./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-77.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-77.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu --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 80d0dbd642f174f1d467e22c7cd881540a5b30cdbb6826a74a2a8a7b559c2f1a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:05:06,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:05:06,808 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 08:05:06,813 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:05:06,814 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:05:06,865 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:05:06,866 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:05:06,867 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:05:06,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:05:06,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:05:06,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:05:06,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:05:06,870 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:05:06,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:05:06,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:05:06,872 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:05:06,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:05:06,879 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:05:06,880 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:05:06,880 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:05:06,884 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:05:06,885 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:05:06,885 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:05:06,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:05:06,887 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:05:06,888 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:05:06,889 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:05:06,889 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:05:06,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:06,890 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:05:06,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:05:06,892 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:05:06,892 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:05:06,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:05:06,892 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:05:06,893 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:05:06,893 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:05:06,893 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:05:06,893 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:05:06,893 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_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80d0dbd642f174f1d467e22c7cd881540a5b30cdbb6826a74a2a8a7b559c2f1a [2023-11-19 08:05:07,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:05:07,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:05:07,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:05:07,169 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:05:07,169 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:05:07,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-77.i [2023-11-19 08:05:10,428 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:05:10,791 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:05:10,793 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-77.i [2023-11-19 08:05:10,806 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/data/5174a28cb/63cd663be62a4792bd6bb8daf5f79d07/FLAG736701470 [2023-11-19 08:05:10,824 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/data/5174a28cb/63cd663be62a4792bd6bb8daf5f79d07 [2023-11-19 08:05:10,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:05:10,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:05:10,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:10,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:05:10,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:05:10,838 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:10" (1/1) ... [2023-11-19 08:05:10,839 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c443d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:10, skipping insertion in model container [2023-11-19 08:05:10,840 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:10" (1/1) ... [2023-11-19 08:05:10,895 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:05:11,062 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_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-77.i[915,928] [2023-11-19 08:05:11,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:11,138 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:05:11,155 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_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-77.i[915,928] [2023-11-19 08:05:11,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:11,212 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:05:11,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:11 WrapperNode [2023-11-19 08:05:11,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:11,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:11,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:05:11,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:05:11,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:11" (1/1) ... [2023-11-19 08:05:11,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:11" (1/1) ... [2023-11-19 08:05:11,290 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 108 [2023-11-19 08:05:11,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:11,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:05:11,291 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:05:11,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:05:11,303 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:11" (1/1) ... [2023-11-19 08:05:11,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:11" (1/1) ... [2023-11-19 08:05:11,306 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:11" (1/1) ... [2023-11-19 08:05:11,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:11" (1/1) ... [2023-11-19 08:05:11,317 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:11" (1/1) ... [2023-11-19 08:05:11,320 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:11" (1/1) ... [2023-11-19 08:05:11,323 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:11" (1/1) ... [2023-11-19 08:05:11,325 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:11" (1/1) ... [2023-11-19 08:05:11,329 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:05:11,330 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:05:11,330 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:05:11,330 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:05:11,331 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:11" (1/1) ... [2023-11-19 08:05:11,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:11,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:11,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:05:11,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:05:11,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:05:11,441 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:05:11,442 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:05:11,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:05:11,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:05:11,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:05:11,573 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:05:11,576 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:05:11,901 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:05:11,910 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:05:11,910 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:05:11,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:11 BoogieIcfgContainer [2023-11-19 08:05:11,915 