./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.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_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cdf93f59dd274ab086c68aef6e20ded5f344701c9de4a190c50002498c40f88d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:51:31,176 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:51:31,244 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:51:31,250 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:51:31,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:51:31,273 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:51:31,274 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:51:31,275 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:51:31,276 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:51:31,281 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:51:31,283 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:51:31,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:51:31,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:51:31,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:51:31,288 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:51:31,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:51:31,290 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:51:31,293 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:51:31,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:51:31,295 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:51:31,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:51:31,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:51:31,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:51:31,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:51:31,298 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:51:31,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:51:31,299 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:51:31,299 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:51:31,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:51:31,301 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:51:31,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:51:31,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:31,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:51:31,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:51:31,303 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:51:31,304 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:51:31,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:51:31,304 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:51:31,304 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:51:31,305 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:51:31,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:51:31,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:51:31,306 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_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdf93f59dd274ab086c68aef6e20ded5f344701c9de4a190c50002498c40f88d [2023-11-26 11:51:31,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:51:31,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:51:31,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:51:31,681 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:51:31,682 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:51:31,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i [2023-11-26 11:51:34,728 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:51:34,981 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:51:34,982 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i [2023-11-26 11:51:35,003 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/data/0d3ab46c0/60eb8e95e6b94261af604166ee5baa1c/FLAG4b497da40 [2023-11-26 11:51:35,017 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/data/0d3ab46c0/60eb8e95e6b94261af604166ee5baa1c [2023-11-26 11:51:35,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:51:35,022 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:51:35,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:35,024 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:51:35,029 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:51:35,030 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:35" (1/1) ... [2023-11-26 11:51:35,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77001039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:35, skipping insertion in model container [2023-11-26 11:51:35,032 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:35" (1/1) ... [2023-11-26 11:51:35,063 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:51:35,277 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_055a50a6-1573-47f9-bc54-bfca8af9047b/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i[916,929] [2023-11-26 11:51:35,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:35,348 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:51:35,361 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_055a50a6-1573-47f9-bc54-bfca8af9047b/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i[916,929] [2023-11-26 11:51:35,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:35,408 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:51:35,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:35 WrapperNode [2023-11-26 11:51:35,409 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:35,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:35,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:51:35,411 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:51:35,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:35" (1/1) ... [2023-11-26 11:51:35,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:35" (1/1) ... [2023-11-26 11:51:35,487 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 131 [2023-11-26 11:51:35,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:35,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:51:35,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:51:35,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:51:35,501 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:35" (1/1) ... [2023-11-26 11:51:35,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:35" (1/1) ... [2023-11-26 11:51:35,506 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:35" (1/1) ... [2023-11-26 11:51:35,520 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:51:35,521 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:35" (1/1) ... [2023-11-26 11:51:35,521 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:35" (1/1) ... [2023-11-26 11:51:35,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:35" (1/1) ... [2023-11-26 11:51:35,535 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:35" (1/1) ... [2023-11-26 11:51:35,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:35" (1/1) ... [2023-11-26 11:51:35,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:35" (1/1) ... [2023-11-26 11:51:35,543 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:51:35,544 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:51:35,544 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:51:35,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:51:35,545 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:35" (1/1) ... [2023-11-26 