./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-70.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx --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 67ddbc9a1e4c4f55e4cae1326222f0933404d1b62e1d4337e8d831f0f94214e4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:08:40,969 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:08:41,084 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:08:41,090 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:08:41,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:08:41,140 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:08:41,141 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:08:41,142 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:08:41,143 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:08:41,149 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:08:41,150 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:08:41,151 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:08:41,152 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:08:41,154 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:08:41,155 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:08:41,155 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:08:41,156 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:08:41,156 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:08:41,157 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:08:41,157 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:08:41,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:08:41,158 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:08:41,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:08:41,159 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:08:41,160 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:08:41,160 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:08:41,161 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:08:41,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:08:41,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:08:41,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:08:41,164 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:08:41,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:08:41,165 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:08:41,165 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:08:41,165 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:08:41,165 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:08:41,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:08:41,166 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:08:41,166 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:08:41,166 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:08:41,167 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:08:41,167 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:08:41,167 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_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67ddbc9a1e4c4f55e4cae1326222f0933404d1b62e1d4337e8d831f0f94214e4 [2023-11-21 22:08:41,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:08:41,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:08:41,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:08:41,589 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:08:41,590 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:08:41,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-70.i [2023-11-21 22:08:44,669 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:08:44,888 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:08:44,889 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-70.i [2023-11-21 22:08:44,899 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/data/358c0ef6a/aaf435be06ac4ce3ad7d1ca768ae55d2/FLAG063efb54c [2023-11-21 22:08:44,917 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/data/358c0ef6a/aaf435be06ac4ce3ad7d1ca768ae55d2 [2023-11-21 22:08:44,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:08:44,922 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:08:44,923 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:08:44,924 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:08:44,930 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:08:44,931 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:08:44" (1/1) ... [2023-11-21 22:08:44,933 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@599458e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:44, skipping insertion in model container [2023-11-21 22:08:44,933 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:08:44" (1/1) ... [2023-11-21 22:08:44,970 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:08:45,169 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_644b1d47-5cce-441a-94e0-0fa9c0af5a84/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-70.i[915,928] [2023-11-21 22:08:45,219 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:08:45,232 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:08:45,243 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_644b1d47-5cce-441a-94e0-0fa9c0af5a84/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-70.i[915,928] [2023-11-21 22:08:45,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:08:45,286 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:08:45,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:45 WrapperNode [2023-11-21 22:08:45,286 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:08:45,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:08:45,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:08:45,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:08:45,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:45" (1/1) ... [2023-11-21 22:08:45,306 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:45" (1/1) ... [2023-11-21 22:08:45,349 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2023-11-21 22:08:45,350 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:08:45,350 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:08:45,351 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:08:45,351 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:08:45,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:45" (1/1) ... [2023-11-21 22:08:45,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:45" (1/1) ... [2023-11-21 22:08:45,366 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:45" (1/1) ... [2023-11-21 22:08:45,380 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:08:45,380 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:45" (1/1) ... [2023-11-21 22:08:45,380 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:45" (1/1) ... [2023-11-21 22:08:45,390 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:45" (1/1) ... [2023-11-21 22:08:45,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:45" (1/1) ... [2023-11-21 22:08:45,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:45" (1/1) ... [2023-11-21 22:08:45,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:45" (1/1) ... [2023-11-21 22:08:45,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:08:45,414 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:08:45,414 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:08:45,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:08:45,421 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:45" (1/1) ... [2023-11-21 22:08:45,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:08:45,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:45,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:08:45,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:08:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:08:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:08:45,510 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:08:45,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:08:45,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:08:45,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:08:45,633 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:08:45,636 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:08:46,047 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:08:46,387 