned char) (var_1_4 && (var_1_5 && var_1_6)))) VAL [isInitial=1, var_1_1=0, var_1_2=1, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=133, var_1_8=133] [L63-L64] return ((var_1_2 == var_1_3) ? (var_1_1 == ((unsigned char) ((var_1_3 > (50 ^ var_1_2)) && var_1_4))) : (var_1_1 == ((unsigned char) (var_1_4 && (var_1_5 && var_1_6))))) && (var_1_7 == ((float) var_1_8)) ; [L73] RET, EXPR property() [L73] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=0, var_1_2=1, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=133, var_1_8=133] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=0, var_1_2=1, var_1_3=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=133, var_1_8=133] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 51 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 220/220 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 12:02:47,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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 3cf3add05c45b0b04bd0d1457ef1e7330de70f3c21c667f6683e915324786bcc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:02:49,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:02:50,016 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 12:02:50,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:02:50,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:02:50,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:02:50,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:02:50,080 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:02:50,081 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:02:50,086 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:02:50,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:02:50,087 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:02:50,088 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:02:50,090 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:02:50,090 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:02:50,091 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:02:50,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:02:50,092 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:02:50,092 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:02:50,094 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:02:50,094 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:02:50,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:02:50,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:02:50,096 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:02:50,096 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:02:50,096 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:02:50,097 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:02:50,097 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:02:50,098 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:02:50,098 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:02:50,100 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:02:50,100 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:02:50,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:02:50,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:50,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:02:50,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:02:50,103 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:02:50,103 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:02:50,103 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:02:50,104 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:02:50,104 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:02:50,104 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:02:50,105 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:02:50,105 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:02:50,105 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:02:50,106 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_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf3add05c45b0b04bd0d1457ef1e7330de70f3c21c667f6683e915324786bcc [2023-11-26 12:02:50,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:02:50,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:02:50,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:02:50,518 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:02:50,519 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:02:50,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i [2023-11-26 12:02:53,702 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:02:54,010 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:02:54,012 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i [2023-11-26 12:02:54,020 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/data/41457b584/7ec2ce019201487d871216c50ac8eb5c/FLAG4b6e7db58 [2023-11-26 12:02:54,034 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/data/41457b584/7ec2ce019201487d871216c50ac8eb5c [2023-11-26 12:02:54,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:02:54,038 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:02:54,039 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:54,039 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:02:54,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:02:54,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:54" (1/1) ... [2023-11-26 12:02:54,047 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19fefc11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:54, skipping insertion in model container [2023-11-26 12:02:54,047 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:54" (1/1) ... [2023-11-26 12:02:54,075 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:02:54,237 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_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i[915,928] [2023-11-26 12:02:54,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:54,282 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:02:54,296 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_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i[915,928] [2023-11-26 12:02:54,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:54,328 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:02:54,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:54 WrapperNode [2023-11-26 12:02:54,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:54,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:54,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:02:54,331 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:02:54,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:54" (1/1) ... [2023-11-26 12:02:54,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:54" (1/1) ... [2023-11-26 12:02:54,373 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 76 [2023-11-26 12:02:54,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:54,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:02:54,375 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:02:54,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:02:54,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:54" (1/1) ... [2023-11-26 12:02:54,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:54" (1/1) ... [2023-11-26 12:02:54,391 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:54" (1/1) ... [2023-11-26 12:02:54,413 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 12:02:54,413 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:54" (1/1) ... [2023-11-26 12:02:54,413 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:54" (1/1) ... [2023-11-26 12:02:54,434 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:54" (1/1) ... [2023-11-26 12:02:54,438 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:54" (1/1) ... [2023-11-26 12:02:54,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:54" (1/1) ... [2023-11-26 12:02:54,442 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:54" (1/1) ... [2023-11-26 12:02:54,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:02:54,446 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:02:54,447 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:02:54,447 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:02:54,448 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:54" (1/1) ... [2023-11-26 12:02:54,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:54,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:54,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:54,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:02:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:02:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 