11:51:35,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:35,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:35,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:35,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:51:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:51:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:51:35,649 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:51:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:51:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:51:35,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:51:35,752 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:51:35,755 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:51:36,152 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:51:36,230 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:51:36,231 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:51:36,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:36 BoogieIcfgContainer [2023-11-26 11:51:36,232 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:51:36,235 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:51:36,235 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:51:36,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:51:36,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:51:35" (1/3) ... [2023-11-26 11:51:36,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c419acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:36, skipping insertion in model container [2023-11-26 11:51:36,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:35" (2/3) ... [2023-11-26 11:51:36,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c419acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:36, skipping insertion in model container [2023-11-26 11:51:36,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:36" (3/3) ... [2023-11-26 11:51:36,243 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-0.i [2023-11-26 11:51:36,264 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:51:36,265 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:51:36,312 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:51:36,319 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;@243b898c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:51:36,319 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:51:36,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 35 states have (on average 1.4) internal successors, (49), 36 states have internal predecessors, (49), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 11:51:36,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-26 11:51:36,341 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:36,342 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:36,343 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:36,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:36,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1555128480, now seen corresponding path program 1 times [2023-11-26 11:51:36,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:36,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422810737] [2023-11-26 11:51:36,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:36,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:51:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:51:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:51:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 11:51:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 11:51:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 11:51:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 11:51:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 11:51:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-26 11:51:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-26 11:51:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-26 11:51:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-26 11:51:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-26 11:51:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-26 11:51:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 11:51:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 11:51:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-26 11:51:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-26 11:51:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,845 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-26 11:51:36,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:36,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422810737] [2023-11-26 11:51:36,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422810737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:36,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:36,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:36,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881701650] [2023-11-26 11:51:36,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:36,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:51:36,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:36,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:51:36,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:51:36,908 INFO L87 Difference]: Start difference. First operand has 56 states, 35 states have (on average 1.4) internal successors, (49), 36 states have internal predecessors, (49), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-26 11:51:36,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:36,972 INFO L93 Difference]: Finished difference Result 109 states and 186 transitions. [2023-11-26 11:51:36,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:51:36,977 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 118 [2023-11-26 11:51:36,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:36,987 INFO L225 Difference]: With dead ends: 109 [2023-11-26 11:51:36,987 INFO L226 Difference]: Without dead ends: 54 [2023-11-26 11:51:36,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:51:36,997 INFO L413 NwaCegarLoop]: 77 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, 77 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:36,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:51:37,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-26 11:51:37,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-26 11:51:37,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 11:51:37,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 80 transitions. [2023-11-26 11:51:37,076 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 80 transitions. Word has length 118 [2023-11-26 11:51:37,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:37,077 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 80 transitions. [2023-11-26 11:51:37,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-26 11:51:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 80 transitions. [2023-11-26 11:51:37,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-26 11:51:37,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:37,086 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:37,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:51:37,086 