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:08:46,387 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:08:46,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:46 BoogieIcfgContainer [2023-11-21 22:08:46,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:08:46,392 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:08:46,392 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:08:46,396 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:08:46,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:08:44" (1/3) ... [2023-11-21 22:08:46,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554581fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:46, skipping insertion in model container [2023-11-21 22:08:46,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:45" (2/3) ... [2023-11-21 22:08:46,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554581fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:46, skipping insertion in model container [2023-11-21 22:08:46,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:46" (3/3) ... [2023-11-21 22:08:46,402 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-70.i [2023-11-21 22:08:46,421 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:08:46,421 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:08:46,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:08:46,490 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;@366149c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:08:46,491 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:08:46,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-21 22:08:46,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-21 22:08:46,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:46,510 INFO L195 NwaCegarLoop]: trace histogram [13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:46,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:08:46,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:46,516 INFO L85 PathProgramCache]: Analyzing trace with hash 175145249, now seen corresponding path program 1 times [2023-11-21 22:08:46,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:46,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060962709] [2023-11-21 22:08:46,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:46,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:08:47,063 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:08:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:08:47,209 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:08:47,212 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:08:47,213 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:08:47,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:08:47,222 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:08:47,227 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:08:47,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:08:47 BoogieIcfgContainer [2023-11-21 22:08:47,308 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:08:47,309 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:08:47,309 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:08:47,309 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:08:47,310 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:46" (3/4) ... [2023-11-21 22:08:47,312 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:08:47,313 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:08:47,314 INFO L158 Benchmark]: Toolchain (without parser) took 2392.45ms. Allocated memory was 119.5MB in the beginning and 159.4MB in the end (delta: 39.8MB). Free memory was 83.4MB in the beginning and 130.0MB in the end (delta: -46.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:08:47,315 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 119.5MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:08:47,316 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.44ms. Allocated memory is still 119.5MB. Free memory was 83.0MB in the beginning and 70.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:08:47,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.08ms. Allocated memory is still 119.5MB. Free memory was 70.4MB in the beginning and 67.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:08:47,318 INFO L158 Benchmark]: Boogie Preprocessor took 62.94ms. Allocated memory is still 119.5MB. Free memory was 67.3MB in the beginning and 63.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:08:47,322 INFO L158 Benchmark]: RCFGBuilder took 974.71ms. Allocated memory was 119.5MB in the beginning and 159.4MB in the end (delta: 39.8MB). Free memory was 63.8MB in the beginning and 111.0MB in the end (delta: -47.2MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2023-11-21 22:08:47,322 INFO L158 Benchmark]: TraceAbstraction took 916.21ms. Allocated memory is still 159.4MB. Free memory was 109.7MB in the beginning and 130.0MB in the end (delta: -20.2MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2023-11-21 22:08:47,323 INFO L158 Benchmark]: Witness Printer took 4.36ms. Allocated memory is still 159.4MB. Free memory is still 130.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:08:47,326 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 119.5MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.44ms. Allocated memory is still 119.5MB. Free memory was 83.0MB in the beginning and 70.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.08ms. Allocated memory is still 119.5MB. Free memory was 70.4MB in the beginning and 67.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.94ms. Allocated memory is still 119.5MB. Free memory was 67.3MB in the beginning and 63.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 974.71ms. Allocated memory was 119.5MB in the beginning and 159.4MB in the end (delta: 39.8MB). Free memory was 63.8MB in the beginning and 111.0MB in the end (delta: -47.2MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * TraceAbstraction took 916.21ms. Allocated memory is still 159.4MB. Free memory was 109.7MB in the beginning and 130.0MB in the end (delta: -20.2MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Witness Printer took 4.36ms. Allocated memory is still 159.4MB. Free memory is still 130.0MB. 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 77, overapproximation of shiftLeft at line 40. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 0; [L23] unsigned char var_1_2 = 0; [L24] unsigned short int var_1_3 = 1; [L25] unsigned short int var_1_4 = 19138; [L26] unsigned short int var_1_5 = 0; [L27] signed char var_1_6 = 25; [L28] signed long int var_1_7 = -50; [L29] double var_1_8 = 8.3; [L30] unsigned char var_1_9 = 128; [L31] unsigned char var_1_10 = 1; [L32] double var_1_11 = 256.2; [L81] isInitial = 1 [L82] FCALL initially() [L83] int k_loop; [L84] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=0, var_1_3=1, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L84] COND TRUE k_loop < 1 [L85] FCALL updateLastVariables() [L86] CALL updateVariables() [L53] var_1_2 = __VERIFIER_nondet_uchar() [L54] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_3=1, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L20] COND FALSE !(!cond) [L54] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_3=1, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L55] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=1, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L20] COND FALSE !(!cond) [L55] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=1, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L56] var_1_3 = __VERIFIER_nondet_ushort() [L57] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L20] COND FALSE !(!cond) [L57] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L58] CALL assume_abort_if_not(var_1_3 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L20] COND FALSE !(!cond) [L58] RET assume_abort_if_not(var_1_3 <= 16383) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L59] var_1_4 = __VERIFIER_nondet_ushort() [L60] CALL assume_abort_if_not(var_1_4 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L20] COND FALSE !