./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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_642dfb9f-e4f6-4641-97e7-73b116a0e854/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 a5f64d67f4c69b79dfee625ca03a5205f4ff9e106670f1e5adca586e13e0121a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:15:25,047 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:15:25,110 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 00:15:25,116 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:15:25,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:15:25,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:15:25,146 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:15:25,146 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:15:25,147 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:15:25,148 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:15:25,148 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:15:25,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:15:25,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:15:25,150 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:15:25,151 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:15:25,151 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:15:25,152 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:15:25,152 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:15:25,153 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:15:25,153 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:15:25,154 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:15:25,157 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:15:25,157 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:15:25,158 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:15:25,158 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:15:25,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:15:25,159 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:15:25,160 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:15:25,160 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:15:25,161 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:15:25,161 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:15:25,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:15:25,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:15:25,162 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:15:25,162 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:15:25,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:15:25,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:15:25,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:15:25,163 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:15:25,163 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:15:25,164 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:15:25,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:15:25,164 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_642dfb9f-e4f6-4641-97e7-73b116a0e854/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5f64d67f4c69b79dfee625ca03a5205f4ff9e106670f1e5adca586e13e0121a [2023-11-29 00:15:25,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:15:25,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:15:25,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:15:25,434 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:15:25,434 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:15:25,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-40.i [2023-11-29 00:15:28,342 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:15:28,557 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:15:28,558 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-40.i [2023-11-29 00:15:28,567 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/data/e22893f23/d03403a09a994795b2d18285e9cd3548/FLAGce567cb84 [2023-11-29 00:15:28,581 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/data/e22893f23/d03403a09a994795b2d18285e9cd3548 [2023-11-29 00:15:28,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:15:28,584 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:15:28,585 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:15:28,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:15:28,591 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:15:28,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:15:28" (1/1) ... [2023-11-29 00:15:28,593 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f9df374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:28, skipping insertion in model container [2023-11-29 00:15:28,593 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:15:28" (1/1) ... [2023-11-29 00:15:28,627 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:15:28,769 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_642dfb9f-e4f6-4641-97e7-73b116a0e854/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-40.i[915,928] [2023-11-29 00:15:28,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:15:28,841 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:15:28,852 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_642dfb9f-e4f6-4641-97e7-73b116a0e854/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-40.i[915,928] [2023-11-29 00:15:28,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:15:28,896 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:15:28,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:28 WrapperNode [2023-11-29 00:15:28,897 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:15:28,899 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:15:28,899 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:15:28,899 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:15:28,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:28" (1/1) ... [2023-11-29 00:15:28,922 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:28" (1/1) ... [2023-11-29 00:15:28,968 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2023-11-29 00:15:28,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:15:28,970 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:15:28,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:15:28,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:15:28,984 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:28" (1/1) ... [2023-11-29 00:15:28,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:28" (1/1) ... [2023-11-29 00:15:28,988 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:28" (1/1) ... [2023-11-29 00:15:29,012 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 00:15:29,012 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:28" (1/1) ... [2023-11-29 00:15:29,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:28" (1/1) ... [2023-11-29 00:15:29,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:28" (1/1) ... [2023-11-29 00:15:29,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:28" (1/1) ... [2023-11-29 00:15:29,036 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:28" (1/1) ... [2023-11-29 00:15:29,038 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:28" (1/1) ... [2023-11-29 00:15:29,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:15:29,048 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:15:29,048 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:15:29,048 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:15:29,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:28" (1/1) ... [2023-11-29 