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:05:11,918 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:05:11,919 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:05:11,922 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:05:11,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:05:10" (1/3) ... [2023-11-19 08:05:11,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6227a43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:11, skipping insertion in model container [2023-11-19 08:05:11,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:11" (2/3) ... [2023-11-19 08:05:11,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6227a43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:11, skipping insertion in model container [2023-11-19 08:05:11,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:11" (3/3) ... [2023-11-19 08:05:11,925 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-77.i [2023-11-19 08:05:11,942 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:05:11,942 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:05:11,990 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:05:11,997 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;@3075533f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:05:11,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:05:12,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 08:05:12,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-19 08:05:12,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:12,016 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:12,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:12,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:12,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1832740109, now seen corresponding path program 1 times [2023-11-19 08:05:12,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:12,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290862788] [2023-11-19 08:05:12,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:12,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 08:05:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 08:05:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:05:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 08:05:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 08:05:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 08:05:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 08:05:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 08:05:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 08:05:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 08:05:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 08:05:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 08:05:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-19 08:05:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-19 08:05:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-19 08:05:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:12,558 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-19 08:05:12,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:12,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290862788] [2023-11-19 08:05:12,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290862788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:12,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:12,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:05:12,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737392287] [2023-11-19 08:05:12,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:12,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:05:12,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:12,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:05:12,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:05:12,630 INFO L87 Difference]: Start difference. First operand has 50 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 08:05:12,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:12,677 INFO L93 Difference]: Finished difference Result 97 states and 154 transitions. [2023-11-19 08:05:12,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:05:12,679 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2023-11-19 08:05:12,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:12,690 INFO L225 Difference]: With dead ends: 97 [2023-11-19 08:05:12,690 INFO L226 Difference]: Without dead ends: 46 [2023-11-19 08:05:12,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:05:12,702 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:12,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:12,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-19 08:05:12,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-19 08:05:12,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 08:05:12,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 64 transitions. [2023-11-19 08:05:12,767 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 64 transitions. Word has length 98 [2023-11-19 08:05:12,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:12,769 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 64 transitions. [2023-11-19 08:05:12,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 08:05:12,770 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2023-11-19 08:05:12,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-19 08:05:12,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:12,777 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:12,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:05:12,779 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:12,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:12,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1678042361, now seen corresponding path program 1 times [2023-11-19 08:05:12,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:12,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335525194] [2023-11-19 08:05:12,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:12,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:05:13,029 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:05:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:05:13,244 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:05:13,244 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:05:13,246 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 08:05:13,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:05:13,252 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 08:05:13,282 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:05:13,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:05:13 BoogieIcfgContainer [2023-11-19 08:05:13,390 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:05:13,391 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:05:13,391 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:05:13,391 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:05:13,392 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:11" (3/4) ... [2023-11-19 08:05:13,394 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 08:05:13,396 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:05:13,397 INFO L158 Benchmark]: Toolchain (without parser) took 2567.78ms. Allocated memory is still 165.7MB. Free memory was 134.4MB in the beginning and 127.9MB in the end (delta: 6.5MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2023-11-19 08:05:13,398 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 165.7MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:05:13,399 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.83ms. Allocated memory is still 165.7MB. Free memory was 134.4MB in the beginning and 121.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 08:05:13,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.96ms. Allocated memory is still 165.7MB. Free memory was 121.8MB in the beginning and 119.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:05:13,400 INFO L158 Benchmark]: Boogie Preprocessor took 38.00ms. Allocated memory is still 165.7MB. Free memory was 119.1MB in the beginning and 117.