(!cond) [L60] RET assume_abort_if_not(var_1_4 >= 16383) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L61] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L62] var_1_5 = __VERIFIER_nondet_ushort() [L63] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=16381, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=16381, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L64] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=16381, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=16381, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L65] var_1_9 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_9 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=16381, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=127] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_9 >= 127) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=16381, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=127] [L67] CALL assume_abort_if_not(var_1_9 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=16381, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=127] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_9 <= 255) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=16381, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=127] [L68] var_1_10 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=16381, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=127] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=5, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=16381, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=127] [L70] CALL assume_abort_if_not(var_1_10 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=16381, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=127] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_10 <= 127) VAL [isInitial=1, var_1_10=5, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=16381, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=127] [L71] var_1_11 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=83/10, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=16381, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=127] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=5, var_1_11=83/10, var_1_1=0, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=16381, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=127] [L86] RET updateVariables() [L87] CALL step() [L36] COND TRUE \read(var_1_2) [L37] var_1_1 = ((17222 - var_1_3) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_5)) [L39] unsigned short int stepLocal_0 = var_1_4; [L40] EXPR var_1_5 << var_1_1 [L40] EXPR ((var_1_3) > ((var_1_5 << var_1_1))) ? (var_1_3) : ((var_1_5 << var_1_1)) [L40] EXPR var_1_5 << var_1_1 [L40] EXPR ((var_1_3) > ((var_1_5 << var_1_1))) ? (var_1_3) : ((var_1_5 << var_1_1)) [L40] COND TRUE stepLocal_0 <= ((((var_1_3) > ((var_1_5 << var_1_1))) ? (var_1_3) : ((var_1_5 << var_1_1)))) [L41] var_1_7 = (((((var_1_5 - var_1_3)) < (var_1_4)) ? ((var_1_5 - var_1_3)) : (var_1_4))) [L45] COND FALSE !((var_1_9 - ((((5) > (var_1_10)) ? (5) : (var_1_10)))) >= var_1_3) [L48] COND TRUE var_1_2 && (var_1_4 >= (var_1_3 + var_1_7)) [L49] var_1_6 = 8 [L87] RET step() [L88] CALL, EXPR property() [L77] EXPR ((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_3) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_5)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_3 + var_1_7))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_3) > ((var_1_5 << var_1_1))) ? (var_1_3) : ((var_1_5 << var_1_1))))) ? (var_1_7 == ((signed long int) (((((var_1_5 - var_1_3)) < (var_1_4)) ? ((var_1_5 - var_1_3)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_5 + (var_1_1 + var_1_4))))) [L77] EXPR var_1_5 << var_1_1 [L77] EXPR ((var_1_3) > ((var_1_5 << var_1_1))) ? (var_1_3) : ((var_1_5 << var_1_1)) [L77] EXPR ((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_3) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_5)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_3 + var_1_7))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_3) > ((var_1_5 << var_1_1))) ? (var_1_3) : ((var_1_5 << var_1_1))))) ? (var_1_7 == ((signed long int) (((((var_1_5 - var_1_3)) < (var_1_4)) ? ((var_1_5 - var_1_3)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_5 + (var_1_1 + var_1_4))))) [L77-L78] return (((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_3) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_5)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_3 + var_1_7))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_3) > ((var_1_5 << var_1_1))) ? (var_1_3) : ((var_1_5 << var_1_1))))) ? (var_1_7 == ((signed long int) (((((var_1_5 - var_1_3)) < (var_1_4)) ? ((var_1_5 - var_1_3)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_5 + (var_1_1 + var_1_4)))))) && (((var_1_9 - ((((5) > (var_1_10)) ? (5) : (var_1_10)))) >= var_1_3) ? (var_1_8 == ((double) var_1_11)) : 1) ; [L88] RET, EXPR property() [L88] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=5, var_1_11=83/10, var_1_1=14374, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=16381, var_1_6=8, var_1_7=-2, var_1_8=83/10, var_1_9=127] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=5, var_1_11=83/10, var_1_1=14374, var_1_2=1, var_1_3=16383, var_1_4=29917, var_1_5=16381, var_1_6=8, var_1_7=-2, var_1_8=83/10, var_1_9=127] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 [2023-11-21 22:08:47,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx --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 67ddbc9a1e4c4f55e4cae1326222f0933404d1b62e1d4337e8d831f0f94214e4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:08:50,277 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:08:50,384 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:08:50,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:08:50,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:08:50,422 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:08:50,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:08:50,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:08:50,425 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:08:50,425 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:08:50,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:08:50,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:08:50,428 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:08:50,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:08:50,429 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:08:50,429 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:08:50,430 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:08:50,431 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:08:50,431 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:08:50,432 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:08:50,432 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:08:50,433 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:08:50,433 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:08:50,434 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:08:50,434 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:08:50,435 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:08:50,435 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:08:50,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:08:50,436 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:08:50,437 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:08:50,437 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:08:50,438 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:08:50,438 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:08:50,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:08:50,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:08:50,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:08:50,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:08:50,441 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:08:50,441 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:08:50,441 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:08:50,442 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:08:50,442 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:08:50,443 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:08:50,443 