./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8876f6eb9f613cb29715c4f42ee784bd0e24b5eed933337274de9fdb9ce0c47b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:06:37,203 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:06:37,267 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 02:06:37,273 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:06:37,273 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:06:37,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:06:37,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:06:37,301 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:06:37,301 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:06:37,302 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:06:37,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:06:37,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:06:37,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:06:37,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:06:37,305 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:06:37,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:06:37,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:06:37,306 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:06:37,307 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:06:37,307 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:06:37,308 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:06:37,308 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:06:37,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:06:37,309 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:06:37,310 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:06:37,310 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:06:37,310 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:06:37,311 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:06:37,311 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:06:37,312 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:06:37,312 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:06:37,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:06:37,313 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:06:37,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:06:37,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:06:37,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:06:37,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:06:37,314 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:06:37,314 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:06:37,315 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:06:37,315 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:06:37,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:06:37,315 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_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8876f6eb9f613cb29715c4f42ee784bd0e24b5eed933337274de9fdb9ce0c47b [2023-11-29 02:06:37,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:06:37,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:06:37,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:06:37,560 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:06:37,560 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:06:37,562 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i [2023-11-29 02:06:40,283 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:06:40,447 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:06:40,448 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i [2023-11-29 02:06:40,455 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/data/8baefe4b3/407f728ea8804f31840ecf222e0a17eb/FLAG104a8b6a6 [2023-11-29 02:06:40,468 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/data/8baefe4b3/407f728ea8804f31840ecf222e0a17eb [2023-11-29 02:06:40,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:06:40,471 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:06:40,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:06:40,472 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:06:40,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:06:40,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:06:40" (1/1) ... [2023-11-29 02:06:40,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76cfef56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:40, skipping insertion in model container [2023-11-29 02:06:40,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:06:40" (1/1) ... [2023-11-29 02:06:40,504 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:06:40,630 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_0a706edc-9290-4345-b031-143171d60020/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i[915,928] [2023-11-29 02:06:40,667 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:06:40,679 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:06:40,692 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_0a706edc-9290-4345-b031-143171d60020/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i[915,928] [2023-11-29 02:06:40,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:06:40,725 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:06:40,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:40 WrapperNode [2023-11-29 02:06:40,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:06:40,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:06:40,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:06:40,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:06:40,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:40" (1/1) ... [2023-11-29 02:06:40,744 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:40" (1/1) ... [2023-11-29 02:06:40,773 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 138 [2023-11-29 02:06:40,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:06:40,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:06:40,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:06:40,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:06:40,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:40" (1/1) ... [2023-11-29 02:06:40,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:40" (1/1) ... [2023-11-29 02:06:40,788 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:40" (1/1) ... [2023-11-29 02:06:40,802 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 02:06:40,802 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:40" (1/1) ... [2023-11-29 02:06:40,802 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:40" (1/1) ... [2023-11-29 02:06:40,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:40" (1/1) ... [2023-11-29 02:06:40,812 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:40" (1/1) ... [2023-11-29 02:06:40,814 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:40" (1/1) ... [2023-11-29 02:06:40,815 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:40" (1/1) ... [2023-11-29 02:06:40,818 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:06:40,819 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:06:40,820 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:06:40,820 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:06:40,821 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:40" (1/1) ... [2023-11-29 02:06:40,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:06:40,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:06:40,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:06:40,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:06:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:06:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 02:06:40,891 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 02:06:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:06:40,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:06:40,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:06:40,958 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:06:40,960 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:06:41,174 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:06:41,207 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:06:41,207 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:06:41,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:06:41 BoogieIcfgContainer [2023-11-29 02:06:41,208 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:06:41,211 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:06:41,211 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:06:41,214 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:06:41,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:06:40" (1/3) ... [2023-11-29 