./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.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_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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 d52da112b6c70caf5a0051f5b07592777e147cdc0a968527b7dd1b58dd51c406 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:33:03,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:33:03,273 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:33:03,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:33:03,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:33:03,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:33:03,309 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:33:03,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:33:03,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:33:03,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:33:03,312 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:33:03,313 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:33:03,313 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:33:03,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:33:03,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:33:03,315 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:33:03,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:33:03,317 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:33:03,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:33:03,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:33:03,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:33:03,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:33:03,320 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:33:03,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:33:03,322 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:33:03,323 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:33:03,323 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:33:03,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:33:03,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:03,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:33:03,326 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:33:03,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:33:03,327 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:33:03,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:33:03,328 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:33:03,328 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:33:03,329 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:33:03,329 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:33:03,329 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:33:03,330 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_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d52da112b6c70caf5a0051f5b07592777e147cdc0a968527b7dd1b58dd51c406 [2023-11-19 07:33:03,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:33:03,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:33:03,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:33:03,671 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:33:03,672 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:33:03,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i [2023-11-19 07:33:07,209 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:33:07,551 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:33:07,559 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i [2023-11-19 07:33:07,572 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/data/880055e3b/b857ac5b90c9425e903a2dc4a319fb27/FLAG2a2931af8 [2023-11-19 07:33:07,597 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/data/880055e3b/b857ac5b90c9425e903a2dc4a319fb27 [2023-11-19 07:33:07,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:33:07,610 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:33:07,617 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:07,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:33:07,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:33:07,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:07" (1/1) ... [2023-11-19 07:33:07,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2100d1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:07, skipping insertion in model container [2023-11-19 07:33:07,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:07" (1/1) ... [2023-11-19 07:33:07,688 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:33:07,899 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_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i[915,928] [2023-11-19 07:33:07,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:07,975 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:33:07,993 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_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i[915,928] [2023-11-19 07:33:08,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:08,046 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:33:08,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:08 WrapperNode [2023-11-19 07:33:08,048 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:08,049 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:08,050 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:33:08,050 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:33:08,061 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:08" (1/1) ... [2023-11-19 07:33:08,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:08" (1/1) ... [2023-11-19 07:33:08,117 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 138 [2023-11-19 07:33:08,118 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:08,119 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:33:08,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:33:08,120 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:33:08,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:08" (1/1) ... [2023-11-19 07:33:08,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:08" (1/1) ... [2023-11-19 07:33:08,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:08" (1/1) ... [2023-11-19 07:33:08,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:08" (1/1) ... [2023-11-19 07:33:08,147 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:08" (1/1) ... [2023-11-19 07:33:08,153 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:08" (1/1) ... [2023-11-19 07:33:08,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:08" (1/1) ... [2023-11-19 07:33:08,158 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:08" (1/1) ... [2023-11-19 07:33:08,163 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:33:08,164 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:33:08,165 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:33:08,165 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:33:08,166 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:08" (1/1) ... [2023-11-19 07:33:08,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:08,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:08,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:33:08,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:33:08,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:33:08,262 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:33:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:33:08,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:33:08,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:33:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:33:08,363 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:33:08,366 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:33:08,770 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:33:08,803 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:33:08,803 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:33:08,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:08 BoogieIcfgContainer [2023-11-19 07:33:08,809 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:33:08,813 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:33:08,813 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:33:08,818 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:33:08,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:33:07" (1/3) ... [2023-11-19 07:33:08,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483e15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:08, skipping insertion in model container [2023-11-19 07:33:08,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:08" (2/3) ... [2023-11-19 07:33:08,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483e15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:08, skipping insertion in model container [2023-11-19 07:33:08,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:08" (3/3) ... [2023-11-19 07:33:08,829 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-92.i [2023-11-19 07:33:08,851 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:33:08,851 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:33:08,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:33:08,924 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;@74ba2d40, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:33:08,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:33:08,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:33:08,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-19 07:33:08,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:08,951 