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:37,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:37,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1527854172, now seen corresponding path program 1 times [2023-11-26 11:51:37,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:37,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855666937] [2023-11-26 11:51:37,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:37,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:37,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:37,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:37,705 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:51:37,707 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:51:37,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:51:37,713 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 11:51:37,717 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:51:37,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:51:37 BoogieIcfgContainer [2023-11-26 11:51:37,846 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:51:37,847 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:51:37,847 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:51:37,847 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:51:37,848 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:36" (3/4) ... [2023-11-26 11:51:37,851 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:51:37,852 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:51:37,854 INFO L158 Benchmark]: Toolchain (without parser) took 2831.47ms. Allocated memory is still 148.9MB. Free memory was 109.2MB in the beginning and 89.6MB in the end (delta: 19.6MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2023-11-26 11:51:37,854 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:37,857 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.14ms. Allocated memory is still 148.9MB. Free memory was 109.2MB in the beginning and 111.2MB in the end (delta: -2.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:51:37,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.20ms. Allocated memory is still 148.9MB. Free memory was 111.2MB in the beginning and 108.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:37,862 INFO L158 Benchmark]: Boogie Preprocessor took 55.36ms. Allocated memory is still 148.9MB. Free memory was 108.5MB in the beginning and 104.4MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:51:37,862 INFO L158 Benchmark]: RCFGBuilder took 687.54ms. Allocated memory is still 148.9MB. Free memory was 104.4MB in the beginning and 83.5MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-26 11:51:37,863 INFO L158 Benchmark]: TraceAbstraction took 1611.51ms. Allocated memory is still 148.9MB. Free memory was 82.7MB in the beginning and 89.6MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:37,863 INFO L158 Benchmark]: Witness Printer took 5.55ms. Allocated memory is still 148.9MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:37,870 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 386.14ms. Allocated memory is still 148.9MB. Free memory was 109.2MB in the beginning and 111.2MB in the end (delta: -2.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.20ms. Allocated memory is still 148.9MB. Free memory was 111.2MB in the beginning and 108.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.36ms. Allocated memory is still 148.9MB. Free memory was 108.5MB in the beginning and 104.4MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 687.54ms. Allocated memory is still 148.9MB. Free memory was 104.4MB in the beginning and 83.5MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1611.51ms. Allocated memory is still 148.9MB. Free memory was 82.7MB in the beginning and 89.6MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.55ms. Allocated memory is still 148.9MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 119, overapproximation of someBinaryFLOATComparisonOperation at line 119. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 0; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 32; [L25] signed long int var_1_4 = -32; [L26] signed long int var_1_5 = 2; [L27] signed short int var_1_6 = -10; [L28] unsigned long int var_1_7 = 1; [L29] unsigned char var_1_8 = 0; [L30] unsigned long int var_1_9 = 3470417420; [L31] unsigned char var_1_10 = 0; [L32] double var_1_11 = 32.875; [L33] double var_1_12 = 25.6; [L34] double var_1_13 = 1.75; [L35] float var_1_14 = 5.4; [L36] float var_1_15 = 127.5; [L37] float var_1_16 = 3.5; [L38] signed long int var_1_17 = 64; [L39] unsigned char var_1_18 = 64; [L123] isInitial = 1 [L124] FCALL initially() [L125] COND TRUE 1 [L126] FCALL updateLastVariables() [L127] CALL updateVariables() [L86] var_1_2 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_3=32, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_3=32, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L87] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_3=32, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L88] CALL assume_abort_if_not(var_1_2 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_3=32, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_3=32, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L88] RET assume_abort_if_not(var_1_2 <= 255) VAL [isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_3=32, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L89] var_1_3 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L90] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L91] CALL assume_abort_if_not(var_1_3 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L91] RET assume_abort_if_not(var_1_3 <= 255) VAL [isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-32, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L92] var_1_4 = __VERIFIER_nondet_long() [L93] CALL assume_abort_if_not(var_1_4 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L93] RET assume_abort_if_not(var_1_4 >= -1073741823) VAL [isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L94] CALL assume_abort_if_not(var_1_4 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L94] RET assume_abort_if_not(var_1_4 <= 1073741823) VAL [isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=3470417420] [L95] var_1_9 = __VERIFIER_nondet_ulong() [L96] CALL assume_abort_if_not(var_1_9 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L96] RET assume_abort_if_not(var_1_9 >= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L97] CALL assume_abort_if_not(var_1_9 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L97] RET assume_abort_if_not(var_1_9 <= 4294967295) VAL [isInitial=1, var_1_10=0, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L98] var_1_10 = __VERIFIER_nondet_uchar() [L99] CALL assume_abort_if_not(var_1_10 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L99] RET assume_abort_if_not(var_1_10 >= 1) VAL [isInitial=1, var_1_10=1, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L100] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L100] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=263/8, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L101] var_1_11 = __VERIFIER_nondet_double() [L102] CALL assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L102] RET assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_12=128/5, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L103] var_1_12 = __VERIFIER_nondet_double() [L104] CALL assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L104] RET assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L105] CALL assume_abort_if_not(var_1_12 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L105] RET assume_abort_if_not(var_1_12 != 0.0F) VAL [isInitial=1, var_1_10=1, var_1_13=7/4, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L106] var_1_13 = __VERIFIER_nondet_double() [L107] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L107] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_14=27/5, var_1_15=255/2, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L108] var_1_15 = __VERIFIER_nondet_float() [L109] CALL assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L109] RET assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_14=27/5, var_1_16=7/2, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L110] var_1_16 = __VERIFIER_nondet_float() [L111] CALL assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L111] RET assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_18=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L112] var_1_18 = __VERIFIER_nondet_uchar() [L113] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L113] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L114] CALL assume_abort_if_not(var_1_18 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L114] RET assume_abort_if_not(var_1_18 <= 255) VAL [isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=0, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L127] RET updateVariables() [L128] CALL step() [L43] COND TRUE var_1_2 > (- var_1_3) [L44] var_1_1 = ((((var_1_3) > ((var_1_2 + var_1_4))) ? (var_1_3) : ((var_1_2 + var_1_4)))) VAL [isInitial=1, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=43, var_1_3=33, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L48] unsigned char stepLocal_0 = var_1_2; VAL [isInitial=1, stepLocal_0=43, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=43, var_1_3=33, var_1_4=-10, var_1_5=2, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L49] COND TRUE var_1_3 < stepLocal_0 [L50] var_1_5 = ((var_1_2 - var_1_3) + var_1_4) VAL [isInitial=1, stepLocal_0=43, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=43, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L52] unsigned char stepLocal_1 = var_1_2; VAL [isInitial=1, stepLocal_0=43, stepLocal_1=43, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=43, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L53] COND FALSE !(stepLocal_1 < (- var_1_5)) VAL [isInitial=1, stepLocal_0=43, stepLocal_1=43, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=43, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L56] signed short int stepLocal_3 = var_1_6; [L57] signed long int stepLocal_2 = var_1_1; VAL [isInitial=1, stepLocal_0=43, stepLocal_1=43, stepLocal_2=33, stepLocal_3=-10, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=43, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L58] COND FALSE !(stepLocal_2 > var_1_3) VAL [isInitial=1, stepLocal_0=43, stepLocal_1=43, stepLocal_2=33, stepLocal_3=-10, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=43, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L63] unsigned long int stepLocal_4 = var_1_9 - var_1_2; VAL [isInitial=1, stepLocal_0=43, stepLocal_1=43, stepLocal_2=33, stepLocal_3=-10, stepLocal_4=4294967252, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=43, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L64] COND TRUE (- 8u) >= stepLocal_4 [L65] var_1_8 = (! var_1_10) VAL [isInitial=1, stepLocal_0=43, stepLocal_1=43, stepLocal_2=33, stepLocal_3=-10, stepLocal_4=4294967252, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=43, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L69] unsigned long int stepLocal_5 = var_1_9; VAL [isInitial=1, stepLocal_0=43, stepLocal_1=43, stepLocal_2=33, stepLocal_3=-10, stepLocal_4=4294967252, stepLocal_5=4294967295, var_1_10=1, var_1_14=27/5, var_1_17=64, var_1_1=33, var_1_2=43, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L70] COND FALSE !((var_1_12 * var_1_11) > var_1_13) [L77] var_1_14 = var_1_16 VAL [isInitial=1, stepLocal_0=43, stepLocal_1=43, stepLocal_2=33, stepLocal_3=-10, stepLocal_4=4294967252, stepLocal_5=4294967295, var_1_10=1, var_1_14=4294967300, var_1_16=4294967300, var_1_17=64, var_1_1=33, var_1_2=43, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L79] COND TRUE ((var_1_11 + var_1_14) / 9.2) < ((((var_1_13) < (var_1_16)) ? (var_1_13) : (var_1_16))) [L80] var_1_17 = ((((var_1_2) > (var_1_18)) ? (var_1_2) : (var_1_18))) VAL [isInitial=1, stepLocal_0=43, stepLocal_1=43, stepLocal_2=33, stepLocal_3=-10, stepLocal_4=4294967252, stepLocal_5=4294967295, var_1_10=1, var_1_14=4294967300, var_1_16=4294967300, var_1_17=43, var_1_18=4, var_1_1=33, var_1_2=43, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L128] RET step() [L129] CALL, EXPR property() [L119-L120] return (((((((var_1_2 > (- var_1_3)) ? (var_1_1 == ((signed long int) ((((var_1_3) > ((var_1_2 + var_1_4))) ? (var_1_3) : ((var_1_2 + var_1_4)))))) : (var_1_1 == ((signed long int) (((((1 - var_1_2)) < (16)) ? ((1 - var_1_2)) : (16)))))) && ((var_1_3 < var_1_2) ? (var_1_5 == ((signed long int) ((var_1_2 - var_1_3) + var_1_4))) : 1)) && ((var_1_2 < (- var_1_5)) ? (var_1_6 == ((signed short int) (32 - var_1_3))) : 1)) && ((var_1_1 > var_1_3) ? ((var_1_4 <= var_1_6) ? (var_1_7 == ((unsigned long int) ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))) : 1) : 1)) && (((- 8u) >= (var_1_9 - var_1_2)) ? (var_1_8 == ((unsigned char) (! var_1_10))) : (var_1_8 == ((unsigned char) (((var_1_11 / var_1_12) >= var_1_13) || var_1_10))))) && (((var_1_12 * var_1_11) > var_1_13) ? ((var_1_9 < var_1_5) ? (var_1_14 == ((float) var_1_15)) : (var_1_14 == ((float) var_1_15))) : (var_1_14 == ((float) var_1_16)))) && ((((var_1_11 + var_1_14) / 9.2) < ((((var_1_13) < (var_1_16)) ? (var_1_13) : (var_1_16)))) ? (var_1_17 == ((signed long int) ((((var_1_2) > (var_1_18)) ? (var_1_2) : (var_1_18))))) : (var_1_17 == ((signed long int) var_1_4))) ; [L129] RET, EXPR property() [L129] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1, var_1_14=4294967300, var_1_16=4294967300, var_1_17=43, var_1_18=4, var_1_1=33, var_1_2=43, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1, var_1_14=4294967300, var_1_16=4294967300, var_1_17=43, var_1_18=4, var_1_1=33, var_1_2=43, var_1_3=33, var_1_4=-10, var_1_5=0, var_1_6=-10, var_1_7=1, var_1_8=0, var_1_9=4294967295] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 77 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 117 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 612/612 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 11:51:37,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cdf93f59dd274ab086c68aef6e20ded5f344701c9de4a190c50002498c40f88d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:51:40,606 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:51:40,742 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 11:51:40,751 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:51:40,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:51:40,800 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:51:40,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:51:40,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:51:40,802 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:51:40,807 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:51:40,808 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:51:40,809 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:51:40,810 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:51:40,811 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:51:40,812 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:51:40,813 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:51:40,813 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:51:40,814 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:51:40,814 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:51:40,815 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:51:40,815 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:51:40,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:51:40,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:51:40,817 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:51:40,817 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:51:40,818 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:51:40,818 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:51:40,819 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:51:40,819 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:51:40,820 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:51:40,821 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:51:40,822 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:51:40,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:51:40,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:40,823 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:51:40,823 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:51:40,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:51:40,824 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:51:40,825 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:51:40,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:51:40,825 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:51:40,826 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:51:40,826 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:51:40,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:51:40,827 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:51:40,827 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_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdf93f59dd274ab086c68aef6e20ded5f344701c9de4a190c50002498c40f88d [2023-11-26 11:51:41,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:51:41,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:51:41,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:51:41,289 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:51:41,290 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:51:41,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i [2023-11-26 11:51:44,377 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:51:44,697 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:51:44,698 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i [2023-11-26 11:51:44,708 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/data/aa7cadf75/4437e963c65f4219bf0e216251a17bac/FLAG7110f57e2 [2023-11-26 11:51:44,723 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/data/aa7cadf75/4437e963c65f4219bf0e216251a17bac [2023-11-26 11:51:44,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:51:44,727 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:51:44,729 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:44,729 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:51:44,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:51:44,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:44" (1/1) ... [2023-11-26 11:51:44,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b1d2df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:44, skipping insertion in model container [2023-11-26 11:51:44,737 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:44" (1/1) ... [2023-11-26 11:51:44,770 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:51:44,928 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_055a50a6-1573-47f9-bc54-bfca8af9047b/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i[916,929] [2023-11-26 11:51:44,995 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:45,012 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:51:45,026 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_055a50a6-1573-47f9-bc54-bfca8af9047b/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-0.i[916,929] [2023-11-26 11:51:45,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:45,079 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:51:45,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:45 WrapperNode [2023-11-26 11:51:45,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:45,081 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:45,081 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:51:45,082 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:51:45,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:45" (1/1) ... [2023-11-26 11:51:45,103 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:45" (1/1) ... [2023-11-26 11:51:45,135 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 130 [2023-11-26 11:51:45,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:45,136 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:51:45,136 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:51:45,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:51:45,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:45" (1/1) ... [2023-11-26 11:51:45,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:45" (1/1) ... [2023-11-26 11:51:45,156 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:45" (1/1) ... [2023-11-26 11:51:45,174 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:51:45,185 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:45" (1/1) ... [2023-11-26 11:51:45,186 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:45" (1/1) ... [2023-11-26 11:51:45,198 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:45" (1/1) ... [2023-11-26 11:51:45,213 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:45" (1/1) ... [2023-11-26 11:51:45,223 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:45" (1/1) ... [2023-11-26 11:51:45,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:45" (1/1) ... [2023-11-26 11:51:45,251 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:51:45,252 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:51:45,252 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:51:45,252 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:51:45,253 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:45" (1/1) ... [2023-11-26 11:51:45,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:45,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:45,323 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:45,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:51:45,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:51:45,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:51:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:51:45,372 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:51:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:51:45,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:51:45,466 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:51:45,468 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:52:06,653 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:52:06,706 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:52:06,707 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:52:06,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:52:06 BoogieIcfgContainer [2023-11-26 11:52:06,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:52:06,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:52:06,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:52:06,714 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:52:06,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:51:44" (1/3) ... [2023-11-26 11:52:06,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1156b20e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:52:06, skipping insertion in model container [2023-11-26 11:52:06,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:45" (2/3) ... [2023-11-26 11:52:06,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1156b20e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:52:06, skipping insertion in model container [2023-11-26 11:52:06,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:52:06" (3/3) ... [2023-11-26 11:52:06,718 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-0.i [2023-11-26 11:52:06,737 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:52:06,738 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:52:06,807 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:52:06,817 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;@200a0f34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:52:06,817 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:52:06,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 35 states have (on average 1.4) internal successors, (49), 36 states have internal predecessors, (49), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 11:52:06,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-26 11:52:06,835 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:06,836 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:06,836 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:06,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:06,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1555128480, now seen corresponding path program 1 times [2023-11-26 11:52:06,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:52:06,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163852402] [2023-11-26 11:52:06,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:06,878 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:52:06,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:52:06,884 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:52:06,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 11:52:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:09,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:52:09,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:09,233 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-26 11:52:09,233 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:52:09,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:52:09,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163852402] [2023-11-26 11:52:09,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163852402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:09,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:09,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:52:09,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138120967] [2023-11-26 11:52:09,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:09,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:52:09,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:52:09,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:52:09,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:52:09,280 INFO L87 Difference]: Start difference. First operand has 56 states, 35 states have (on average 1.4) internal successors, (49), 36 states have internal predecessors, (49), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-26 11:52:15,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 11:52:15,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:15,422 INFO L93 Difference]: Finished difference Result 109 states and 186 transitions. [2023-11-26 11:52:15,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:52:15,986 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 118 [2023-11-26 11:52:15,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:15,995 INFO L225 Difference]: With dead ends: 109 [2023-11-26 11:52:15,996 INFO L226 Difference]: Without dead ends: 54 [2023-11-26 11:52:16,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:52:16,005 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:16,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2023-11-26 11:52:16,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-26 11:52:16,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-26 11:52:16,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 11:52:16,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 80 transitions. [2023-11-26 11:52:16,059 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 80 transitions. Word has length 118 [2023-11-26 11:52:16,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:16,060 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 80 transitions. [2023-11-26 11:52:16,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-26 11:52:16,060 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 80 transitions. [2023-11-26 11:52:16,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-26 11:52:16,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:16,065 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:16,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-26 11:52:16,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:52:16,280 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:16,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:16,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1527854172, now seen corresponding path program 1 times [2023-11-26 11:52:16,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:52:16,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932014971] [2023-11-26 11:52:16,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:16,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:52:16,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:52:16,285 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:52:16,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_055a50a6-1573-47f9-bc54-bfca8af9047b/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-26 11:52:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:18,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-26 11:52:18,778 INFO L285 TraceCheckSpWp]: Computing forward predicates...