02:06:41,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6466b277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:06:41, skipping insertion in model container [2023-11-29 02:06:41,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:40" (2/3) ... [2023-11-29 02:06:41,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6466b277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:06:41, skipping insertion in model container [2023-11-29 02:06:41,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:06:41" (3/3) ... [2023-11-29 02:06:41,217 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-92.i [2023-11-29 02:06:41,232 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:06:41,232 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:06:41,271 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:06:41,277 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;@6430e8cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:06:41,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:06:41,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 34 states have internal predecessors, (48), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 02:06:41,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 02:06:41,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:06:41,301 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:06:41,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:06:41,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:06:41,306 INFO L85 PathProgramCache]: Analyzing trace with hash 609576217, now seen corresponding path program 1 times [2023-11-29 02:06:41,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:06:41,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917266403] [2023-11-29 02:06:41,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:41,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:06:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:06:41,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:06:41,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917266403] [2023-11-29 02:06:41,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 02:06:41,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118626311] [2023-11-29 02:06:41,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:41,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:06:41,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:06:41,484 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:06:41,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:06:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:06:41,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 02:06:41,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:06:41,659 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2023-11-29 02:06:41,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:06:41,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118626311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:06:41,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:06:41,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:06:41,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439442395] [2023-11-29 02:06:41,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:06:41,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 02:06:41,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:06:41,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 02:06:41,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:06:41,696 INFO L87 Difference]: Start difference. First operand has 53 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 34 states have internal predecessors, (48), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-29 02:06:41,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:06:41,730 INFO L93 Difference]: Finished difference Result 103 states and 179 transitions. [2023-11-29 02:06:41,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 02:06:41,732 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2023-11-29 02:06:41,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:06:41,740 INFO L225 Difference]: With dead ends: 103 [2023-11-29 02:06:41,740 INFO L226 Difference]: Without dead ends: 51 [2023-11-29 02:06:41,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:06:41,747 INFO L413 NwaCegarLoop]: 74 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, 74 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:06:41,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:06:41,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-29 02:06:41,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-29 02:06:41,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 02:06:41,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 77 transitions. [2023-11-29 02:06:41,791 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 77 transitions. Word has length 107 [2023-11-29 02:06:41,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:06:41,791 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 77 transitions. [2023-11-29 02:06:41,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-29 02:06:41,792 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 77 transitions. [2023-11-29 02:06:41,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 02:06:41,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:06:41,795 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:06:41,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:06:42,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 02:06:42,000 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:06:42,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:06:42,001 INFO L85 PathProgramCache]: Analyzing trace with hash 386758871, now seen corresponding path program 1 times [2023-11-29 02:06:42,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:06:42,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277509870] [2023-11-29 02:06:42,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:42,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:06:42,056 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:06:42,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [266349023] [2023-11-29 02:06:42,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:42,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:06:42,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:06:42,058 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:06:42,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:06:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:06:42,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:06:42,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:06:43,112 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-29 02:06:43,112 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:06:43,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:06:43,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277509870] [2023-11-29 02:06:43,113 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:06:43,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266349023] [2023-11-29 02:06:43,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266349023] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:06:43,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:06:43,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:06:43,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131171596] [2023-11-29 02:06:43,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:06:43,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:06:43,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:06:43,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:06:43,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:06:43,117 INFO L87 Difference]: Start difference. First operand 51 states and 77 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-29 02:06:43,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:06:43,281 INFO L93 Difference]: Finished difference Result 102 states and 154 transitions. [2023-11-29 02:06:43,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:06:43,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 107 [2023-11-29 02:06:43,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:06:43,285 INFO L225 Difference]: With dead ends: 102 [2023-11-29 02:06:43,285 INFO L226 Difference]: Without dead ends: 52 [2023-11-29 02:06:43,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:06:43,287 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 27 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:06:43,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 139 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:06:43,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-29 02:06:43,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2023-11-29 02:06:43,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.3125) internal successors, (42), 32 states have internal predecessors, (42), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 02:06:43,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 76 transitions. [2023-11-29 02:06:43,299 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 76 transitions. Word has length 107 [2023-11-29 02:06:43,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:06:43,301 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 76 transitions. [2023-11-29 02:06:43,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-29 02:06:43,301 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 76 transitions. [2023-11-29 02:06:43,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 02:06:43,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:06:43,304 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:06:43,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 02:06:43,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:06:43,505 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:06:43,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:06:43,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1834113404, now seen corresponding path program 1 times [2023-11-29 02:06:43,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:06:43,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683161387] [2023-11-29 02:06:43,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:43,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:06:43,544 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:06:43,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853120512] [2023-11-29 02:06:43,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:43,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:06:43,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:06:43,546 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:06:43,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:06:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:06:43,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:06:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:06:43,740 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:06:43,740 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 02:06:43,741 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 02:06:43,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 02:06:43,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:06:43,947 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-29 02:06:43,950 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:06:43,999 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 02:06:44,002 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-29 02:06:44,002 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-29 02:06:44,003 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-29 02:06:44,003 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-29 02:06:44,003 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-29 02:06:44,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:06:44 BoogieIcfgContainer [2023-11-29 02:06:44,021 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:06:44,021 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:06:44,021 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:06:44,021 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:06:44,022 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:06:41" (3/4) ... [2023-11-29 02:06:44,024 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 02:06:44,025 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:06:44,026 INFO L158 Benchmark]: Toolchain (without parser) took 3554.62ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 136.0MB in the beginning and 106.6MB in the end (delta: 29.4MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2023-11-29 02:06:44,026 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:06:44,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.06ms. Allocated memory is still 172.0MB. Free memory was 135.6MB in the beginning and 123.5MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 02:06:44,027 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.53ms. Allocated memory is still 172.0MB. Free memory was 123.5MB in the beginning and 121.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:06:44,028 INFO L158 Benchmark]: Boogie Preprocessor took 44.76ms. Allocated memory is still 172.0MB. Free memory was 121.4MB in the beginning and 118.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:06:44,028 INFO L158 Benchmark]: RCFGBuilder took 388.77ms. Allocated memory is still 172.0MB. Free memory was 118.9MB in the beginning and 100.4MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 02:06:44,029 INFO L158 Benchmark]: TraceAbstraction took 2809.75ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 99.6MB in the beginning and 107.7MB in the end (delta: -8.1MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2023-11-29 02:06:44,029 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 207.6MB. Free memory was 107.7MB in the beginning and 106.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:06:44,032 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.06ms. Allocated memory is still 172.0MB. Free memory was 135.6MB in the beginning and 123.5MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.53ms. Allocated memory is still 172.0MB. Free memory was 123.5MB in the beginning and 121.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.76ms. Allocated memory is still 172.0MB. Free memory was 121.4MB in the beginning and 118.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 388.77ms. Allocated memory is still 172.0MB. Free memory was 118.9MB in the beginning and 100.4MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2809.75ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 99.6MB in the beginning and 107.7MB in the end (delta: -8.1MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 207.6MB. Free memory was 107.7MB in the beginning and 106.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short15 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 someBinaryDOUBLEComparisonOperation at line 95, overapproximation of someBinaryFLOATComparisonOperation at line 95. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] signed char var_1_2 = 2; [L24] signed char var_1_3 = 8; [L25] signed char var_1_4 = 0; [L26] signed char var_1_5 = 32; [L27] signed char var_1_6 = 10; [L28] double var_1_7 = 1000000.625; [L29] double var_1_8 = 16.65; [L30] signed char var_1_9 = 25; [L31] unsigned char var_1_10 = 0; [L32] unsigned char var_1_11 = 0; [L33] float var_1_12 = 0.25; [L34] unsigned short int var_1_13 = 54726; [L99] isInitial = 1 [L100] FCALL initially() [L101] COND TRUE 1 [L102] FCALL updateLastVariables() [L103] CALL updateVariables() [L65] var_1_2 = __VERIFIER_nondet_char() [L66] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L66] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L67] CALL assume_abort_if_not(var_1_2 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L67] RET assume_abort_if_not(var_1_2 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L68] var_1_3 = __VERIFIER_nondet_char() [L69] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L69] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L70] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L70] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L71] var_1_4 = __VERIFIER_nondet_char() [L72] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L72] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L73] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L73] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L74] var_1_5 = __VERIFIER_nondet_char() [L75] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L75] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L76] CALL assume_abort_if_not(var_1_5 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L76] RET assume_abort_if_not(var_1_5 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L77] var_1_6 = __VERIFIER_nondet_char() [L78] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L78] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L79] CALL assume_abort_if_not(var_1_6 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L79] RET assume_abort_if_not(var_1_6 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L80] var_1_8 = __VERIFIER_nondet_double() [L81] 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_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L81] 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_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L82] var_1_10 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L83] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L84] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L84] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L85] var_1_11 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L86] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L87] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L87] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L88] var_1_13 = __VERIFIER_nondet_ushort() [L89] CALL assume_abort_if_not(var_1_13 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L89] RET assume_abort_if_not(var_1_13 >= 32767) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L90] CALL assume_abort_if_not(var_1_13 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L90] RET assume_abort_if_not(var_1_13 <= 65535) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L103] RET updateVariables() [L104] CALL step() [L38] var_1_1 = ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))) [L39] signed char stepLocal_0 = var_1_4; VAL [isInitial=1, stepLocal_0=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L40] EXPR var_1_6 & var_1_3 VAL [isInitial=1, stepLocal_0=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L40] COND TRUE ((~ var_1_5) * (var_1_6 & var_1_3)) >= stepLocal_0 [L41] var_1_7 = var_1_8 VAL [isInitial=1, stepLocal_0=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L43] unsigned char stepLocal_1 = var_1_10; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L44] COND FALSE !(stepLocal_1 && var_1_11) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L47] signed long int stepLocal_4 = var_1_13 - var_1_5; [L48] unsigned char stepLocal_3 = var_1_10; [L49] unsigned char stepLocal_2 = var_1_10; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=0, stepLocal_3=0, stepLocal_4=32767, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L50] COND FALSE !(var_1_11 || stepLocal_3) [L61] var_1_12 = var_1_8 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=0, stepLocal_3=0, stepLocal_4=32767, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L95] EXPR var_1_6 & var_1_3 VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L95] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L95-L96] return (((var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : 1)) && ((var_1_10 && var_1_11) ? (var_1_9 == ((signed char) (var_1_3 - var_1_2))) : 1)) && ((var_1_11 || var_1_10) ? ((var_1_10 || (((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3))) < 32)) ? (((var_1_13 - var_1_5) < var_1_2) ? (var_1_12 == ((float) var_1_8)) : (var_1_12 == ((float) var_1_8))) : (var_1_12 == ((float) var_1_8))) : (var_1_12 == ((float) var_1_8))) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 213 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 85 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 128 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 213 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 430 NumberOfCodeBlocks, 430 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 212 ConstructedInterpolants, 0 QuantifiedInterpolants, 1017 SizeOfPredicates, 6 NumberOfNonLiveVariables, 512 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1088/1088 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 02:06:44,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8876f6eb9f613cb29715c4f42ee784bd0e24b5eed933337274de9fdb9ce0c47b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:06:45,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:06:46,022 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 02:06:46,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:06:46,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:06:46,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:06:46,055 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:06:46,056 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:06:46,056 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:06:46,057 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:06:46,057 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:06:46,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:06:46,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:06:46,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:06:46,060 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:06:46,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:06:46,061 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:06:46,061 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:06:46,062 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:06:46,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:06:46,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:06:46,064 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:06:46,064 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:06:46,064 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 02:06:46,065 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 02:06:46,065 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 02:06:46,066 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:06:46,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:06:46,066 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:06:46,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:06:46,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:06:46,068 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:06:46,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:06:46,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:06:46,069 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:06:46,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:06:46,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:06:46,069 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 02:06:46,069 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 02:06:46,070 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:06:46,070 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:06:46,070 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:06:46,070 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:06:46,070 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:06:46,071 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 02:06:46,071 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_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8876f6eb9f613cb29715c4f42ee784bd0e24b5eed933337274de9fdb9ce0c47b [2023-11-29 02:06:46,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:06:46,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:06:46,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:06:46,409 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:06:46,409 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:06:46,411 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i [2023-11-29 02:06:49,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:06:49,384 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:06:49,385 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i [2023-11-29 02:06:49,393 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/data/fbe87f4e7/0481089f6fea4cf2818174b9a1316b69/FLAG234406a20 [2023-11-29 02:06:49,421 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/data/fbe87f4e7/0481089f6fea4cf2818174b9a1316b69 [2023-11-29 02:06:49,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:06:49,426 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:06:49,428 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:06:49,428 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:06:49,433 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:06:49,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:06:49" (1/1) ... [2023-11-29 02:06:49,435 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7914f0b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:49, skipping insertion in model container [2023-11-29 02:06:49,435 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:06:49" (1/1) ... [2023-11-29 02:06:49,457 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:06:49,579 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_0a706edc-9290-4345-b031-143171d60020/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i[915,928] [2023-11-29 02:06:49,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:06:49,631 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:06:49,641 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_0a706edc-9290-4345-b031-143171d60020/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i[915,928] [2023-11-29 02:06:49,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:06:49,676 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:06:49,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:49 WrapperNode [2023-11-29 02:06:49,676 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:06:49,677 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:06:49,677 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:06:49,677 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:06:49,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:49" (1/1) ... [2023-11-29 02:06:49,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:49" (1/1) ... [2023-11-29 02:06:49,719 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 108 [2023-11-29 02:06:49,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:06:49,720 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:06:49,720 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:06:49,720 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:06:49,730 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:49" (1/1) ... [2023-11-29 02:06:49,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:49" (1/1) ... [2023-11-29 02:06:49,735 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:49" (1/1) ... [2023-11-29 02:06:49,747 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 02:06:49,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:49" (1/1) ... [2023-11-29 02:06:49,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:49" (1/1) ... [2023-11-29 02:06:49,756 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:49" (1/1) ... [2023-11-29 02:06:49,759 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:49" (1/1) ... [2023-11-29 02:06:49,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:49" (1/1) ... [2023-11-29 02:06:49,763 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:49" (1/1) ... [2023-11-29 02:06:49,767 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:06:49,768 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:06:49,768 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:06:49,768 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:06:49,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:49" (1/1) ... [2023-11-29 02:06:49,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:06:49,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:06:49,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:06:49,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:06:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:06:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 02:06:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 02:06:49,831 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 02:06:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:06:49,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:06:49,906 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:06:49,908 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:06:50,476 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:06:50,520 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:06:50,520 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:06:50,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:06:50 BoogieIcfgContainer [2023-11-29 02:06:50,520 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:06:50,523 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:06:50,523 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:06:50,526 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:06:50,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:06:49" (1/3) ... [2023-11-29 02:06:50,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af32faa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:06:50, skipping insertion in model container [2023-11-29 02:06:50,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:06:49" (2/3) ... [2023-11-29 02:06:50,528 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af32faa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:06:50, skipping insertion in model container [2023-11-29 02:06:50,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:06:50" (3/3) ... [2023-11-29 02:06:50,529 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-92.i [2023-11-29 02:06:50,548 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:06:50,548 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:06:50,594 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:06:50,600 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;@4d168a1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:06:50,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:06:50,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 02:06:50,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 02:06:50,613 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:06:50,614 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:06:50,614 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:06:50,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:06:50,618 INFO L85 PathProgramCache]: Analyzing trace with hash 12788562, now seen corresponding path program 1 times [2023-11-29 02:06:50,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:06:50,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589700340] [2023-11-29 02:06:50,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:50,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:06:50,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:06:50,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:06:50,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 02:06:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:06:50,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 02:06:50,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:06:50,854 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2023-11-29 02:06:50,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:06:50,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:06:50,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589700340] [2023-11-29 02:06:50,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589700340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:06:50,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:06:50,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:06:50,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199300814] [2023-11-29 02:06:50,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:06:50,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 02:06:50,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:06:50,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 02:06:50,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:06:50,896 INFO L87 Difference]: Start difference. First operand has 46 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-29 02:06:51,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:06:51,077 INFO L93 Difference]: Finished difference Result 89 states and 155 transitions. [2023-11-29 02:06:51,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 02:06:51,085 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 104 [2023-11-29 02:06:51,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:06:51,091 INFO L225 Difference]: With dead ends: 89 [2023-11-29 02:06:51,091 INFO L226 Difference]: Without dead ends: 44 [2023-11-29 02:06:51,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:06:51,098 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:06:51,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:06:51,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-29 02:06:51,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-29 02:06:51,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 02:06:51,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 65 transitions. [2023-11-29 02:06:51,141 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 65 transitions. Word has length 104 [2023-11-29 02:06:51,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:06:51,142 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 65 transitions. [2023-11-29 02:06:51,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-29 02:06:51,142 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 65 transitions. [2023-11-29 02:06:51,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 02:06:51,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:06:51,145 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:06:51,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:06:51,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:06:51,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:06:51,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:06:51,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1236019116, now seen corresponding path program 1 times [2023-11-29 02:06:51,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:06:51,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499920530] [2023-11-29 02:06:51,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:51,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:06:51,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:06:51,350 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:06:51,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 02:06:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:06:51,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:06:51,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:06:51,732 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-11-29 02:06:51,732 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:06:51,876 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-29 02:06:51,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:06:51,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499920530] [2023-11-29 02:06:51,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499920530] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 02:06:51,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:06:51,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-29 02:06:51,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526704071] [2023-11-29 02:06:51,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:06:51,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:06:51,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:06:51,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:06:51,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:06:51,881 INFO L87 Difference]: Start difference. First operand 44 states and 65 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-29 02:06:52,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:06:52,511 INFO L93 Difference]: Finished difference Result 118 states and 173 transitions. [2023-11-29 02:06:52,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:06:52,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 104 [2023-11-29 02:06:52,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:06:52,514 INFO L225 Difference]: With dead ends: 118 [2023-11-29 02:06:52,514 INFO L226 Difference]: Without dead ends: 75 [2023-11-29 02:06:52,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:06:52,516 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 74 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:06:52,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 238 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:06:52,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-29 02:06:52,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2023-11-29 02:06:52,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 42 states have internal predecessors, (50), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 02:06:52,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 106 transitions. [2023-11-29 02:06:52,536 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 106 transitions. Word has length 104 [2023-11-29 02:06:52,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:06:52,537 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 106 transitions. [2023-11-29 02:06:52,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-29 02:06:52,538 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2023-11-29 02:06:52,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 02:06:52,540 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:06:52,540 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:06:52,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 02:06:52,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:06:52,741 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:06:52,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:06:52,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1178760814, now seen corresponding path program 1 times [2023-11-29 02:06:52,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:06:52,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035018480] [2023-11-29 02:06:52,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:52,743 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:06:52,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:06:52,744 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:06:52,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 02:06:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:06:52,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:06:52,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:07:07,434 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 302 proven. 27 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-11-29 02:07:07,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:08:05,608 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-11-29 02:08:05,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:08:05,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035018480] [2023-11-29 02:08:05,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035018480] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:08:05,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:08:05,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 23 [2023-11-29 02:08:05,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863372651] [2023-11-29 02:08:05,610 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:08:05,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 02:08:05,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:08:05,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 02:08:05,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:08:05,612 INFO L87 Difference]: Start difference. First operand 72 states and 106 transitions. Second operand has 23 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 23 states have internal predecessors, (58), 6 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-29 02:08:47,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:47,301 INFO L93 Difference]: Finished difference Result 115 states and 153 transitions. [2023-11-29 02:08:47,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 02:08:47,309 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 23 states have internal predecessors, (58), 6 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 104 [2023-11-29 02:08:47,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:47,311 INFO L225 Difference]: With dead ends: 115 [2023-11-29 02:08:47,312 INFO L226 Difference]: Without dead ends: 113 [2023-11-29 02:08:47,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 41.1s TimeCoverageRelationStatistics Valid=254, Invalid=738, Unknown=0, NotChecked=0, Total=992 [2023-11-29 02:08:47,313 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 185 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:47,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 180 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 32.0s Time] [2023-11-29 02:08:47,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-29 02:08:47,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 84. [2023-11-29 02:08:47,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 53 states have internal predecessors, (63), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 02:08:47,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 117 transitions. [2023-11-29 02:08:47,332 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 117 transitions. Word has length 104 [2023-11-29 02:08:47,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:47,332 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 117 transitions. [2023-11-29 02:08:47,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 23 states have internal predecessors, (58), 6 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-29 02:08:47,333 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 117 transitions. [2023-11-29 02:08:47,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 02:08:47,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:47,335 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:08:47,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 02:08:47,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:08:47,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:47,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:47,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1988107440, now seen corresponding path program 1 times [2023-11-29 02:08:47,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:08:47,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048413364] [2023-11-29 02:08:47,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:47,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:08:47,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:08:47,538 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:08:47,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 02:08:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:47,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 02:08:47,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:09:09,962 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 382 proven. 81 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 02:09:09,962 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:09:56,981 WARN L293 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 79 DAG size of output: 87 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:10:48,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:10:48,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048413364] [2023-11-29 02:10:48,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048413364] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:10:48,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [571635278] [2023-11-29 02:10:48,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:10:48,241 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 02:10:48,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 02:10:48,242 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 02:10:48,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-29 02:10:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:10:48,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-29 02:10:48,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:28,153 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 286 proven. 198 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 02:12:28,153 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:14:54,823 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-11-29 02:14:54,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [571635278] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:14:54,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:14:54,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 39, 9] total 63 [2023-11-29 02:14:54,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107170101] [2023-11-29 02:14:54,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:14:54,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-11-29 02:14:54,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:14:54,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-11-29 02:14:54,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=663, Invalid=3893, Unknown=0, NotChecked=0, Total=4556 [2023-11-29 02:14:54,829 INFO L87 Difference]: Start difference. First operand 84 states and 117 transitions. Second operand has 63 states, 63 states have (on average 1.873015873015873) internal successors, (118), 57 states have internal predecessors, (118), 18 states have call successors, (50), 17 states have call predecessors, (50), 22 states have return successors, (51), 18 states have call predecessors, (51), 18 states have call successors, (51) [2023-11-29 02:17:31,675 WARN L293 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 76 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:17:48,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:17:48,629 INFO L93 Difference]: Finished difference Result 186 states and 205 transitions. [2023-11-29 02:17:48,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-11-29 02:17:48,640 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 1.873015873015873) internal successors, (118), 57 states have internal predecessors, (118), 18 states have call successors, (50), 17 states have call predecessors, (50), 22 states have return successors, (51), 18 states have call predecessors, (51), 18 states have call successors, (51) Word has length 104 [2023-11-29 02:17:48,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:17:48,644 INFO L225 Difference]: With dead ends: 186 [2023-11-29 02:17:48,644 INFO L226 Difference]: Without dead ends: 184 [2023-11-29 02:17:48,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4348 ImplicationChecksByTransitivity, 336.6s TimeCoverageRelationStatistics Valid=2403, Invalid=11639, Unknown=0, NotChecked=0, Total=14042 [2023-11-29 02:17:48,651 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 271 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:17:48,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 497 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 45.8s Time] [2023-11-29 02:17:48,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-29 02:17:48,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 96. [2023-11-29 02:17:48,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 65 states have (on average 1.0923076923076922) internal successors, (71), 65 states have internal predecessors, (71), 17 states have call successors, (17), 13 states have call predecessors, (17), 13 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 02:17:48,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2023-11-29 02:17:48,674 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 104 [2023-11-29 02:17:48,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:17:48,675 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2023-11-29 02:17:48,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 1.873015873015873) internal successors, (118), 57 states have internal predecessors, (118), 18 states have call successors, (50), 17 states have call predecessors, (50), 22 states have return successors, (51), 18 states have call predecessors, (51), 18 states have call successors, (51) [2023-11-29 02:17:48,676 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2023-11-29 02:17:48,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 02:17:48,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:17:48,678 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:17:48,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-11-29 02:17:48,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 02:17:49,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:17:49,079 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:17:49,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:17:49,080 INFO L85 PathProgramCache]: Analyzing trace with hash 323127254, now seen corresponding path program 1 times [2023-11-29 02:17:49,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:17:49,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021796122] [2023-11-29 02:17:49,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:49,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:17:49,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:17:49,082 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:17:49,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 02:17:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:17:49,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:17:49,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:17:49,348 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-11-29 02:17:49,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:17:49,476 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-29 02:17:49,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:17:49,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021796122] [2023-11-29 02:17:49,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2021796122] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 02:17:49,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:17:49,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-29 02:17:49,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961205617] [2023-11-29 02:17:49,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:17:49,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:17:49,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:17:49,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:17:49,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:17:49,479 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-29 02:17:50,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:17:50,489 INFO L93 Difference]: Finished difference Result 260 states and 280 transitions. [2023-11-29 02:17:50,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:17:50,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 105 [2023-11-29 02:17:50,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:17:50,492 INFO L225 Difference]: With dead ends: 260 [2023-11-29 02:17:50,492 INFO L226 Difference]: Without dead ends: 165 [2023-11-29 02:17:50,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:17:50,494 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 70 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:17:50,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 238 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 02:17:50,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-11-29 02:17:50,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 97. [2023-11-29 02:17:50,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 66 states have (on average 1.0909090909090908) internal successors, (72), 66 states have internal predecessors, (72), 17 states have call successors, (17), 13 states have call predecessors, (17), 13 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 02:17:50,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 106 transitions. [2023-11-29 02:17:50,520 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 106 transitions. Word has length 105 [2023-11-29 02:17:50,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:17:50,520 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 106 transitions. [2023-11-29 02:17:50,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-29 02:17:50,520 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 106 transitions. [2023-11-29 02:17:50,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 02:17:50,522 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:17:50,522 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:17:50,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-29 02:17:50,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:17:50,723 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:17:50,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:17:50,723 INFO L85 PathProgramCache]: Analyzing trace with hash 2098134616, now seen corresponding path program 1 times [2023-11-29 02:17:50,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:17:50,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980139368] [2023-11-29 02:17:50,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:50,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:17:50,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:17:50,725 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:17:50,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 02:17:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:17:50,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:17:50,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:18:12,823 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 302 proven. 27 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-11-29 02:18:12,823 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:19:25,110 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-11-29 02:19:25,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:19:25,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980139368] [2023-11-29 02:19:25,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1980139368] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:19:25,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:19:25,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 23 [2023-11-29 02:19:25,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500100213] [2023-11-29 02:19:25,111 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:19:25,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 02:19:25,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:19:25,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 02:19:25,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:19:25,114 INFO L87 Difference]: Start difference. First operand 97 states and 106 transitions. Second operand has 23 states, 23 states have (on average 2.608695652173913) internal successors, (60), 23 states have internal predecessors, (60), 6 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-29 02:19:56,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:19:56,008 INFO L93 Difference]: Finished difference Result 125 states and 138 transitions. [2023-11-29 02:19:56,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 02:19:56,017 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.608695652173913) internal successors, (60), 23 states have internal predecessors, (60), 6 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 105 [2023-11-29 02:19:56,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:19:56,018 INFO L225 Difference]: With dead ends: 125 [2023-11-29 02:19:56,018 INFO L226 Difference]: Without dead ends: 123 [2023-11-29 02:19:56,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 49.8s TimeCoverageRelationStatistics Valid=254, Invalid=738, Unknown=0, NotChecked=0, Total=992 [2023-11-29 02:19:56,019 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 113 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:19:56,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 171 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 20.9s Time] [2023-11-29 02:19:56,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-29 02:19:56,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 102. [2023-11-29 02:19:56,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 71 states have (on average 1.1267605633802817) internal successors, (80), 71 states have internal predecessors, (80), 17 states have call successors, (17), 13 states have call predecessors, (17), 13 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 02:19:56,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 114 transitions. [2023-11-29 02:19:56,036 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 114 transitions. Word has length 105 [2023-11-29 02:19:56,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:19:56,037 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 114 transitions. [2023-11-29 02:19:56,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.608695652173913) internal successors, (60), 23 states have internal predecessors, (60), 6 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-29 02:19:56,037 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2023-11-29 02:19:56,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 02:19:56,038 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:19:56,039 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:19:56,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 02:19:56,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:19:56,239 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:19:56,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:19:56,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1516774310, now seen corresponding path program 1 times [2023-11-29 02:19:56,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:19:56,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878318084] [2023-11-29 02:19:56,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:19:56,240 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:19:56,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:19:56,241 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:19:56,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a706edc-9290-4345-b031-143171d60020/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 02:19:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:19:56,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 02:19:56,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:20:22,305 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 382 proven. 81 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 02:20:22,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:21:06,543 WARN L293 SmtUtils]: Spent 6.78s on a formula simplification. DAG size of input: 79 DAG size of output: 87 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)