./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-57.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_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/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_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-57.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/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_9af88d40-2d09-4c81-886a-98e1db6ac043/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 b52051d145fb2b47c7d32126bb345ca7aff8e39890cc67cf57ddb4a3e09751a2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:48:16,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:48:16,318 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:48:16,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:48:16,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:48:16,383 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:48:16,384 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:48:16,385 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:48:16,386 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:48:16,391 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:48:16,392 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:48:16,392 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:48:16,393 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:48:16,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:48:16,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:48:16,396 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:48:16,396 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:48:16,397 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:48:16,397 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:48:16,398 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:48:16,398 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:48:16,399 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:48:16,399 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:48:16,400 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:48:16,401 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:48:16,402 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:48:16,402 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:48:16,403 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:48:16,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:16,404 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:48:16,405 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:48:16,405 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:48:16,406 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:48:16,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:48:16,406 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:48:16,407 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:48:16,407 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:48:16,429 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:48:16,430 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:48:16,430 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_9af88d40-2d09-4c81-886a-98e1db6ac043/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b52051d145fb2b47c7d32126bb345ca7aff8e39890cc67cf57ddb4a3e09751a2 [2023-11-19 07:48:16,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:48:16,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:48:16,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:48:16,730 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:48:16,731 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:48:16,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-57.i [2023-11-19 07:48:19,961 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:48:20,190 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:48:20,191 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-57.i [2023-11-19 07:48:20,201 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/data/da6405d24/d563848659d34d60adc28aad0c5b341b/FLAGde1b5d8fa [2023-11-19 07:48:20,220 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/data/da6405d24/d563848659d34d60adc28aad0c5b341b [2023-11-19 07:48:20,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:48:20,225 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:48:20,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:20,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:48:20,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:48:20,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6b15c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20, skipping insertion in model container [2023-11-19 07:48:20,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,286 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:48:20,480 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_9af88d40-2d09-4c81-886a-98e1db6ac043/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-57.i[913,926] [2023-11-19 07:48:20,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:20,586 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:48:20,616 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_9af88d40-2d09-4c81-886a-98e1db6ac043/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-57.i[913,926] [2023-11-19 07:48:20,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:20,677 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:48:20,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20 WrapperNode [2023-11-19 07:48:20,677 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:20,679 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:20,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:48:20,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:48:20,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,750 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 119 [2023-11-19 07:48:20,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:20,759 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:48:20,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:48:20,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:48:20,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,775 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,786 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,788 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,790 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,795 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:48:20,796 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:48:20,796 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:48:20,796 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:48:20,797 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:20,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:20,838 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:48:20,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:48:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:48:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:48:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:48:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:48:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:48:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:48:20,965 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:48:20,967 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:48:21,267 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:48:21,284 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:48:21,285 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:48:21,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:21 BoogieIcfgContainer [2023-11-19 07:48:21,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:48:21,292 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:48:21,292 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:48:21,296 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:48:21,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:48:20" (1/3) ... [2023-11-19 07:48:21,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b58ab06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:21, skipping insertion in model container [2023-11-19 07:48:21,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (2/3) ... [2023-11-19 07:48:21,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b58ab06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:21, skipping insertion in model container [2023-11-19 07:48:21,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:21" (3/3) ... [2023-11-19 07:48:21,300 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-57.i [2023-11-19 07:48:21,321 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:48:21,322 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:48:21,378 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:48:21,386 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;@72bd721e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:48:21,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:48:21,391 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:48:21,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 07:48:21,407 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:21,408 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:21,408 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:21,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:21,414 INFO L85 PathProgramCache]: Analyzing trace with hash 121557008, now seen corresponding path program 1 times [2023-11-19 07:48:21,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:21,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329498130] [2023-11-19 07:48:21,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:21,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:48:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:48:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:48:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:48:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:48:21,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:48:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:48:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:48:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:48:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:48:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:48:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:48:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:48:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:48:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:48:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-19 07:48:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-19 07:48:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-19 07:48:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,994 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-19 07:48:21,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:21,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329498130] [2023-11-19 