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:08,952 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:33:08,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:08,960 INFO L85 PathProgramCache]: Analyzing trace with hash -19277989, now seen corresponding path program 1 times [2023-11-19 07:33:08,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:08,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423400023] [2023-11-19 07:33:08,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:08,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:09,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:09,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423400023] [2023-11-19 07:33:09,223 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:33:09,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729175854] [2023-11-19 07:33:09,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:09,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:09,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:09,227 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:09,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:33:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:09,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:33:09,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:09,559 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2023-11-19 07:33:09,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:33:09,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729175854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:09,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:09,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:33:09,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012756969] [2023-11-19 07:33:09,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:09,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:33:09,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:09,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:33:09,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:33:09,626 INFO L87 Difference]: Start difference. First operand has 59 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 07:33:09,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:09,658 INFO L93 Difference]: Finished difference Result 111 states and 187 transitions. [2023-11-19 07:33:09,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:33:09,662 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 111 [2023-11-19 07:33:09,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:09,669 INFO L225 Difference]: With dead ends: 111 [2023-11-19 07:33:09,669 INFO L226 Difference]: Without dead ends: 55 [2023-11-19 07:33:09,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 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 07:33:09,677 INFO L413 NwaCegarLoop]: 81 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, 81 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 07:33:09,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:09,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-19 07:33:09,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-19 07:33:09,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 36 states have internal predecessors, (47), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:33:09,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 81 transitions. [2023-11-19 07:33:09,729 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 81 transitions. Word has length 111 [2023-11-19 07:33:09,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:09,730 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 81 transitions. [2023-11-19 07:33:09,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 07:33:09,731 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 81 transitions. [2023-11-19 07:33:09,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-19 07:33:09,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:09,736 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:09,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:09,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:33:09,938 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:33:09,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:09,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1663318877, now seen corresponding path program 1 times [2023-11-19 07:33:09,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:09,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779916188] [2023-11-19 07:33:09,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:09,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:10,048 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:33:10,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [831614764] [2023-11-19 07:33:10,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:10,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:10,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:10,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:10,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:33:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:10,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:33:10,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:11,350 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-19 07:33:11,352 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:33:11,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:11,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779916188] [2023-11-19 07:33:11,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:33:11,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831614764] [2023-11-19 07:33:11,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831614764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:11,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:11,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:33:11,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263251336] [2023-11-19 07:33:11,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:11,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:33:11,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:11,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:33:11,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:33:11,363 INFO L87 Difference]: Start difference. First operand 55 states and 81 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 07:33:11,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:11,622 INFO L93 Difference]: Finished difference Result 109 states and 161 transitions. [2023-11-19 07:33:11,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:33:11,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2023-11-19 07:33:11,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:11,629 INFO L225 Difference]: With dead ends: 109 [2023-11-19 07:33:11,630 INFO L226 Difference]: Without dead ends: 57 [2023-11-19 07:33:11,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:33:11,636 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 29 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:11,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 157 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:33:11,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-19 07:33:11,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2023-11-19 07:33:11,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 36 states have internal predecessors, (46), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:33:11,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2023-11-19 07:33:11,654 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 111 [2023-11-19 07:33:11,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:11,656 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2023-11-19 07:33:11,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 07:33:11,657 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2023-11-19 07:33:11,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 07:33:11,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:11,660 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:11,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:11,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:11,883 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:33:11,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:11,884 INFO L85 PathProgramCache]: Analyzing trace with hash 803586712, now seen corresponding path program 1 times [2023-11-19 07:33:11,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:11,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395567411] [2023-11-19 07:33:11,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:11,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:11,977 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:33:11,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [102402560] [2023-11-19 07:33:11,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:11,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:11,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:11,981 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:12,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:33:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:33:12,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:33:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:33:12,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:33:12,212 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:33:12,214 