00:15:29,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:15:29,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:29,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:15:29,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:15:29,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:15:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 00:15:29,134 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 00:15:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:15:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:15:29,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:15:29,219 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:15:29,221 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:15:29,545 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:15:29,589 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:15:29,590 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 00:15:29,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:15:29 BoogieIcfgContainer [2023-11-29 00:15:29,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:15:29,594 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:15:29,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:15:29,598 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:15:29,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:15:28" (1/3) ... [2023-11-29 00:15:29,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1b80c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:15:29, skipping insertion in model container [2023-11-29 00:15:29,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:28" (2/3) ... [2023-11-29 00:15:29,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1b80c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:15:29, skipping insertion in model container [2023-11-29 00:15:29,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:15:29" (3/3) ... [2023-11-29 00:15:29,602 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-40.i [2023-11-29 00:15:29,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:15:29,623 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 00:15:29,679 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:15:29,687 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;@52321660, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:15:29,687 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 00:15:29,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 30 states have internal predecessors, (43), 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 00:15:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 00:15:29,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:29,703 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:15:29,704 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:15:29,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:29,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1953190482, now seen corresponding path program 1 times [2023-11-29 00:15:29,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:29,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094154868] [2023-11-29 00:15:29,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:29,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:29,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:29,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094154868] [2023-11-29 00:15:29,907 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 00:15:29,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143164926] [2023-11-29 00:15:29,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:29,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:29,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:29,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:29,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:15:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:30,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 00:15:30,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:30,116 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 00:15:30,117 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:15:30,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143164926] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:15:30,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:15:30,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:15:30,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534941380] [2023-11-29 00:15:30,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:15:30,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 00:15:30,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:30,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 00:15:30,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:15:30,163 INFO L87 Difference]: Start difference. First operand has 44 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 30 states have internal predecessors, (43), 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 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 00:15:30,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:30,207 INFO L93 Difference]: Finished difference Result 85 states and 144 transitions. [2023-11-29 00:15:30,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 00:15:30,211 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (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 81 [2023-11-29 00:15:30,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:30,220 INFO L225 Difference]: With dead ends: 85 [2023-11-29 00:15:30,220 INFO L226 Difference]: Without dead ends: 42 [2023-11-29 00:15:30,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 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 00:15:30,229 INFO L413 NwaCegarLoop]: 58 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, 58 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 00:15:30,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:15:30,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-29 00:15:30,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-29 00:15:30,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 28 states have internal predecessors, (37), 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 00:15:30,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 61 transitions. [2023-11-29 00:15:30,284 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 61 transitions. Word has length 81 [2023-11-29 00:15:30,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:30,285 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 61 transitions. [2023-11-29 00:15:30,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (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 00:15:30,285 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 61 transitions. [2023-11-29 00:15:30,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 00:15:30,290 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:30,291 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:15:30,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:15:30,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 00:15:30,498 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:15:30,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:30,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1812912933, now seen corresponding path program 1 times [2023-11-29 00:15:30,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:30,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352766125] [2023-11-29 00:15:30,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:30,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:30,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:30,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [518899282] [2023-11-29 