12:02:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 12:02:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 12:02:54,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:02:54,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:02:54,643 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:02:54,646 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:02:54,900 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:02:55,001 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:02:55,001 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:02:55,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:55 BoogieIcfgContainer [2023-11-26 12:02:55,002 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:02:55,005 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:02:55,005 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:02:55,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:02:55,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:54" (1/3) ... [2023-11-26 12:02:55,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ac9e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:55, skipping insertion in model container [2023-11-26 12:02:55,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:54" (2/3) ... [2023-11-26 12:02:55,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ac9e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:55, skipping insertion in model container [2023-11-26 12:02:55,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:55" (3/3) ... [2023-11-26 12:02:55,017 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-84.i [2023-11-26 12:02:55,040 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:02:55,040 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:02:55,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:02:55,118 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;@71db64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:02:55,119 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:02:55,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-26 12:02:55,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-26 12:02:55,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:55,139 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:02:55,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:55,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:55,147 INFO L85 PathProgramCache]: Analyzing trace with hash -162784122, now seen corresponding path program 1 times [2023-11-26 12:02:55,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:02:55,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268388616] [2023-11-26 12:02:55,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:55,162 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 12:02:55,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:02:55,166 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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 12:02:55,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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 12:02:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:55,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 12:02:55,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:55,342 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-11-26 12:02:55,342 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:02:55,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:02:55,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268388616] [2023-11-26 12:02:55,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268388616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:55,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:55,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:55,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619951409] [2023-11-26 12:02:55,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:55,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:02:55,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:02:55,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:02:55,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:02:55,393 INFO L87 Difference]: Start difference. First operand has 31 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-26 12:02:55,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:55,444 INFO L93 Difference]: Finished difference Result 59 states and 99 transitions. [2023-11-26 12:02:55,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:02:55,447 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 67 [2023-11-26 12:02:55,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:55,456 INFO L225 Difference]: With dead ends: 59 [2023-11-26 12:02:55,456 INFO L226 Difference]: Without dead ends: 29 [2023-11-26 12:02:55,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 66 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 12:02:55,467 INFO L413 NwaCegarLoop]: 37 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, 37 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 12:02:55,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:02:55,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-26 12:02:55,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-26 12:02:55,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-26 12:02:55,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2023-11-26 12:02:55,545 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 67 [2023-11-26 12:02:55,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:55,546 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2023-11-26 12:02:55,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-26 12:02:55,547 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2023-11-26 12:02:55,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-26 12:02:55,553 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:55,555 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:02:55,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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 12:02:55,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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 12:02:55,759 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:55,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:55,761 INFO L85 PathProgramCache]: Analyzing trace with hash 2016820484, now seen corresponding path program 1 times [2023-11-26 12:02:55,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:02:55,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089831367] [2023-11-26 12:02:55,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:55,763 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 12:02:55,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:02:55,765 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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 12:02:55,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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 12:02:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:55,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-26 12:02:55,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:58,004 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 135 proven. 