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:05:13,401 INFO L158 Benchmark]: RCFGBuilder took 585.43ms. Allocated memory is still 165.7MB. Free memory was 117.0MB in the beginning and 100.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 08:05:13,402 INFO L158 Benchmark]: TraceAbstraction took 1471.49ms. Allocated memory is still 165.7MB. Free memory was 99.7MB in the beginning and 127.9MB in the end (delta: -28.2MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2023-11-19 08:05:13,403 INFO L158 Benchmark]: Witness Printer took 5.52ms. Allocated memory is still 165.7MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:05:13,406 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 165.7MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 382.83ms. Allocated memory is still 165.7MB. Free memory was 134.4MB in the beginning and 121.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.96ms. Allocated memory is still 165.7MB. Free memory was 121.8MB in the beginning and 119.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.00ms. Allocated memory is still 165.7MB. Free memory was 119.1MB in the beginning and 117.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 585.43ms. Allocated memory is still 165.7MB. Free memory was 117.0MB in the beginning and 100.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1471.49ms. Allocated memory is still 165.7MB. Free memory was 99.7MB in the beginning and 127.9MB in the end (delta: -28.2MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. * Witness Printer took 5.52ms. Allocated memory is still 165.7MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 88, overapproximation of someUnaryFLOAToperation at line 40. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 50; [L23] unsigned short int var_1_4 = 60871; [L24] unsigned short int var_1_5 = 1; [L25] unsigned short int var_1_6 = 28896; [L26] unsigned short int var_1_7 = 5; [L27] float var_1_8 = 63.8; [L28] float var_1_9 = 49.5; [L29] float var_1_10 = 31.875; [L30] float var_1_11 = 255.25; [L31] unsigned short int var_1_12 = 0; [L32] unsigned char var_1_13 = 0; [L33] unsigned char var_1_14 = 1; [L34] float var_1_16 = 0.8; [L35] unsigned short int var_1_17 = 64; VAL [isInitial=0, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=60871, var_1_5=1, var_1_6=28896, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L92] isInitial = 1 [L93] FCALL initially() [L94] int k_loop; [L95] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=60871, var_1_5=1, var_1_6=28896, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L95] COND TRUE k_loop < 1 [L96] FCALL updateLastVariables() [L97] CALL updateVariables() [L60] var_1_4 = __VERIFIER_nondet_ushort() [L61] CALL assume_abort_if_not(var_1_4 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=1, var_1_6=28896, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=1, var_1_6=28896, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L61] RET assume_abort_if_not(var_1_4 >= 32767) VAL [isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=1, var_1_6=28896, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L62] CALL assume_abort_if_not(var_1_4 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=1, var_1_6=28896, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=1, var_1_6=28896, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L62] RET assume_abort_if_not(var_1_4 <= 65534) VAL [isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=1, var_1_6=28896, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L63] var_1_5 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=28896, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=28896, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L64] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=28896, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L65] CALL assume_abort_if_not(var_1_5 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=28896, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=28896, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L65] RET assume_abort_if_not(var_1_5 <= 32767) VAL [isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=28896, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L66] var_1_6 = __VERIFIER_nondet_ushort() [L67] CALL assume_abort_if_not(var_1_6 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L67] RET assume_abort_if_not(var_1_6 >= 16383) VAL [isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L68] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L68] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=5, var_1_8=319/5, var_1_9=99/2] [L69] var_1_7 = __VERIFIER_nondet_ushort() [L70] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=99/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=99/2] [L70] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=99/2] [L71] CALL assume_abort_if_not(var_1_7 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=99/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=99/2] [L71] RET assume_abort_if_not(var_1_7 <= 16383) VAL [isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=99/2] [L72] var_1_9 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L73] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=255/8, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L74] var_1_10 = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=81926, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=81926, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L75] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=81926, var_1_11=1021/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L76] var_1_11 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_11 >= 0.0F && 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=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L77] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L78] var_1_13 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L79] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L80] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L80] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L81] var_1_14 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L82] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L83] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L83] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=319/5, var_1_9=81925] [L97] RET updateVariables() [L98] CALL step() [L39] COND TRUE var_1_7 > var_1_5 [L40] var_1_8 = ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))) VAL [isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=4/5, var_1_17=64, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=81925, var_1_9=81925] [L44] var_1_16 = var_1_11 [L45] var_1_17 = var_1_5 VAL [isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=81924, var_1_17=8190, var_1_1=50, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=81925, var_1_9=81925] [L46] COND TRUE var_1_8 != var_1_16 [L47] var_1_1 = (var_1_4 - ((((var_1_5) < ((var_1_6 - var_1_7))) ? (var_1_5) : ((var_1_6 - var_1_7))))) VAL [isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=81924, var_1_17=8190, var_1_1=24577, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=81925, var_1_9=81925] [L49] unsigned char stepLocal_1 = var_1_13; [L50] signed long int stepLocal_0 = (((var_1_5) < (var_1_6)) ? (var_1_5) : (var_1_6)); VAL [isInitial=1, stepLocal_0=8190, stepLocal_1=0, var_1_10=81926, var_1_11=81924, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=81924, var_1_17=8190, var_1_1=24577, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=81925, var_1_9=81925] [L51] COND FALSE !(stepLocal_1 && var_1_14) [L56] var_1_12 = 64 VAL [isInitial=1, stepLocal_0=8190, stepLocal_1=0, var_1_10=81926, var_1_11=81924, var_1_12=64, var_1_13=0, var_1_14=1, var_1_16=81924, var_1_17=8190, var_1_1=24577, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=81925, var_1_9=81925] [L98] RET step() [L99] CALL, EXPR property() [L88-L89] return (((((var_1_8 != var_1_16) ? (var_1_1 == ((unsigned short int) (var_1_4 - ((((var_1_5) < ((var_1_6 - var_1_7))) ? (var_1_5) : ((var_1_6 - var_1_7))))))) : 1) && ((var_1_7 > var_1_5) ? (var_1_8 == ((float) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))))) : (var_1_8 == ((float) (((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11))) - 1.6f))))) && ((var_1_13 && var_1_14) ? ((((((var_1_5) < (var_1_6)) ? (var_1_5) : (var_1_6))) < ((((32) > ((var_1_1 - var_1_7))) ? (32) : ((var_1_1 - var_1_7))))) ? (var_1_12 == ((unsigned short int) (var_1_7 + 5))) : 1) : (var_1_12 == ((unsigned short int) 64)))) && (var_1_16 == ((float) var_1_11))) && (var_1_17 == ((unsigned short int) var_1_5)) ; VAL [\result=0, isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=64, var_1_13=0, var_1_14=1, var_1_16=81924, var_1_17=8190, var_1_1=24577, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=81925, var_1_9=81925] [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=64, var_1_13=0, var_1_14=1, var_1_16=81924, var_1_17=8190, var_1_1=24577, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=81925, var_1_9=81925] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=81926, var_1_11=81924, var_1_12=64, var_1_13=0, var_1_14=1, var_1_16=81924, var_1_17=8190, var_1_1=24577, var_1_4=32767, var_1_5=8190, var_1_6=16383, var_1_7=8193, var_1_8=81925, var_1_9=81925] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 15, 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, 68 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 68 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 196 NumberOfCodeBlocks, 196 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 97 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 420/420 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 [2023-11-19 08:05:13,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-77.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu --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 80d0dbd642f174f1d467e22c7cd881540a5b30cdbb6826a74a2a8a7b559c2f1a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:05:16,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:05:16,451 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 08:05:16,461 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:05:16,462 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:05:16,512 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:05:16,512 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:05:16,513 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:05:16,514 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:05:16,520 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:05:16,521 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:05:16,521 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:05:16,522 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:05:16,524 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:05:16,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:05:16,525 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:05:16,525 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:05:16,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:05:16,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:05:16,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:05:16,527 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:05:16,528 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:05:16,528 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 08:05:16,529 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 08:05:16,529 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:05:16,530 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:05:16,530 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:05:16,531 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:05:16,531 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:05:16,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:05:16,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:16,533 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:05:16,534 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:05:16,534 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:05:16,535 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 08:05:16,535 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 08:05:16,535 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:05:16,535 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:05:16,536 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:05:16,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:05:16,537 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 08:05:16,538 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:05:16,538 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_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80d0dbd642f174f1d467e22c7cd881540a5b30cdbb6826a74a2a8a7b559c2f1a [2023-11-19 08:05:16,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:05:17,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:05:17,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:05:17,010 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:05:17,010 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:05:17,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-77.i [2023-11-19 08:05:20,352 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:05:20,675 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:05:20,677 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-77.i [2023-11-19 08:05:20,693 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/data/767b06a2e/3edea275a66d4a988a95e51f3802b001/FLAGea6500f39 [2023-11-19 08:05:20,719 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/data/767b06a2e/3edea275a66d4a988a95e51f3802b001 [2023-11-19 08:05:20,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:05:20,726 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:05:20,730 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:20,730 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:05:20,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:05:20,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:20" (1/1) ... [2023-11-19 08:05:20,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11b47e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:20, skipping insertion in model container [2023-11-19 08:05:20,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:20" (1/1) ... [2023-11-19 08:05:20,781 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:05:20,993 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-77.i[915,928] [2023-11-19 08:05:21,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:21,111 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:05:21,132 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_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-77.i[915,928] [2023-11-19 08:05:21,167 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:21,196 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:05:21,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:21 WrapperNode [2023-11-19 08:05:21,197 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:21,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:21,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:05:21,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:05:21,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:21" (1/1) ... [2023-11-19 08:05:21,217 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:21" (1/1) ... [2023-11-19 08:05:21,252 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 108 [2023-11-19 08:05:21,253 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:21,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:05:21,259 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:05:21,260 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:05:21,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:21" (1/1) ... [2023-11-19 08:05:21,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:21" (1/1) ... [2023-11-19 08:05:21,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:21" (1/1) ... [2023-11-19 08:05:21,279 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:21" (1/1) ... [2023-11-19 08:05:21,296 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:21" (1/1) ... [2023-11-19 08:05:21,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:21" (1/1) ... [2023-11-19 08:05:21,308 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:21" (1/1) ... [2023-11-19 08:05:21,318 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:21" (1/1) ... [2023-11-19 08:05:21,322 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:05:21,330 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:05:21,331 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:05:21,331 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:05:21,333 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:21" (1/1) ... [2023-11-19 08:05:21,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:21,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:21,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:05:21,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:05:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:05:21,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 08:05:21,415 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:05:21,415 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:05:21,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:05:21,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:05:21,540 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:05:21,543 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:05:22,135 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:05:22,144 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:05:22,144 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:05:22,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:22 BoogieIcfgContainer [2023-11-19 08:05:22,148 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:05:22,151 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:05:22,151 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:05:22,154 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:05:22,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:05:20" (1/3) ... [2023-11-19 08:05:22,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d54d8e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:22, skipping insertion in model container [2023-11-19 08:05:22,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:21" (2/3) ... [2023-11-19 08:05:22,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d54d8e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:22, skipping insertion in model container [2023-11-19 08:05:22,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:22" (3/3) ... [2023-11-19 08:05:22,158 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-77.i [2023-11-19 08:05:22,179 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:05:22,179 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:05:22,231 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:05:22,237 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;@5b65c682, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:05:22,238 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:05:22,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 08:05:22,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-19 08:05:22,253 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:22,254 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:22,255 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:22,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:22,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1832740109, now seen corresponding path program 1 times [2023-11-19 08:05:22,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:05:22,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945208892] [2023-11-19 08:05:22,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:22,276 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 [2023-11-19 08:05:22,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:05:22,281 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 08:05:22,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:05:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:22,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 08:05:22,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:22,674 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-11-19 08:05:22,674 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:05:22,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:05:22,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945208892] [2023-11-19 08:05:22,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1945208892] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:22,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:22,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:05:22,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371983791] [2023-11-19 08:05:22,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:22,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:05:22,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:05:22,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:05:22,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:05:22,742 INFO L87 Difference]: Start difference. First operand has 50 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 08:05:22,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:22,785 INFO L93 Difference]: Finished difference Result 97 states and 154 transitions. [2023-11-19 08:05:22,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:05:22,802 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2023-11-19 08:05:22,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:22,809 INFO L225 Difference]: With dead ends: 97 [2023-11-19 08:05:22,810 INFO L226 Difference]: Without dead ends: 46 [2023-11-19 08:05:22,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:05:22,818 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:22,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:22,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-19 08:05:22,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-19 08:05:22,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 08:05:22,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 64 transitions. [2023-11-19 08:05:22,868 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 64 transitions. Word has length 98 [2023-11-19 08:05:22,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:22,869 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 64 transitions. [2023-11-19 08:05:22,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 08:05:22,869 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2023-11-19 08:05:22,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-19 08:05:22,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:22,875 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:22,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:05:23,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:05:23,082 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:23,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:23,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1678042361, now seen corresponding path program 1 times [2023-11-19 08:05:23,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:05:23,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2371270] [2023-11-19 08:05:23,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:23,085 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 [2023-11-19 08:05:23,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:05:23,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 08:05:23,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29773c2b-f6bb-45c2-bf6a-0a4e781684f0/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:05:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:23,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 08:05:23,429 INFO L285 TraceCheckSpWp]: Computing forward predicates...