00:15:30,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:30,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:30,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:30,556 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:30,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 00:15:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:30,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:15:30,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:30,731 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 00:15:30,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:15:30,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:30,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352766125] [2023-11-29 00:15:30,732 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:15:30,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518899282] [2023-11-29 00:15:30,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518899282] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:15:30,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:15:30,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:15:30,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321165743] [2023-11-29 00:15:30,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:15:30,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:15:30,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:30,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:15:30,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:15:30,736 INFO L87 Difference]: Start difference. First operand 42 states and 61 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 00:15:31,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:31,358 INFO L93 Difference]: Finished difference Result 83 states and 121 transitions. [2023-11-29 00:15:31,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:15:31,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 82 [2023-11-29 00:15:31,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:31,363 INFO L225 Difference]: With dead ends: 83 [2023-11-29 00:15:31,363 INFO L226 Difference]: Without dead ends: 42 [2023-11-29 00:15:31,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:15:31,365 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 6 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:31,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 104 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:15:31,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-29 00:15:31,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-29 00:15:31,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 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 00:15:31,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2023-11-29 00:15:31,376 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 60 transitions. Word has length 82 [2023-11-29 00:15:31,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:31,378 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 60 transitions. [2023-11-29 00:15:31,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 00:15:31,379 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 60 transitions. [2023-11-29 00:15:31,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 00:15:31,381 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:31,382 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:15:31,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 00:15:31,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-29 00:15:31,583 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:15:31,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:31,583 INFO L85 PathProgramCache]: Analyzing trace with hash -37905571, now seen corresponding path program 1 times [2023-11-29 00:15:31,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:31,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60667166] [2023-11-29 00:15:31,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:31,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:31,625 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:31,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [647240498] [2023-11-29 00:15:31,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:31,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:31,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:31,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:31,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 00:15:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:31,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 00:15:31,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:31,917 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 71 proven. 3 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-29 00:15:31,917 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:15:32,086 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 00:15:32,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:32,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60667166] [2023-11-29 00:15:32,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:15:32,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647240498] [2023-11-29 00:15:32,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647240498] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 00:15:32,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:15:32,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-29 00:15:32,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388138141] [2023-11-29 00:15:32,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:15:32,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:15:32,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:32,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:15:32,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:15:32,090 INFO L87 Difference]: Start difference. First operand 42 states and 60 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 00:15:32,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:32,666 INFO L93 Difference]: Finished difference Result 237 states and 332 transitions. [2023-11-29 00:15:32,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:15:32,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 82 [2023-11-29 00:15:32,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:32,671 INFO L225 Difference]: With dead ends: 237 [2023-11-29 00:15:32,671 INFO L226 Difference]: Without dead ends: 196 [2023-11-29 00:15:32,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:15:32,674 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 197 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:32,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 229 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:15:32,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-29 00:15:32,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 99. [2023-11-29 00:15:32,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 61 states have (on average 1.2131147540983607) internal successors, (74), 63 states have internal predecessors, (74), 33 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-29 00:15:32,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 140 transitions. [2023-11-29 00:15:32,713 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 140 transitions. Word has length 82 [2023-11-29 00:15:32,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:32,714 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 140 transitions. [2023-11-29 00:15:32,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 