12 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-26 12:02:58,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:02:59,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:02:59,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1089831367] [2023-11-26 12:02:59,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1089831367] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:02:59,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [338960364] [2023-11-26 12:02:59,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:59,125 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-26 12:02:59,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/cvc4 [2023-11-26 12:02:59,159 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-26 12:02:59,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-26 12:02:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:59,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 12:02:59,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:01,343 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-26 12:03:01,343 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:03:01,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [338960364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:01,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:03:01,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2023-11-26 12:03:01,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204683090] [2023-11-26 12:03:01,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:01,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:03:01,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:03:01,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:03:01,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2023-11-26 12:03:01,351 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-26 12:03:03,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:03,522 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2023-11-26 12:03:03,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 12:03:03,524 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 67 [2023-11-26 12:03:03,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:03,526 INFO L225 Difference]: With dead ends: 41 [2023-11-26 12:03:03,526 INFO L226 Difference]: Without dead ends: 39 [2023-11-26 12:03:03,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2023-11-26 12:03:03,529 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 37 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:03,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 74 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-26 12:03:03,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-26 12:03:03,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2023-11-26 12:03:03,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-26 12:03:03,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2023-11-26 12:03:03,544 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 67 [2023-11-26 12:03:03,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:03,545 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2023-11-26 12:03:03,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-26 12:03:03,546 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2023-11-26 12:03:03,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-26 12:03:03,549 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:03,549 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:03,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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 12:03:03,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:03,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt [2023-11-26 12:03:03,954 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:03,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:03,955 INFO L85 PathProgramCache]: Analyzing trace with hash 2016880066, now seen corresponding path program 1 times [2023-11-26 12:03:03,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:03:03,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566547409] [2023-11-26 12:03:03,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:03,957 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 12:03:03,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:03:03,958 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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 12:03:03,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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 (5)] Waiting until timeout for monitored process [2023-11-26 12:03:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:04,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-26 12:03:04,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:05,246 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 135 proven. 12 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-26 12:03:05,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:03:06,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:03:06,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566547409] [2023-11-26 12:03:06,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566547409] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:03:06,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [329089923] [2023-11-26 12:03:06,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:06,109 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-26 12:03:06,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/cvc4 [2023-11-26 12:03:06,112 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-26 12:03:06,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-26 12:03:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:06,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-26 12:03:06,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 135 proven. 12 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-26 12:03:07,366 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:03:08,522 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-26 12:03:08,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [329089923] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-26 12:03:08,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:03:08,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 11] total 24 [2023-11-26 12:03:08,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644320310] [2023-11-26 12:03:08,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:08,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:03:08,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:03:08,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:03:08,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=553, Unknown=0, NotChecked=0, Total=702 [2023-11-26 12:03:08,526 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-26 12:03:09,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:09,299 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2023-11-26 12:03:09,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 12:03:09,300 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 67 [2023-11-26 12:03:09,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:09,301 INFO L225 Difference]: With dead ends: 38 [2023-11-26 12:03:09,301 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 12:03:09,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=186, Invalid=744, Unknown=0, NotChecked=0, Total=930 [2023-11-26 12:03:09,304 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 47 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:09,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 71 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 12:03:09,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 12:03:09,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 12:03:09,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:09,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 12:03:09,307 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2023-11-26 12:03:09,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:09,307 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:03:09,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-26 12:03:09,308 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 12:03:09,308 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 12:03:09,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:03:09,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:09,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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 (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:09,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/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 12:03:09,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 12:03:10,817 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2023-11-26 12:03:10,817 INFO L895 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-26 12:03:10,818 INFO L895 garLoopResultBuilder]: At program point L52-1(line 52) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-26 12:03:10,818 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-26 12:03:10,818 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-26 12:03:10,818 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-26 12:03:10,819 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-11-26 12:03:10,819 INFO L895 garLoopResultBuilder]: At program point L69-2(lines 69 75) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-26 12:03:10,819 INFO L899 garLoopResultBuilder]: For program point L69-3(lines 69 75) no Hoare annotation was computed. [2023-11-26 12:03:10,819 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-26 12:03:10,820 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-11-26 12:03:10,820 INFO L895 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-26 