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:33:12,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:12,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:12,445 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:33:12,450 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:33:12,535 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-19 07:33:12,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-19 07:33:12,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-19 07:33:12,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-19 07:33:12,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-19 07:33:12,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-19 07:33:12,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:33:12 BoogieIcfgContainer [2023-11-19 07:33:12,558 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:33:12,566 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:33:12,566 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:33:12,566 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:33:12,567 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:08" (3/4) ... [2023-11-19 07:33:12,576 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:33:12,578 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:33:12,579 INFO L158 Benchmark]: Toolchain (without parser) took 4968.76ms. Allocated memory was 172.0MB in the beginning and 224.4MB in the end (delta: 52.4MB). Free memory was 129.3MB in the beginning and 109.5MB in the end (delta: 19.9MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2023-11-19 07:33:12,580 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 172.0MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:33:12,580 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.28ms. Allocated memory is still 172.0MB. Free memory was 128.9MB in the beginning and 116.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:33:12,581 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.86ms. Allocated memory is still 172.0MB. Free memory was 116.8MB in the beginning and 114.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:33:12,581 INFO L158 Benchmark]: Boogie Preprocessor took 44.12ms. Allocated memory is still 172.0MB. Free memory was 114.7MB in the beginning and 113.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:33:12,587 INFO L158 Benchmark]: RCFGBuilder took 645.51ms. Allocated memory is still 172.0MB. Free memory was 113.0MB in the beginning and 96.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 07:33:12,588 INFO L158 Benchmark]: TraceAbstraction took 3745.52ms. Allocated memory was 172.0MB in the beginning and 224.4MB in the end (delta: 52.4MB). Free memory was 96.2MB in the beginning and 109.5MB in the end (delta: -13.2MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2023-11-19 07:33:12,588 INFO L158 Benchmark]: Witness Printer took 12.56ms. Allocated memory is still 224.4MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:33:12,591 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 172.0MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 431.28ms. Allocated memory is still 172.0MB. Free memory was 128.9MB in the beginning and 116.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.86ms. Allocated memory is still 172.0MB. Free memory was 116.8MB in the beginning and 114.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.12ms. Allocated memory is still 172.0MB. Free memory was 114.7MB in the beginning and 113.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 645.51ms. Allocated memory is still 172.0MB. Free memory was 113.0MB in the beginning and 96.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3745.52ms. Allocated memory was 172.0MB in the beginning and 224.4MB in the end (delta: 52.4MB). Free memory was 96.2MB in the beginning and 109.5MB in the end (delta: -13.2MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. * Witness Printer took 12.56ms. Allocated memory is still 224.4MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 95, overapproximation of someBinaryFLOATComparisonOperation at line 95. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] signed char var_1_2 = 2; [L24] signed char var_1_3 = 8; [L25] signed char var_1_4 = 0; [L26] signed char var_1_5 = 32; [L27] signed char var_1_6 = 10; [L28] double var_1_7 = 1000000.625; [L29] double var_1_8 = 16.65; [L30] signed char var_1_9 = 25; [L31] unsigned char var_1_10 = 0; [L32] unsigned char var_1_11 = 0; [L33] float var_1_12 = 0.25; [L34] unsigned short int var_1_13 = 54726; VAL [isInitial=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L99] isInitial = 1 [L100] FCALL initially() [L101] COND TRUE 1 [L102] FCALL updateLastVariables() [L103] CALL updateVariables() [L65] var_1_2 = __VERIFIER_nondet_char() [L66] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L66] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L67] CALL assume_abort_if_not(var_1_2 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L67] RET assume_abort_if_not(var_1_2 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L68] var_1_3 = __VERIFIER_nondet_char() [L69] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L69] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L70] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L70] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L71] var_1_4 = __VERIFIER_nondet_char() [L72] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L72] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L73] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L73] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L74] var_1_5 = __VERIFIER_nondet_char() [L75] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L75] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L76] CALL assume_abort_if_not(var_1_5 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L76] RET assume_abort_if_not(var_1_5 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L77] var_1_6 = __VERIFIER_nondet_char() [L78] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L78] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L79] CALL assume_abort_if_not(var_1_6 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L79] RET assume_abort_if_not(var_1_6 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L80] var_1_8 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L81] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L82] var_1_10 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L83] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L84] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L84] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L85] var_1_11 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L86] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L87] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L87] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L88] var_1_13 = __VERIFIER_nondet_ushort() [L89] CALL assume_abort_if_not(var_1_13 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L89] RET assume_abort_if_not(var_1_13 >= 32767) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L90] CALL assume_abort_if_not(var_1_13 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L90] RET assume_abort_if_not(var_1_13 <= 65535) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L103] RET updateVariables() [L104] CALL step() [L38] var_1_1 = ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))) [L39] signed char stepLocal_0 = var_1_4; VAL [isInitial=1, stepLocal_0=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L40] EXPR var_1_6 & var_1_3 VAL [isInitial=1, stepLocal_0=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=2, var_1_9=25] [L40] COND TRUE ((~ var_1_5) * (var_1_6 & var_1_3)) >= stepLocal_0 [L41] var_1_7 = var_1_8 VAL [isInitial=1, stepLocal_0=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L43] unsigned char stepLocal_1 = var_1_10; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L44] COND FALSE !(stepLocal_1 && var_1_11) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L47] signed long int stepLocal_4 = var_1_13 - var_1_5; [L48] unsigned char stepLocal_3 = var_1_10; [L49] unsigned char stepLocal_2 = var_1_10; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=0, stepLocal_3=0, stepLocal_4=32767, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L50] COND FALSE !(var_1_11 || stepLocal_3) [L61] var_1_12 = var_1_8 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=0, stepLocal_3=0, stepLocal_4=32767, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L95] EXPR var_1_6 & var_1_3 VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L95] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L95-L96] return (((var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : 1)) && ((var_1_10 && var_1_11) ? (var_1_9 == ((signed char) (var_1_3 - var_1_2))) : 1)) && ((var_1_11 || var_1_10) ? ((var_1_10 || (((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3))) < 32)) ? (((var_1_13 - var_1_5) < var_1_2) ? (var_1_12 == ((float) var_1_8)) : (var_1_12 == ((float) var_1_8))) : (var_1_12 == ((float) var_1_8))) : (var_1_12 == ((float) var_1_8))) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 238 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 95 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 143 mSDtfsCounter, 52 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 221 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 446 NumberOfCodeBlocks, 446 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 1025 SizeOfPredicates, 6 NumberOfNonLiveVariables, 544 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1088/1088 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 07:33:12,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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 d52da112b6c70caf5a0051f5b07592777e147cdc0a968527b7dd1b58dd51c406 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:33:15,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:33:15,890 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:33:15,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:33:15,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:33:15,950 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:33:15,951 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:33:15,952 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:33:15,953 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:33:15,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:33:15,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:33:15,961 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:33:15,962 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:33:15,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:33:15,965 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:33:15,966 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:33:15,966 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:33:15,966 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:33:15,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:33:15,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:33:15,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:33:15,970 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:33:15,970 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:33:15,971 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:33:15,971 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:33:15,972 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:33:15,972 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:33:15,973 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:33:15,973 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:33:15,974 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:33:15,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:15,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:33:15,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:33:15,977 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:33:15,977 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:33:15,977 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:33:15,977 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:33:15,978 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:33:15,978 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:33:15,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:33:15,980 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:33:15,980 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:33:15,980 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_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d52da112b6c70caf5a0051f5b07592777e147cdc0a968527b7dd1b58dd51c406 [2023-11-19 07:33:16,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:33:16,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:33:16,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:33:16,497 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:33:16,498 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:33:16,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i [2023-11-19 07:33:19,857 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:33:20,134 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:33:20,135 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i [2023-11-19 07:33:20,144 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/data/b13443048/9b240aa855de4fd78fd85ca10ac37d2e/FLAG67336ec4e [2023-11-19 07:33:20,160 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/data/b13443048/9b240aa855de4fd78fd85ca10ac37d2e [2023-11-19 07:33:20,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:33:20,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:33:20,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:20,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:33:20,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:33:20,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:20" (1/1) ... [2023-11-19 07:33:20,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ee6f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:20, skipping insertion in model container [2023-11-19 07:33:20,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:20" (1/1) ... [2023-11-19 07:33:20,205 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:33:20,372 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_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i[915,928] [2023-11-19 07:33:20,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:20,428 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:33:20,440 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_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i[915,928] [2023-11-19 07:33:20,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:20,482 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:33:20,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:20 WrapperNode [2023-11-19 07:33:20,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:20,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:20,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:33:20,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:33:20,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:20" (1/1) ... [2023-11-19 07:33:20,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:20" (1/1) ... [2023-11-19 07:33:20,604 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 108 [2023-11-19 07:33:20,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:20,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:33:20,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:33:20,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:33:20,615 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:20" (1/1) ... [2023-11-19 07:33:20,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:20" (1/1) ... [2023-11-19 07:33:20,620 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:20" (1/1) ... [2023-11-19 07:33:20,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:20" (1/1) ... [2023-11-19 07:33:20,632 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:20" (1/1) ... [2023-11-19 07:33:20,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:20" (1/1) ... [2023-11-19 07:33:20,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:20" (1/1) ... [2023-11-19 07:33:20,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:20" (1/1) ... [2023-11-19 07:33:20,644 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:33:20,645 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:33:20,645 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:33:20,646 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:33:20,646 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:20" (1/1) ... [2023-11-19 07:33:20,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:20,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:20,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:33:20,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:33:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:33:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:33:20,738 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:33:20,738 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:33:20,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:33:20,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:33:20,822 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:33:20,825 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:33:21,856 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:33:21,868 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:33:21,869 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:33:21,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:21 BoogieIcfgContainer [2023-11-19 07:33:21,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:33:21,877 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:33:21,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:33:21,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:33:21,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:33:20" (1/3) ... [2023-11-19 07:33:21,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e082722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:21, skipping insertion in model container [2023-11-19 07:33:21,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:20" (2/3) ... [2023-11-19 07:33:21,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e082722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:21, skipping insertion in model container [2023-11-19 07:33:21,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:21" (3/3) ... [2023-11-19 07:33:21,886 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-92.i [2023-11-19 07:33:21,928 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:33:21,928 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:33:21,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:33:21,999 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;@43d158a9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:33:22,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:33:22,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:33:22,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-19 07:33:22,020 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:22,022 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:22,023 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:33:22,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:22,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1811266942, now seen corresponding path program 1 times [2023-11-19 07:33:22,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:33:22,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739697988] [2023-11-19 07:33:22,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:22,046 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 07:33:22,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:33:22,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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 07:33:22,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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 07:33:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:22,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:33:22,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-11-19 07:33:22,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:33:22,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:33:22,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739697988] [2023-11-19 07:33:22,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1739697988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:22,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:22,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:33:22,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192849427] [2023-11-19 07:33:22,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:22,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:33:22,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:33:22,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:33:22,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:33:22,527 INFO L87 Difference]: Start difference. First operand has 52 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 07:33:22,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:22,575 INFO L93 Difference]: Finished difference Result 97 states and 163 transitions. [2023-11-19 07:33:22,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:33:22,578 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108 [2023-11-19 07:33:22,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:22,586 INFO L225 Difference]: With dead ends: 97 [2023-11-19 07:33:22,586 INFO L226 Difference]: Without dead ends: 48 [2023-11-19 07:33:22,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 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 07:33:22,594 INFO L413 NwaCegarLoop]: 69 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, 69 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 07:33:22,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:22,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-19 07:33:22,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-19 07:33:22,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:33:22,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2023-11-19 07:33:22,645 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 108 [2023-11-19 07:33:22,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:22,645 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2023-11-19 07:33:22,646 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 07:33:22,646 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2023-11-19 07:33:22,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-19 07:33:22,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:22,650 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:22,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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 07:33:22,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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 07:33:22,851 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:33:22,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:22,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1752934588, now seen corresponding path program 1 times [2023-11-19 07:33:22,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:33:22,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751028681] [2023-11-19 07:33:22,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:22,854 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 07:33:22,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:33:22,855 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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 07:33:22,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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 07:33:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:23,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:33:23,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:23,454 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-11-19 07:33:23,454 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:33:23,712 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-19 07:33:23,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:33:23,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751028681] [2023-11-19 07:33:23,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751028681] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 07:33:23,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:33:23,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-19 07:33:23,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003383815] [2023-11-19 07:33:23,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:23,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:33:23,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:33:23,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:33:23,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:33:23,717 INFO L87 Difference]: Start difference. First operand 48 states and 69 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 07:33:24,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:24,207 INFO L93 Difference]: Finished difference Result 126 states and 181 transitions. [2023-11-19 07:33:24,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:33:24,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2023-11-19 07:33:24,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:24,212 INFO L225 Difference]: With dead ends: 126 [2023-11-19 07:33:24,213 INFO L226 Difference]: Without dead ends: 81 [2023-11-19 07:33:24,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:33:24,215 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 78 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:24,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 261 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:33:24,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-19 07:33:24,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2023-11-19 07:33:24,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 48 states have internal predecessors, (56), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 07:33:24,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2023-11-19 07:33:24,237 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 108 [2023-11-19 07:33:24,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:24,238 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2023-11-19 07:33:24,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 07:33:24,238 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2023-11-19 07:33:24,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-19 07:33:24,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:24,241 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:24,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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)] Ended with exit code 0 [2023-11-19 07:33:24,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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 07:33:24,446 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:33:24,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:24,447 INFO L85 PathProgramCache]: Analyzing trace with hash -767025346, now seen corresponding path program 1 times [2023-11-19 07:33:24,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:33:24,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184639700] [2023-11-19 07:33:24,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:24,448 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 07:33:24,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:33:24,449 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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 07:33:24,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab29eb56-04b1-4212-9ab5-f8c0ced6a07e/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 (4)] Waiting until timeout for monitored process [2023-11-19 07:33:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:24,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 07:33:24,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:50,516 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 294 proven. 159 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-19 07:33:50,517 INFO L327 TraceCheckSpWp]: Computing backward predicates...