00:15:32,715 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 140 transitions. [2023-11-29 00:15:32,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 00:15:32,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:32,717 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:15:32,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 00:15:32,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-29 00:15:32,919 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:15:32,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:32,919 INFO L85 PathProgramCache]: Analyzing trace with hash -37845989, now seen corresponding path program 1 times [2023-11-29 00:15:32,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:32,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070894621] [2023-11-29 00:15:32,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:32,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:32,949 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:32,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [344857057] [2023-11-29 00:15:32,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:32,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:32,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:32,952 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:32,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 00:15:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:15:33,054 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:15:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:15:33,158 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:15:33,159 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 00:15:33,160 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 00:15:33,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 00:15:33,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:33,368 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-29 00:15:33,373 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 00:15:33,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:15:33 BoogieIcfgContainer [2023-11-29 00:15:33,447 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 00:15:33,448 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:15:33,448 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:15:33,448 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:15:33,449 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:15:29" (3/4) ... [2023-11-29 00:15:33,450 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 00:15:33,451 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:15:33,452 INFO L158 Benchmark]: Toolchain (without parser) took 4867.63ms. Allocated memory is still 184.5MB. Free memory was 146.9MB in the beginning and 86.2MB in the end (delta: 60.7MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. [2023-11-29 00:15:33,452 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 109.1MB. Free memory is still 60.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:15:33,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.13ms. Allocated memory is still 184.5MB. Free memory was 146.4MB in the beginning and 133.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 00:15:33,453 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.52ms. Allocated memory is still 184.5MB. Free memory was 133.2MB in the beginning and 129.2MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 00:15:33,454 INFO L158 Benchmark]: Boogie Preprocessor took 76.95ms. Allocated memory is still 184.5MB. Free memory was 129.2MB in the beginning and 122.7MB in the end (delta: 6.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 00:15:33,454 INFO L158 Benchmark]: RCFGBuilder took 542.99ms. Allocated memory is still 184.5MB. Free memory was 122.2MB in the beginning and 99.9MB in the end (delta: 22.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 00:15:33,454 INFO L158 Benchmark]: TraceAbstraction took 3853.18ms. Allocated memory is still 184.5MB. Free memory was 99.1MB in the beginning and 86.2MB in the end (delta: 13.0MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2023-11-29 00:15:33,454 INFO L158 Benchmark]: Witness Printer took 3.36ms. Allocated memory is still 184.5MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:15:33,457 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 109.1MB. Free memory is still 60.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.13ms. Allocated memory is still 184.5MB. Free memory was 146.4MB in the beginning and 133.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.52ms. Allocated memory is still 184.5MB. Free memory was 133.2MB in the beginning and 129.2MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.95ms. Allocated memory is still 184.5MB. Free memory was 129.2MB in the beginning and 122.7MB in the end (delta: 6.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 542.99ms. Allocated memory is still 184.5MB. Free memory was 122.2MB in the beginning and 99.9MB in the end (delta: 22.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3853.18ms. Allocated memory is still 184.5MB. Free memory was 99.1MB in the beginning and 86.2MB in the end (delta: 13.0MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * Witness Printer took 3.36ms. Allocated memory is still 184.5MB. Free memory is still 86.2MB. 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 someBinaryFLOATComparisonOperation at line 106, overapproximation of someBinaryDOUBLEComparisonOperation at line 106, overapproximation of someUnaryDOUBLEoperation at line 35. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 128; [L23] signed short int var_1_4 = -200; [L24] unsigned short int var_1_8 = 5; [L25] unsigned char var_1_9 = 1; [L26] unsigned char var_1_10 = 0; [L27] unsigned char var_1_11 = 0; [L28] unsigned char var_1_12 = 16; [L29] unsigned char var_1_15 = 50; [L30] unsigned short int var_1_16 = 1; [L31] float var_1_17 = 25.4; [L32] float var_1_20 = 1.6; [L33] unsigned short int var_1_21 = 0; [L34] float var_1_24 = 128.5; [L35] double var_1_25 = -0.5; [L36] signed long int var_1_26 = 4; [L37] unsigned char last_1_var_1_9 = 1; [L38] float last_1_var_1_24 = 128.5; [L110] isInitial = 1 [L111] FCALL initially() [L112] COND TRUE 1 [L113] CALL updateLastVariables() [L102] last_1_var_1_9 = var_1_9 [L103] last_1_var_1_24 = var_1_24 [L113] RET updateLastVariables() [L114] CALL updateVariables() [L82] var_1_4 = __VERIFIER_nondet_short() [L83] CALL assume_abort_if_not(var_1_4 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=5, var_1_9=1] [L83] RET assume_abort_if_not(var_1_4 >= -32768) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=5, var_1_9=1] [L84] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=5, var_1_9=1] [L84] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=5, var_1_9=1] [L85] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=5, var_1_9=1] [L85] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=5, var_1_9=1] [L86] var_1_8 = __VERIFIER_nondet_ushort() [L87] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_9=1] [L87] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_9=1] [L88] CALL assume_abort_if_not(var_1_8 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L88] RET assume_abort_if_not(var_1_8 <= 32767) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L89] var_1_10 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L90] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L91] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L91] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L92] var_1_11 = __VERIFIER_nondet_uchar() [L93] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L93] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L94] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L94] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L95] var_1_15 = __VERIFIER_nondet_uchar() [L96] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L96] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L97] CALL assume_abort_if_not(var_1_15 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L97] RET assume_abort_if_not(var_1_15 <= 254) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L98] var_1_20 = __VERIFIER_nondet_float() [L99] CALL assume_abort_if_not((var_1_20 >= -922337.2036854765600e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L99] RET assume_abort_if_not((var_1_20 >= -922337.2036854765600e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L114] RET updateVariables() [L115] CALL step() [L42] COND FALSE !((last_1_var_1_9 && var_1_11) && (50 > var_1_8)) [L49] var_1_12 = var_1_15 VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L51] unsigned char stepLocal_1 = var_1_10; VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, stepLocal_1=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=1] [L52] COND TRUE (var_1_12 != var_1_4) || stepLocal_1 [L53] var_1_9 = var_1_11 VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, stepLocal_1=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=1, var_1_8=0, var_1_9=0] [L55] var_1_26 = var_1_12 VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, stepLocal_1=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=1, var_1_4=1, var_1_8=0, var_1_9=0] [L56] COND FALSE !((var_1_9 && var_1_11) && var_1_9) [L59] var_1_21 = ((23370 - var_1_15) + var_1_12) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, stepLocal_1=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=23370, var_1_24=257/2, var_1_26=1, var_1_4=1, var_1_8=0, var_1_9=0] [L61] signed long int stepLocal_2 = -4; VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, stepLocal_1=1, stepLocal_2=-4, var_1_10=1, var_1_11=0, var_1_12=1, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=23370, var_1_24=257/2, var_1_26=1, var_1_4=1, var_1_8=0, var_1_9=0] [L62] COND FALSE !(! (-4 < var_1_12)) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, stepLocal_1=1, stepLocal_2=-4, var_1_10=1, var_1_11=0, var_1_12=1, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=23370, var_1_24=257/2, var_1_26=1, var_1_4=1, var_1_8=0, var_1_9=0] [L65] COND FALSE !(stepLocal_2 > var_1_21) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, stepLocal_1=1, stepLocal_2=-4, var_1_10=1, var_1_11=0, var_1_12=1, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=23370, var_1_24=257/2, var_1_26=1, var_1_4=1, var_1_8=0, var_1_9=0] [L69] var_1_16 = (((((((((256) > (var_1_12)) ? (256) : (var_1_12))) + var_1_12)) < (var_1_15)) ? ((((((256) > (var_1_12)) ? (256) : (var_1_12))) + var_1_12)) : (var_1_15))) [L70] var_1_25 = var_1_20 [L71] unsigned short int stepLocal_0 = var_1_16; VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, stepLocal_0=1, stepLocal_1=1, stepLocal_2=-4, var_1_10=1, var_1_11=0, var_1_12=1, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=2, var_1_21=23370, var_1_24=257/2, var_1_25=2, var_1_26=1, var_1_4=1, var_1_8=0, var_1_9=0] [L72] COND TRUE ((var_1_16 * var_1_16) / var_1_4) <= stepLocal_0 [L73] var_1_1 = var_1_12 VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, stepLocal_0=1, stepLocal_1=1, stepLocal_2=-4, var_1_10=1, var_1_11=0, var_1_12=1, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=1, var_1_20=2, var_1_21=23370, var_1_24=257/2, var_1_25=2, var_1_26=1, var_1_4=1, var_1_8=0, var_1_9=0] [L77] COND FALSE !((var_1_16 - ((((var_1_1) < 0 ) ? -(var_1_1) : (var_1_1)))) < (var_1_12 - var_1_16)) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, stepLocal_0=1, stepLocal_1=1, stepLocal_2=-4, var_1_10=1, var_1_11=0, var_1_12=1, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=1, var_1_20=2, var_1_21=23370, var_1_24=257/2, var_1_25=2, var_1_26=1, var_1_4=1, var_1_8=0, var_1_9=0] [L115] RET step() [L116] CALL, EXPR property() [L106-L107] return (((((((((((var_1_16 * var_1_16) / var_1_4) <= var_1_16) ? (var_1_1 == ((unsigned short int) var_1_12)) : (var_1_1 == ((unsigned short int) (var_1_12 + var_1_12)))) && (((var_1_12 != var_1_4) || var_1_10) ? (var_1_9 == ((unsigned char) var_1_11)) : 1)) && (((last_1_var_1_9 && var_1_11) && (50 > var_1_8)) ? (((- last_1_var_1_24) < last_1_var_1_24) ? (last_1_var_1_9 ? (var_1_12 == ((unsigned char) 5)) : 1) : 1) : (var_1_12 == ((unsigned char) var_1_15)))) && (var_1_16 == ((unsigned short int) (((((((((256) > (var_1_12)) ? (256) : (var_1_12))) + var_1_12)) < (var_1_15)) ? ((((((256) > (var_1_12)) ? (256) : (var_1_12))) + var_1_12)) : (var_1_15)))))) && (((var_1_16 - ((((var_1_1) < 0 ) ? -(var_1_1) : (var_1_1)))) < (var_1_12 - var_1_16)) ? (var_1_17 == ((float) var_1_20)) : 1)) && (((var_1_9 && var_1_11) && var_1_9) ? (var_1_21 == ((unsigned short int) (var_1_26 + (var_1_15 + ((((var_1_12) > (var_1_12)) ? (var_1_12) : (var_1_12))))))) : (var_1_21 == ((unsigned short int) ((23370 - var_1_15) + var_1_12))))) && ((! (-4 < var_1_12)) ? (var_1_24 == ((float) var_1_20)) : ((-4 > var_1_21) ? (var_1_24 == ((float) 10.6f)) : 1))) && (var_1_25 == ((double) var_1_20))) && (var_1_26 == ((signed long int) var_1_12)) ; [L116] RET, EXPR property() [L116] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=1, var_1_20=2, var_1_21=23370, var_1_24=257/2, var_1_25=2, var_1_26=1, var_1_4=1, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=1, var_1_15=1, var_1_16=1, var_1_17=127/5, var_1_1=1, var_1_20=2, var_1_21=23370, var_1_24=257/2, var_1_25=2, var_1_26=1, var_1_4=1, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 4, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 203 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 203 mSDsluCounter, 391 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 186 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 211 IncrementalHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 205 mSDtfsCounter, 211 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 329 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=3, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 97 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 408 NumberOfCodeBlocks, 408 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 544 SizeOfPredicates, 8 NumberOfNonLiveVariables, 652 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1053/1056 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 00:15:33,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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_642dfb9f-e4f6-4641-97e7-73b116a0e854/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 a5f64d67f4c69b79dfee625ca03a5205f4ff9e106670f1e5adca586e13e0121a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:15:35,680 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:15:35,775 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 00:15:35,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:15:35,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:15:35,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:15:35,815 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:15:35,816 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:15:35,817 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:15:35,817 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:15:35,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:15:35,819 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:15:35,819 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:15:35,820 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:15:35,821 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:15:35,821 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:15:35,822 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:15:35,822 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:15:35,823 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:15:35,824 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:15:35,824 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:15:35,825 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:15:35,826 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:15:35,826 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 00:15:35,827 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 00:15:35,827 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 00:15:35,828 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:15:35,828 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:15:35,829 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:15:35,829 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:15:35,829 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:15:35,830 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:15:35,830 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:15:35,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:15:35,831 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:15:35,831 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:15:35,832 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:15:35,832 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 00:15:35,832 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 00:15:35,832 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:15:35,833 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:15:35,833 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:15:35,833 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:15:35,833 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:15:35,834 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 00:15:35,834 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_642dfb9f-e4f6-4641-97e7-73b116a0e854/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5f64d67f4c69b79dfee625ca03a5205f4ff9e106670f1e5adca586e13e0121a [2023-11-29 00:15:36,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:15:36,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:15:36,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:15:36,229 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:15:36,229 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:15:36,231 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-40.i [2023-11-29 00:15:39,229 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:15:39,475 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:15:39,476 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-40.i [2023-11-29 00:15:39,486 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/data/8682c33fd/808fbbd3422e4fbbad117574b724f93c/FLAG6ba955e0d [2023-11-29 00:15:39,501 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/data/8682c33fd/808fbbd3422e4fbbad117574b724f93c [2023-11-29 00:15:39,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:15:39,506 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:15:39,507 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:15:39,507 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:15:39,512 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:15:39,513 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:15:39" (1/1) ... [2023-11-29 00:15:39,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3c853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:39, skipping insertion in model container [2023-11-29 00:15:39,515 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:15:39" (1/1) ... [2023-11-29 00:15:39,545 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:15:39,686 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_642dfb9f-e4f6-4641-97e7-73b116a0e854/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-40.i[915,928] [2023-11-29 00:15:39,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:15:39,757 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:15:39,769 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_642dfb9f-e4f6-4641-97e7-73b116a0e854/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-40.i[915,928] [2023-11-29 00:15:39,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:15:39,822 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:15:39,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:39 WrapperNode [2023-11-29 00:15:39,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:15:39,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:15:39,823 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:15:39,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:15:39,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:39" (1/1) ... [2023-11-29 00:15:39,845 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:39" (1/1) ... [2023-11-29 00:15:39,879 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 108 [2023-11-29 00:15:39,880 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:15:39,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:15:39,881 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:15:39,881 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:15:39,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:39" (1/1) ... [2023-11-29 00:15:39,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:39" (1/1) ... [2023-11-29 00:15:39,911 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:39" (1/1) ... [2023-11-29 00:15:39,950 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 00:15:39,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:39" (1/1) ... [2023-11-29 00:15:39,951 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:39" (1/1) ... [2023-11-29 00:15:39,963 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:39" (1/1) ... [2023-11-29 00:15:39,968 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:39" (1/1) ... [2023-11-29 00:15:39,971 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:39" (1/1) ... [2023-11-29 00:15:39,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:39" (1/1) ... [2023-11-29 00:15:39,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:15:39,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:15:39,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:15:39,980 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:15:39,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:39" (1/1) ... [2023-11-29 00:15:39,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:15:40,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:40,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:15:40,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:15:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:15:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 00:15:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 00:15:40,059 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 00:15:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:15:40,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:15:40,154 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:15:40,156 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:15:40,842 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:15:40,898 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:15:40,898 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 00:15:40,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:15:40 BoogieIcfgContainer [2023-11-29 00:15:40,899 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:15:40,902 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:15:40,902 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:15:40,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:15:40,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:15:39" (1/3) ... [2023-11-29 00:15:40,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628c021b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:15:40, skipping insertion in model container [2023-11-29 00:15:40,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:15:39" (2/3) ... [2023-11-29 00:15:40,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628c021b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:15:40, skipping insertion in model container [2023-11-29 00:15:40,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:15:40" (3/3) ... [2023-11-29 00:15:40,909 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-40.i [2023-11-29 00:15:40,928 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:15:40,928 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 00:15:40,979 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:15:40,986 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;@7bb698ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:15:40,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 00:15:40,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 30 states have internal predecessors, (43), 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 00:15:41,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 00:15:41,002 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:41,003 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:15:41,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:15:41,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:41,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1953190482, now seen corresponding path program 1 times [2023-11-29 00:15:41,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:15:41,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788397772] [2023-11-29 00:15:41,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:41,024 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 00:15:41,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:15:41,025 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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 00:15:41,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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 00:15:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:41,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 00:15:41,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:41,347 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-11-29 00:15:41,348 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:15:41,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:15:41,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788397772] [2023-11-29 00:15:41,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788397772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:15:41,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:15:41,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:15:41,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952684195] [2023-11-29 00:15:41,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:15:41,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 00:15:41,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:15:41,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 00:15:41,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:15:41,391 INFO L87 Difference]: Start difference. First operand has 44 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 30 states have internal predecessors, (43), 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 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 00:15:41,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:41,591 INFO L93 Difference]: Finished difference Result 85 states and 144 transitions. [2023-11-29 00:15:41,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 00:15:41,603 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 81 [2023-11-29 00:15:41,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:41,611 INFO L225 Difference]: With dead ends: 85 [2023-11-29 00:15:41,612 INFO L226 Difference]: Without dead ends: 42 [2023-11-29 00:15:41,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 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 00:15:41,619 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:41,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:15:41,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-29 00:15:41,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-29 00:15:41,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 28 states have internal predecessors, (37), 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 00:15:41,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 61 transitions. [2023-11-29 00:15:41,664 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 61 transitions. Word has length 81 [2023-11-29 00:15:41,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:41,664 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 61 transitions. [2023-11-29 00:15:41,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 00:15:41,665 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 61 transitions. [2023-11-29 00:15:41,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 00:15:41,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:41,670 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:15:41,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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 00:15:41,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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 00:15:41,871 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:15:41,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:41,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1812912933, now seen corresponding path program 1 times [2023-11-29 00:15:41,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:15:41,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225224101] [2023-11-29 00:15:41,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:41,874 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 00:15:41,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:15:41,875 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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 00:15:41,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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 00:15:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:42,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:15:42,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:42,174 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 00:15:42,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:15:42,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:15:42,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225224101] [2023-11-29 00:15:42,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225224101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:15:42,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:15:42,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:15:42,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57920846] [2023-11-29 00:15:42,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:15:42,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:15:42,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:15:42,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:15:42,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:15:42,193 INFO L87 Difference]: Start difference. First operand 42 states and 61 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 00:15:42,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:42,526 INFO L93 Difference]: Finished difference Result 83 states and 121 transitions. [2023-11-29 00:15:42,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:15:42,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 82 [2023-11-29 00:15:42,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:42,541 INFO L225 Difference]: With dead ends: 83 [2023-11-29 00:15:42,541 INFO L226 Difference]: Without dead ends: 42 [2023-11-29 00:15:42,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:15:42,544 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 6 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:42,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 104 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:15:42,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-29 00:15:42,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-29 00:15:42,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 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 00:15:42,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2023-11-29 00:15:42,556 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 60 transitions. Word has length 82 [2023-11-29 00:15:42,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:42,558 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 60 transitions. [2023-11-29 00:15:42,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 00:15:42,558 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 60 transitions. [2023-11-29 00:15:42,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 00:15:42,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:42,561 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:15:42,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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 00:15:42,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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 00:15:42,762 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:15:42,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:42,762 INFO L85 PathProgramCache]: Analyzing trace with hash -37905571, now seen corresponding path program 1 times [2023-11-29 00:15:42,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:15:42,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302425258] [2023-11-29 00:15:42,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:42,764 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 00:15:42,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:15:42,765 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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 00:15:42,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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 00:15:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:43,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:15:43,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:43,182 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 00:15:43,182 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:15:43,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:15:43,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302425258] [2023-11-29 00:15:43,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302425258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:15:43,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:15:43,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:15:43,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074599621] [2023-11-29 00:15:43,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:15:43,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:15:43,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:15:43,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:15:43,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:15:43,186 INFO L87 Difference]: Start difference. First operand 42 states and 60 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 00:15:44,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:44,828 INFO L93 Difference]: Finished difference Result 180 states and 251 transitions. [2023-11-29 00:15:44,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:15:44,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 82 [2023-11-29 00:15:44,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:44,833 INFO L225 Difference]: With dead ends: 180 [2023-11-29 00:15:44,833 INFO L226 Difference]: Without dead ends: 139 [2023-11-29 00:15:44,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:15:44,836 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 110 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:44,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 00:15:44,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-29 00:15:44,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 82. [2023-11-29 00:15:44,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 54 states have (on average 1.2407407407407407) internal successors, (67), 55 states have internal predecessors, (67), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 00:15:44,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 115 transitions. [2023-11-29 00:15:44,867 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 115 transitions. Word has length 82 [2023-11-29 00:15:44,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:44,868 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 115 transitions. [2023-11-29 00:15:44,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 00:15:44,868 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 115 transitions. [2023-11-29 00:15:44,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 00:15:44,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:44,870 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:15:44,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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 00:15:45,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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 00:15:45,071 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:15:45,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:45,072 INFO L85 PathProgramCache]: Analyzing trace with hash -37845989, now seen corresponding path program 1 times [2023-11-29 00:15:45,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:15:45,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173348166] [2023-11-29 00:15:45,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:45,073 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 00:15:45,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:15:45,075 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/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 00:15:45,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_642dfb9f-e4f6-4641-97e7-73b116a0e854/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 00:15:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:45,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 00:15:45,314 INFO L285 TraceCheckSpWp]: Computing forward predicates...