12:03:10,820 INFO L895 garLoopResultBuilder]: At program point L49-1(line 49) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-26 12:03:10,821 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 12:03:10,821 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-11-26 12:03:10,821 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 41 59) no Hoare annotation was computed. [2023-11-26 12:03:10,821 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-11-26 12:03:10,821 INFO L895 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-26 12:03:10,822 INFO L895 garLoopResultBuilder]: At program point L46-1(line 46) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-26 12:03:10,822 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 12:03:10,822 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 38) no Hoare annotation was computed. [2023-11-26 12:03:10,822 INFO L899 garLoopResultBuilder]: For program point L34-2(lines 34 38) no Hoare annotation was computed. [2023-11-26 12:03:10,823 INFO L895 garLoopResultBuilder]: At program point L55(line 55) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-26 12:03:10,823 INFO L895 garLoopResultBuilder]: At program point L55-1(line 55) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-26 12:03:10,823 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2023-11-26 12:03:10,824 INFO L895 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-26 12:03:10,824 INFO L895 garLoopResultBuilder]: At program point L43-1(line 43) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.geq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (fp.leq ~var_1_8~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (fp.geq ~var_1_8~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))))) [2023-11-26 12:03:10,824 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-26 12:03:10,824 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-26 12:03:10,824 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-26 12:03:10,825 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-26 12:03:10,828 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 12:03:10,831 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:03:10,842 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.geq~32(~var_1_8~0, ~fp.neg~32(~to_fp~32(currentRoundingMode, 9.2233720368547656E18))) && ~fp.leq~32(~var_1_8~0, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1/100000000000000000000)))) could not be translated [2023-11-26 12:03:10,843 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.leq~32(~var_1_8~0, ~to_fp~32(currentRoundingMode, 9.2233720368547656E18)) && ~fp.geq~32(~var_1_8~0, ~to_fp~32(currentRoundingMode, 1/100000000000000000000))) could not be translated [2023-11-26 12:03:10,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:03:10 BoogieIcfgContainer [2023-11-26 12:03:10,844 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:03:10,845 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:03:10,845 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:03:10,845 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:03:10,845 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:55" (3/4) ... [2023-11-26 12:03:10,847 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 12:03:10,851 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-26 12:03:10,857 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-26 12:03:10,857 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-26 12:03:10,858 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 12:03:10,858 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 12:03:10,978 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:03:10,979 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 12:03:10,980 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:03:10,981 INFO L158 Benchmark]: Toolchain (without parser) took 16943.09ms. Allocated memory was 102.8MB in the beginning and 264.2MB in the end (delta: 161.5MB). Free memory was 78.6MB in the beginning and 177.9MB in the end (delta: -99.3MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2023-11-26 12:03:10,981 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 75.5MB. Free memory was 51.1MB in the beginning and 51.0MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:03:10,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.42ms. Allocated memory is still 102.8MB. Free memory was 78.6MB in the beginning and 66.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 12:03:10,982 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.54ms. Allocated memory is still 102.8MB. Free memory was 66.7MB in the beginning and 64.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:03:10,983 INFO L158 Benchmark]: Boogie Preprocessor took 71.24ms. Allocated memory is still 102.8MB. Free memory was 64.9MB in the beginning and 62.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:03:10,983 INFO L158 Benchmark]: RCFGBuilder took 556.15ms. Allocated memory is still 102.8MB. Free memory was 62.5MB in the beginning and 73.7MB in the end (delta: -11.2MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2023-11-26 12:03:10,984 INFO L158 Benchmark]: TraceAbstraction took 15839.27ms. Allocated memory was 102.8MB in the beginning and 264.2MB in the end (delta: 161.5MB). Free memory was 73.2MB in the beginning and 183.1MB in the end (delta: -109.9MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2023-11-26 12:03:10,984 INFO L158 Benchmark]: Witness Printer took 135.38ms. Allocated memory is still 264.2MB. Free memory was 183.1MB in the beginning and 177.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:03:10,988 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 75.5MB. Free memory was 51.1MB in the beginning and 51.0MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.42ms. Allocated memory is still 102.8MB. Free memory was 78.6MB in the beginning and 66.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.54ms. Allocated memory is still 102.8MB. Free memory was 66.7MB in the beginning and 64.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.24ms. Allocated memory is still 102.8MB. Free memory was 64.9MB in the beginning and 62.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 556.15ms. Allocated memory is still 102.8MB. Free memory was 62.5MB in the beginning and 73.7MB in the end (delta: -11.2MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * TraceAbstraction took 15839.27ms. Allocated memory was 102.8MB in the beginning and 264.2MB in the end (delta: 161.5MB). Free memory was 73.2MB in the beginning and 183.1MB in the end (delta: -109.9MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. * Witness Printer took 135.38ms. Allocated memory is still 264.2MB. Free memory was 183.1MB in the beginning and 177.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.geq~32(~var_1_8~0, ~fp.neg~32(~to_fp~32(currentRoundingMode, 9.2233720368547656E18))) && ~fp.leq~32(~var_1_8~0, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1/100000000000000000000)))) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.leq~32(~var_1_8~0, ~to_fp~32(currentRoundingMode, 9.2233720368547656E18)) && ~fp.geq~32(~var_1_8~0, ~to_fp~32(currentRoundingMode, 1/100000000000000000000))) could not be translated * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.7s, OverallIterations: 3, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 182 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 93 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 255 IncrementalHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 89 mSDtfsCounter, 255 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 419 GetRequests, 365 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 487 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=2, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 34 PreInvPairs, 48 NumberOfFragments, 299 HoareAnnotationTreeSize, 34 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 646 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 9.4s InterpolantComputationTime, 335 NumberOfCodeBlocks, 335 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 396 ConstructedInterpolants, 7 QuantifiedInterpolants, 1659 SizeOfPredicates, 64 NumberOfNonLiveVariables, 575 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 1284/1320 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-26 12:03:11,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53b25dd-8e8e-4179-adb9-a09eeaa7486c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE