./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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 31c38fc0029b15eea235546e14c5b61b4e70b436ee39f6c640a47d6a6b4e9a18 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:55:59,075 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:55:59,138 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 03:55:59,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:55:59,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:55:59,168 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:55:59,168 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:55:59,169 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:55:59,170 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:55:59,170 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:55:59,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:55:59,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:55:59,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:55:59,172 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:55:59,173 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:55:59,173 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:55:59,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:55:59,174 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:55:59,175 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:55:59,175 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:55:59,176 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:55:59,176 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:55:59,177 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:55:59,177 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:55:59,177 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:55:59,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:55:59,178 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:55:59,178 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:55:59,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:55:59,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:55:59,180 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:55:59,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:55:59,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:55:59,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:55:59,181 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:55:59,181 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:55:59,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:55:59,181 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:55:59,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:55:59,182 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:55:59,182 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:55:59,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:55:59,182 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_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31c38fc0029b15eea235546e14c5b61b4e70b436ee39f6c640a47d6a6b4e9a18 [2023-11-29 03:55:59,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:55:59,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:55:59,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:55:59,430 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:55:59,430 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:55:59,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i [2023-11-29 03:56:02,162 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:56:02,348 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:56:02,348 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i [2023-11-29 03:56:02,356 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/data/457a30397/7d0068030e694b79974dfa137246b752/FLAG11a5e3782 [2023-11-29 03:56:02,371 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/data/457a30397/7d0068030e694b79974dfa137246b752 [2023-11-29 03:56:02,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:56:02,375 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:56:02,376 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:56:02,376 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:56:02,381 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:56:02,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:56:02" (1/1) ... [2023-11-29 03:56:02,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e2080f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:02, skipping insertion in model container [2023-11-29 03:56:02,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:56:02" (1/1) ... [2023-11-29 03:56:02,408 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:56:02,554 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_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i[915,928] [2023-11-29 03:56:02,582 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:56:02,594 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:56:02,606 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_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i[915,928] [2023-11-29 03:56:02,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:56:02,636 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:56:02,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:02 WrapperNode [2023-11-29 03:56:02,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:56:02,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:56:02,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:56:02,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:56:02,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:02" (1/1) ... [2023-11-29 03:56:02,653 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:02" (1/1) ... [2023-11-29 03:56:02,677 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2023-11-29 03:56:02,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:56:02,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:56:02,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:56:02,679 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:56:02,691 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:02" (1/1) ... [2023-11-29 03:56:02,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:02" (1/1) ... [2023-11-29 03:56:02,693 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:02" (1/1) ... [2023-11-29 03:56:02,706 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 03:56:02,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:02" (1/1) ... [2023-11-29 03:56:02,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:02" (1/1) ... [2023-11-29 03:56:02,711 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:02" (1/1) ... [2023-11-29 03:56:02,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:02" (1/1) ... [2023-11-29 03:56:02,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:02" (1/1) ... [2023-11-29 03:56:02,717 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:02" (1/1) ... [2023-11-29 03:56:02,719 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:56:02,720 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:56:02,720 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:56:02,720 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:56:02,721 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:02" (1/1) ... [2023-11-29 03:56:02,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:56:02,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:02,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:56:02,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:56:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:56:02,789 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:56:02,789 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:56:02,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:56:02,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:56:02,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:56:02,866 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:56:02,869 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:56:03,027 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:56:03,065 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:56:03,065 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:56:03,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:56:03 BoogieIcfgContainer [2023-11-29 03:56:03,066 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:56:03,069 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:56:03,069 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:56:03,072 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:56:03,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:56:02" (1/3) ... [2023-11-29 03:56:03,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c73f9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:56:03, skipping insertion in model container [2023-11-29 03:56:03,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:02" (2/3) ... [2023-11-29 03:56:03,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c73f9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:56:03, skipping insertion in model container [2023-11-29 03:56:03,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:56:03" (3/3) ... [2023-11-29 03:56:03,075 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-50.i [2023-11-29 03:56:03,094 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:56:03,094 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 03:56:03,140 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:56:03,145 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;@e2d29d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:56:03,146 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 03:56:03,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:56:03,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 03:56:03,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:03,160 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:03,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:56:03,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:03,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1445116391, now seen corresponding path program 1 times [2023-11-29 03:56:03,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:56:03,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385586136] [2023-11-29 03:56:03,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:03,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:56:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:03,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:56:03,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385586136] [2023-11-29 03:56:03,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 03:56:03,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989403821] [2023-11-29 03:56:03,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:03,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:03,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:03,328 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:56:03,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:56:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:03,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 03:56:03,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:03,534 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-29 03:56:03,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:56:03,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989403821] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:56:03,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:56:03,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:56:03,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272180618] [2023-11-29 03:56:03,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:56:03,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:56:03,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:56:03,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:56:03,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:56:03,575 INFO L87 Difference]: Start difference. First operand has 34 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 03:56:03,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:03,606 INFO L93 Difference]: Finished difference Result 65 states and 110 transitions. [2023-11-29 03:56:03,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:56:03,609 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 73 [2023-11-29 03:56:03,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:03,617 INFO L225 Difference]: With dead ends: 65 [2023-11-29 03:56:03,617 INFO L226 Difference]: Without dead ends: 32 [2023-11-29 03:56:03,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 72 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 03:56:03,624 INFO L413 NwaCegarLoop]: 42 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, 42 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 03:56:03,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:56:03,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-29 03:56:03,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-29 03:56:03,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:56:03,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 45 transitions. [2023-11-29 03:56:03,664 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 45 transitions. Word has length 73 [2023-11-29 03:56:03,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:03,665 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 45 transitions. [2023-11-29 03:56:03,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 03:56:03,665 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2023-11-29 03:56:03,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 03:56:03,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:03,669 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:03,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:56:03,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 03:56:03,872 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:56:03,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:03,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1924979285, now seen corresponding path program 1 times [2023-11-29 03:56:03,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:56:03,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469640364] [2023-11-29 03:56:03,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:03,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:56:03,921 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:56:03,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1500538819] [2023-11-29 03:56:03,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:03,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:03,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:03,923 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:56:03,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:56:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:56:04,046 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:56:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:56:04,118 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 03:56:04,118 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 03:56:04,119 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 03:56:04,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:56:04,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:56:04,324 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 03:56:04,327 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:56:04,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:56:04 BoogieIcfgContainer [2023-11-29 03:56:04,367 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:56:04,368 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:56:04,368 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:56:04,368 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:56:04,369 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:56:03" (3/4) ... [2023-11-29 03:56:04,371 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 03:56:04,372 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:56:04,373 INFO L158 Benchmark]: Toolchain (without parser) took 1997.85ms. Allocated memory was 151.0MB in the beginning and 199.2MB in the end (delta: 48.2MB). Free memory was 103.3MB in the beginning and 138.7MB in the end (delta: -35.5MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2023-11-29 03:56:04,373 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:56:04,374 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.96ms. Allocated memory is still 151.0MB. Free memory was 103.3MB in the beginning and 92.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 03:56:04,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.44ms. Allocated memory is still 151.0MB. Free memory was 91.8MB in the beginning and 90.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:56:04,375 INFO L158 Benchmark]: Boogie Preprocessor took 40.72ms. Allocated memory is still 151.0MB. Free memory was 90.1MB in the beginning and 87.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:56:04,375 INFO L158 Benchmark]: RCFGBuilder took 345.77ms. Allocated memory is still 151.0MB. Free memory was 87.9MB in the beginning and 73.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 03:56:04,376 INFO L158 Benchmark]: TraceAbstraction took 1298.36ms. Allocated memory was 151.0MB in the beginning and 199.2MB in the end (delta: 48.2MB). Free memory was 73.0MB in the beginning and 138.7MB in the end (delta: -65.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:56:04,376 INFO L158 Benchmark]: Witness Printer took 4.05ms. Allocated memory is still 199.2MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:56:04,379 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.96ms. Allocated memory is still 151.0MB. Free memory was 103.3MB in the beginning and 92.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.44ms. Allocated memory is still 151.0MB. Free memory was 91.8MB in the beginning and 90.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.72ms. Allocated memory is still 151.0MB. Free memory was 90.1MB in the beginning and 87.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 345.77ms. Allocated memory is still 151.0MB. Free memory was 87.9MB in the beginning and 73.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1298.36ms. Allocated memory was 151.0MB in the beginning and 199.2MB in the end (delta: 48.2MB). Free memory was 73.0MB in the beginning and 138.7MB in the end (delta: -65.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.05ms. Allocated memory is still 199.2MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 68, overapproximation of someUnaryDOUBLEoperation at line 24. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 5; [L23] double var_1_2 = 99999.67; [L24] double var_1_3 = -0.05; [L25] signed short int var_1_4 = 128; [L26] signed short int var_1_5 = 128; [L27] signed long int var_1_6 = -10; [L28] double var_1_7 = 8.6; [L29] unsigned char var_1_8 = 1; [L72] isInitial = 1 [L73] FCALL initially() [L74] COND TRUE 1 [L75] FCALL updateLastVariables() [L76] CALL updateVariables() [L45] var_1_2 = __VERIFIER_nondet_double() [L46] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=128, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5, var_1_4=128, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L46] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=5, var_1_4=128, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L47] var_1_3 = __VERIFIER_nondet_double() [L48] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=128, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5, var_1_4=128, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L48] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=5, var_1_4=128, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L49] var_1_4 = __VERIFIER_nondet_short() [L50] CALL assume_abort_if_not(var_1_4 >= -32768) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L50] RET assume_abort_if_not(var_1_4 >= -32768) VAL [isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L51] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L51] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L52] var_1_5 = __VERIFIER_nondet_short() [L53] CALL assume_abort_if_not(var_1_5 >= -32768) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L53] RET assume_abort_if_not(var_1_5 >= -32768) VAL [isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L54] CALL assume_abort_if_not(var_1_5 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L54] RET assume_abort_if_not(var_1_5 <= 32767) VAL [isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L55] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L55] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L56] var_1_6 = __VERIFIER_nondet_long() [L57] CALL assume_abort_if_not(var_1_6 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=16384, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=16384, var_1_7=43/5, var_1_8=1] [L57] RET assume_abort_if_not(var_1_6 >= -2147483648) VAL [isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=16384, var_1_7=43/5, var_1_8=1] [L58] CALL assume_abort_if_not(var_1_6 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=16384, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=16384, var_1_7=43/5, var_1_8=1] [L58] RET assume_abort_if_not(var_1_6 <= 2147483647) VAL [isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=16384, var_1_7=43/5, var_1_8=1] [L59] var_1_7 = __VERIFIER_nondet_double() [L60] CALL assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=16384, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=16384, var_1_8=1] [L60] RET assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=16384, var_1_8=1] [L61] var_1_8 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=16384] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=16384] [L62] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=16384] [L63] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=16384, var_1_8=9] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=16384, var_1_8=9] [L63] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=1, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=16384, var_1_8=9] [L76] RET updateVariables() [L77] CALL step() [L33] unsigned char stepLocal_0 = ((((63.6) < (var_1_2)) ? (63.6) : (var_1_2))) != var_1_3; VAL [isInitial=1, stepLocal_0=0, var_1_1=5, var_1_4=32767, var_1_5=2, var_1_6=16384, var_1_8=9] [L34] COND FALSE !(stepLocal_0 && ((var_1_4 / var_1_5) < var_1_6)) [L41] var_1_1 = 10 VAL [isInitial=1, stepLocal_0=0, var_1_1=10, var_1_4=32767, var_1_5=2, var_1_6=16384, var_1_8=9] [L77] RET step() [L78] CALL, EXPR property() [L68-L69] return ((((((63.6) < (var_1_2)) ? (63.6) : (var_1_2))) != var_1_3) && ((var_1_4 / var_1_5) < var_1_6)) ? ((var_1_3 >= (var_1_2 + var_1_7)) ? (var_1_1 == ((unsigned char) var_1_8)) : (var_1_1 == ((unsigned char) var_1_8))) : (var_1_1 == ((unsigned char) 10)) ; [L78] RET, EXPR property() [L78] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=10, var_1_4=32767, var_1_5=2, var_1_6=16384, var_1_8=9] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=10, var_1_4=32767, var_1_5=2, var_1_6=16384, var_1_8=9] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 42 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 219 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 173 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 264/264 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 03:56:04,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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 31c38fc0029b15eea235546e14c5b61b4e70b436ee39f6c640a47d6a6b4e9a18 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:56:06,329 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:56:06,401 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 03:56:06,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:56:06,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:56:06,437 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:56:06,438 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:56:06,438 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:56:06,439 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:56:06,440 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:56:06,440 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:56:06,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:56:06,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:56:06,442 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:56:06,443 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:56:06,443 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:56:06,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:56:06,444 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:56:06,445 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:56:06,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:56:06,446 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:56:06,446 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:56:06,446 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:56:06,447 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 03:56:06,447 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 03:56:06,448 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 03:56:06,448 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:56:06,448 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:56:06,449 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:56:06,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:56:06,450 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:56:06,450 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:56:06,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:56:06,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:56:06,451 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:56:06,451 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:56:06,451 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:56:06,451 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 03:56:06,452 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 03:56:06,452 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:56:06,452 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:56:06,452 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:56:06,453 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:56:06,453 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:56:06,453 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 03:56:06,453 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_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31c38fc0029b15eea235546e14c5b61b4e70b436ee39f6c640a47d6a6b4e9a18 [2023-11-29 03:56:06,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:56:06,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:56:06,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:56:06,798 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:56:06,798 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:56:06,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i [2023-11-29 03:56:09,562 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:56:09,762 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:56:09,763 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i [2023-11-29 03:56:09,771 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/data/ebae6d5f6/8454dbf7e075434ea19ca3b85d8ef9fc/FLAG3f5cc9ec9 [2023-11-29 03:56:09,783 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/data/ebae6d5f6/8454dbf7e075434ea19ca3b85d8ef9fc [2023-11-29 03:56:09,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:56:09,788 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:56:09,789 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:56:09,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:56:09,793 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:56:09,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:56:09" (1/1) ... [2023-11-29 03:56:09,795 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@409cdf0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:09, skipping insertion in model container [2023-11-29 03:56:09,795 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:56:09" (1/1) ... [2023-11-29 03:56:09,815 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:56:09,937 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_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i[915,928] [2023-11-29 03:56:09,966 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:56:09,982 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:56:09,993 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_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i[915,928] [2023-11-29 03:56:10,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:56:10,026 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:56:10,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:10 WrapperNode [2023-11-29 03:56:10,027 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:56:10,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:56:10,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:56:10,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:56:10,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:10" (1/1) ... [2023-11-29 03:56:10,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:10" (1/1) ... [2023-11-29 03:56:10,070 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 81 [2023-11-29 03:56:10,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:56:10,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:56:10,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:56:10,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:56:10,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:10" (1/1) ... [2023-11-29 03:56:10,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:10" (1/1) ... [2023-11-29 03:56:10,086 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:10" (1/1) ... [2023-11-29 03:56:10,099 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 03:56:10,099 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:10" (1/1) ... [2023-11-29 03:56:10,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:10" (1/1) ... [2023-11-29 03:56:10,108 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:10" (1/1) ... [2023-11-29 03:56:10,111 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:10" (1/1) ... [2023-11-29 03:56:10,113 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:10" (1/1) ... [2023-11-29 03:56:10,115 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:10" (1/1) ... [2023-11-29 03:56:10,119 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:56:10,120 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:56:10,120 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:56:10,120 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:56:10,121 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:10" (1/1) ... [2023-11-29 03:56:10,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:56:10,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:56:10,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:56:10,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:56:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:56:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 03:56:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:56:10,183 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:56:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:56:10,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:56:10,255 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:56:10,257 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:56:10,810 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:56:10,854 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:56:10,854 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:56:10,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:56:10 BoogieIcfgContainer [2023-11-29 03:56:10,854 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:56:10,857 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:56:10,857 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:56:10,861 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:56:10,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:56:09" (1/3) ... [2023-11-29 03:56:10,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2544e04c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:56:10, skipping insertion in model container [2023-11-29 03:56:10,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:56:10" (2/3) ... [2023-11-29 03:56:10,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2544e04c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:56:10, skipping insertion in model container [2023-11-29 03:56:10,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:56:10" (3/3) ... [2023-11-29 03:56:10,863 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-50.i [2023-11-29 03:56:10,882 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:56:10,882 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 03:56:10,928 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:56:10,935 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;@32cfd827, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:56:10,935 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 03:56:10,939 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:56:10,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 03:56:10,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:10,950 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:10,951 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:56:10,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:10,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1445116391, now seen corresponding path program 1 times [2023-11-29 03:56:10,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:56:10,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989374617] [2023-11-29 03:56:10,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:10,970 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 03:56:10,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:56:10,972 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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 03:56:10,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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 03:56:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:11,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 03:56:11,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:11,199 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-29 03:56:11,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:56:11,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:56:11,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989374617] [2023-11-29 03:56:11,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989374617] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:56:11,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:56:11,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:56:11,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385758639] [2023-11-29 03:56:11,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:56:11,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:56:11,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:56:11,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:56:11,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:56:11,241 INFO L87 Difference]: Start difference. First operand has 34 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 03:56:11,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:11,302 INFO L93 Difference]: Finished difference Result 65 states and 110 transitions. [2023-11-29 03:56:11,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:56:11,308 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 73 [2023-11-29 03:56:11,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:11,315 INFO L225 Difference]: With dead ends: 65 [2023-11-29 03:56:11,315 INFO L226 Difference]: Without dead ends: 32 [2023-11-29 03:56:11,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 72 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 03:56:11,322 INFO L413 NwaCegarLoop]: 42 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, 42 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 03:56:11,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:56:11,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-29 03:56:11,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-29 03:56:11,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:56:11,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 45 transitions. [2023-11-29 03:56:11,364 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 45 transitions. Word has length 73 [2023-11-29 03:56:11,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:11,364 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 45 transitions. [2023-11-29 03:56:11,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 03:56:11,365 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2023-11-29 03:56:11,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 03:56:11,368 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:11,369 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:11,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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 03:56:11,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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 03:56:11,573 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:56:11,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:11,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1924979285, now seen corresponding path program 1 times [2023-11-29 03:56:11,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:56:11,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489411777] [2023-11-29 03:56:11,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:11,575 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 03:56:11,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:56:11,576 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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 03:56:11,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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 03:56:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:11,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:56:11,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:13,561 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 03:56:13,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:56:13,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:56:13,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489411777] [2023-11-29 03:56:13,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489411777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:56:13,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:56:13,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:56:13,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183872905] [2023-11-29 03:56:13,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:56:13,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:56:13,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:56:13,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:56:13,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:56:13,566 INFO L87 Difference]: Start difference. First operand 32 states and 45 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 03:56:15,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:15,233 INFO L93 Difference]: Finished difference Result 38 states and 51 transitions. [2023-11-29 03:56:15,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:56:15,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 73 [2023-11-29 03:56:15,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:15,239 INFO L225 Difference]: With dead ends: 38 [2023-11-29 03:56:15,239 INFO L226 Difference]: Without dead ends: 36 [2023-11-29 03:56:15,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:56:15,241 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 8 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:56:15,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 127 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 03:56:15,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-29 03:56:15,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2023-11-29 03:56:15,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:56:15,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2023-11-29 03:56:15,248 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 73 [2023-11-29 03:56:15,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:15,249 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2023-11-29 03:56:15,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 03:56:15,249 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2023-11-29 03:56:15,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 03:56:15,250 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:56:15,250 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:15,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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 03:56:15,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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 03:56:15,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:56:15,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:56:15,452 INFO L85 PathProgramCache]: Analyzing trace with hash 445939482, now seen corresponding path program 1 times [2023-11-29 03:56:15,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:56:15,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984965512] [2023-11-29 03:56:15,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:56:15,453 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 03:56:15,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:56:15,454 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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 03:56:15,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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 03:56:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:56:15,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:56:15,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:56:17,323 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 03:56:17,324 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:56:17,324 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:56:17,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984965512] [2023-11-29 03:56:17,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984965512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:56:17,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:56:17,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:56:17,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057226599] [2023-11-29 03:56:17,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:56:17,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:56:17,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:56:17,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:56:17,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:56:17,328 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 03:56:19,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:56:19,316 INFO L93 Difference]: Finished difference Result 36 states and 49 transitions. [2023-11-29 03:56:19,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:56:19,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 74 [2023-11-29 03:56:19,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:56:19,321 INFO L225 Difference]: With dead ends: 36 [2023-11-29 03:56:19,321 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 03:56:19,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:56:19,323 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 12 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:56:19,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 124 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 03:56:19,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 03:56:19,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 03:56:19,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:56:19,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 03:56:19,325 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2023-11-29 03:56:19,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:56:19,326 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 03:56:19,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 03:56:19,326 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 03:56:19,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 03:56:19,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 03:56:19,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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 03:56:19,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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 03:56:19,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 03:56:19,544 INFO L902 garLoopResultBuilder]: At program point L60(line 60) the Hoare annotation is: true [2023-11-29 03:56:19,545 INFO L899 garLoopResultBuilder]: For program point L60-1(line 60) no Hoare annotation was computed. [2023-11-29 03:56:19,545 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-29 03:56:19,545 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-29 03:56:19,545 INFO L902 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: true [2023-11-29 03:56:19,545 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-29 03:56:19,545 INFO L899 garLoopResultBuilder]: For program point L48-1(line 48) no Hoare annotation was computed. [2023-11-29 03:56:19,546 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 43) no Hoare annotation was computed. [2023-11-29 03:56:19,546 INFO L902 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: true [2023-11-29 03:56:19,546 INFO L902 garLoopResultBuilder]: At program point L57-1(line 57) the Hoare annotation is: true [2023-11-29 03:56:19,546 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-29 03:56:19,546 INFO L902 garLoopResultBuilder]: At program point L53(line 53) the Hoare annotation is: true [2023-11-29 03:56:19,546 INFO L902 garLoopResultBuilder]: At program point L53-1(line 53) the Hoare annotation is: true [2023-11-29 03:56:19,547 INFO L902 garLoopResultBuilder]: At program point L74-2(lines 74 80) the Hoare annotation is: true [2023-11-29 03:56:19,547 INFO L899 garLoopResultBuilder]: For program point L74-3(lines 74 80) no Hoare annotation was computed. [2023-11-29 03:56:19,547 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 03:56:19,547 INFO L902 garLoopResultBuilder]: At program point L62(line 62) the Hoare annotation is: true [2023-11-29 03:56:19,547 INFO L902 garLoopResultBuilder]: At program point L62-1(line 62) the Hoare annotation is: true [2023-11-29 03:56:19,547 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2023-11-29 03:56:19,547 INFO L902 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: true [2023-11-29 03:56:19,548 INFO L902 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: true [2023-11-29 03:56:19,548 INFO L902 garLoopResultBuilder]: At program point L50-1(line 50) the Hoare annotation is: true [2023-11-29 03:56:19,548 INFO L902 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: true [2023-11-29 03:56:19,548 INFO L899 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2023-11-29 03:56:19,548 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 03:56:19,548 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 42) no Hoare annotation was computed. [2023-11-29 03:56:19,548 INFO L899 garLoopResultBuilder]: For program point L63(lines 44 64) no Hoare annotation was computed. [2023-11-29 03:56:19,549 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2023-11-29 03:56:19,549 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2023-11-29 03:56:19,549 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 39) no Hoare annotation was computed. [2023-11-29 03:56:19,549 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-29 03:56:19,549 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-29 03:56:19,549 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-29 03:56:19,549 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-29 03:56:19,553 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-29 03:56:19,555 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:56:19,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:56:19 BoogieIcfgContainer [2023-11-29 03:56:19,562 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:56:19,562 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:56:19,562 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:56:19,563 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:56:19,563 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:56:10" (3/4) ... [2023-11-29 03:56:19,565 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 03:56:19,569 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-29 03:56:19,573 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-29 03:56:19,574 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-29 03:56:19,574 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 03:56:19,575 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 03:56:19,650 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 03:56:19,651 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 03:56:19,651 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:56:19,652 INFO L158 Benchmark]: Toolchain (without parser) took 9864.18ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 71.0MB in the beginning and 67.3MB in the end (delta: 3.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2023-11-29 03:56:19,652 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 60.8MB. Free memory was 37.3MB in the beginning and 37.2MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:56:19,653 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.02ms. Allocated memory is still 94.4MB. Free memory was 70.7MB in the beginning and 58.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 03:56:19,653 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.37ms. Allocated memory is still 94.4MB. Free memory was 58.6MB in the beginning and 56.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:56:19,653 INFO L158 Benchmark]: Boogie Preprocessor took 47.39ms. Allocated memory is still 94.4MB. Free memory was 56.8MB in the beginning and 54.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 03:56:19,654 INFO L158 Benchmark]: RCFGBuilder took 734.83ms. Allocated memory is still 94.4MB. Free memory was 54.5MB in the beginning and 63.7MB in the end (delta: -9.3MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2023-11-29 03:56:19,654 INFO L158 Benchmark]: TraceAbstraction took 8704.64ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 63.2MB in the beginning and 72.5MB in the end (delta: -9.3MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2023-11-29 03:56:19,655 INFO L158 Benchmark]: Witness Printer took 88.87ms. Allocated memory is still 113.2MB. Free memory was 72.5MB in the beginning and 67.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 03:56:19,657 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 60.8MB. Free memory was 37.3MB in the beginning and 37.2MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.02ms. Allocated memory is still 94.4MB. Free memory was 70.7MB in the beginning and 58.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.37ms. Allocated memory is still 94.4MB. Free memory was 58.6MB in the beginning and 56.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.39ms. Allocated memory is still 94.4MB. Free memory was 56.8MB in the beginning and 54.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 734.83ms. Allocated memory is still 94.4MB. Free memory was 54.5MB in the beginning and 63.7MB in the end (delta: -9.3MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8704.64ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 63.2MB in the beginning and 72.5MB in the end (delta: -9.3MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Witness Printer took 88.87ms. Allocated memory is still 113.2MB. Free memory was 72.5MB in the beginning and 67.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 3, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 293 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 177 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 116 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 222 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 37 PreInvPairs, 51 NumberOfFragments, 14 HoareAnnotationTreeSize, 37 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 459 SizeOfPredicates, 24 NumberOfNonLiveVariables, 368 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 792/792 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-29 03:56:19,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab1dc96-8755-427a-8ec5-6c0a3a63d31d/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 Writing output log to file Ultimate.log Result: TRUE