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:08:50,444 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:08:50,444 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_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67ddbc9a1e4c4f55e4cae1326222f0933404d1b62e1d4337e8d831f0f94214e4 [2023-11-21 22:08:50,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:08:50,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:08:50,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:08:50,942 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:08:50,943 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:08:50,945 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-70.i [2023-11-21 22:08:54,211 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:08:54,609 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:08:54,609 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-70.i [2023-11-21 22:08:54,620 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/data/2898b23a5/d659e536529b46f893a0335b6d84e326/FLAG9a95fb4e4 [2023-11-21 22:08:54,638 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/data/2898b23a5/d659e536529b46f893a0335b6d84e326 [2023-11-21 22:08:54,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:08:54,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:08:54,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:08:54,645 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:08:54,651 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:08:54,652 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:08:54" (1/1) ... [2023-11-21 22:08:54,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e8b5992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:54, skipping insertion in model container [2023-11-21 22:08:54,653 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:08:54" (1/1) ... [2023-11-21 22:08:54,684 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:08:54,937 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-70.i[915,928] [2023-11-21 22:08:55,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:08:55,052 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:08:55,076 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_644b1d47-5cce-441a-94e0-0fa9c0af5a84/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-70.i[915,928] [2023-11-21 22:08:55,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:08:55,140 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:08:55,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:55 WrapperNode [2023-11-21 22:08:55,141 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:08:55,143 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:08:55,143 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:08:55,144 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:08:55,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:55" (1/1) ... [2023-11-21 22:08:55,181 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:55" (1/1) ... [2023-11-21 22:08:55,227 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2023-11-21 22:08:55,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:08:55,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:08:55,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:08:55,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:08:55,246 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:55" (1/1) ... [2023-11-21 22:08:55,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:55" (1/1) ... [2023-11-21 22:08:55,260 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:55" (1/1) ... [2023-11-21 22:08:55,287 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:08:55,287 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:55" (1/1) ... [2023-11-21 22:08:55,288 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:55" (1/1) ... [2023-11-21 22:08:55,297 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:55" (1/1) ... [2023-11-21 22:08:55,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:55" (1/1) ... [2023-11-21 22:08:55,303 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:55" (1/1) ... [2023-11-21 22:08:55,305 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:55" (1/1) ... [2023-11-21 22:08:55,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:08:55,310 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:08:55,310 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:08:55,311 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:08:55,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:55" (1/1) ... [2023-11-21 22:08:55,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:08:55,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:55,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:08:55,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:08:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:08:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:08:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:08:55,510 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:08:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:08:55,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:08:55,659 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:08:55,661 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:08:56,054 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:08:56,189 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:08:56,189 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:08:56,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:56 BoogieIcfgContainer [2023-11-21 22:08:56,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:08:56,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:08:56,194 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:08:56,198 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:08:56,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:08:54" (1/3) ... [2023-11-21 22:08:56,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387ba082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:56, skipping insertion in model container [2023-11-21 22:08:56,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:55" (2/3) ... [2023-11-21 22:08:56,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387ba082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:56, skipping insertion in model container [2023-11-21 22:08:56,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:56" (3/3) ... [2023-11-21 22:08:56,202 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-70.i [2023-11-21 22:08:56,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:08:56,223 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:08:56,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:08:56,300 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;@2debb052, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:08:56,300 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:08:56,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-21 22:08:56,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-21 22:08:56,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:56,318 INFO L195 NwaCegarLoop]: trace histogram [13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:56,319 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:08:56,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:56,325 INFO L85 PathProgramCache]: Analyzing trace with hash 352660238, now seen corresponding path program 1 times [2023-11-21 22:08:56,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:08:56,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660047148] [2023-11-21 22:08:56,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:56,343 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 [2023-11-21 22:08:56,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:08:56,351 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:08:56,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_644b1d47-5cce-441a-94e0-0fa9c0af5a84/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:08:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:56,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-21 22:08:56,590 INFO L285 TraceCheckSpWp]: Computing forward predicates...