07:48:21,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329498130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:21,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:21,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:21,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949465805] [2023-11-19 07:48:22,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:22,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:48:22,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:22,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:48:22,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:48:22,070 INFO L87 Difference]: Start difference. First operand has 53 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 07:48:22,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:22,117 INFO L93 Difference]: Finished difference Result 99 states and 168 transitions. [2023-11-19 07:48:22,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:48:22,120 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113 [2023-11-19 07:48:22,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:22,131 INFO L225 Difference]: With dead ends: 99 [2023-11-19 07:48:22,132 INFO L226 Difference]: Without dead ends: 49 [2023-11-19 07:48:22,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:48:22,143 INFO L413 NwaCegarLoop]: 71 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, 71 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 07:48:22,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:22,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-19 07:48:22,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-19 07:48:22,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:48:22,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2023-11-19 07:48:22,209 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 113 [2023-11-19 07:48:22,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:22,209 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2023-11-19 07:48:22,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 07:48:22,210 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2023-11-19 07:48:22,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 07:48:22,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:22,214 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:22,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:48:22,216 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:22,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:22,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1413857616, now seen corresponding path program 1 times [2023-11-19 07:48:22,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:22,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019284294] [2023-11-19 07:48:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:22,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:48:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:48:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:48:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:48:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:48:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:48:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:48:22,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:48:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:48:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:48:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:48:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:48:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:48:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:48:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:48:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-19 07:48:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-19 07:48:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-19 07:48:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,876 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-19 07:48:22,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:22,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019284294] [2023-11-19 07:48:22,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019284294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:22,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:22,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:48:22,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581558439] [2023-11-19 07:48:22,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:22,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:22,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:22,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:22,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:22,884 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 07:48:23,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:23,075 INFO L93 Difference]: Finished difference Result 142 states and 208 transitions. [2023-11-19 07:48:23,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:48:23,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113 [2023-11-19 07:48:23,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:23,080 INFO L225 Difference]: With dead ends: 142 [2023-11-19 07:48:23,080 INFO L226 Difference]: Without dead ends: 96 [2023-11-19 07:48:23,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:23,083 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 40 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:23,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 189 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:48:23,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-19 07:48:23,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 83. [2023-11-19 07:48:23,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 44 states have internal predecessors, (50), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 07:48:23,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 122 transitions. [2023-11-19 07:48:23,120 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 122 transitions. Word has length 113 [2023-11-19 07:48:23,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:23,121 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 122 transitions. [2023-11-19 07:48:23,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 07:48:23,122 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 122 transitions. [2023-11-19 07:48:23,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-19 07:48:23,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:23,125 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:23,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:48:23,126 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:23,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:23,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1713959245, now seen corresponding path program 1 times [2023-11-19 07:48:23,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:23,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700320619] [2023-11-19 07:48:23,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:23,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:23,242 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:48:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:23,473 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:48:23,473 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:48:23,474 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:48:23,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:48:23,480 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:48:23,484 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:48:23,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:48:23 BoogieIcfgContainer [2023-11-19 07:48:23,606 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:48:23,607 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:48:23,607 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:48:23,607 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:48:23,608 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:21" (3/4) ... [2023-11-19 07:48:23,611 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:48:23,613 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:48:23,614 INFO L158 Benchmark]: Toolchain (without parser) took 3388.71ms. Allocated memory was 138.4MB in the beginning and 218.1MB in the end (delta: 79.7MB). Free memory was 95.5MB in the beginning and 171.3MB in the end (delta: -75.9MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2023-11-19 07:48:23,615 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 138.4MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:48:23,616 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.96ms. Allocated memory is still 138.4MB. Free memory was 95.5MB in the beginning and 83.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:48:23,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.53ms. Allocated memory is still 138.4MB. Free memory was 83.0MB in the beginning and 80.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:48:23,623 INFO L158 Benchmark]: Boogie Preprocessor took 35.78ms. Allocated memory is still 138.4MB. Free memory was 80.9MB in the beginning and 79.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:48:23,623 INFO L158 Benchmark]: RCFGBuilder took 493.47ms. Allocated memory is still 138.4MB. Free memory was 79.2MB in the beginning and 64.1MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:48:23,624 INFO L158 Benchmark]: TraceAbstraction took 2313.70ms. Allocated memory was 138.4MB in the beginning and 218.1MB in the end (delta: 79.7MB). Free memory was 63.4MB in the beginning and 171.3MB in the end (delta: -108.0MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2023-11-19 07:48:23,624 INFO L158 Benchmark]: Witness Printer took 6.26ms. Allocated memory is still 218.1MB. Free memory is still 171.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:48:23,634 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 138.4MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.96ms. Allocated memory is still 138.4MB. Free memory was 95.5MB in the beginning and 83.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.53ms. Allocated memory is still 138.4MB. Free memory was 83.0MB in the beginning and 80.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.78ms. Allocated memory is still 138.4MB. Free memory was 80.9MB in the beginning and 79.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 493.47ms. Allocated memory is still 138.4MB. Free memory was 79.2MB in the beginning and 64.1MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2313.70ms. Allocated memory was 138.4MB in the beginning and 218.1MB in the end (delta: 79.7MB). Free memory was 63.4MB in the beginning and 171.3MB in the end (delta: -108.0MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. * Witness Printer took 6.26ms. Allocated memory is still 218.1MB. Free memory is still 171.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 101. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 1; [L23] unsigned char var_1_4 = 0; [L24] unsigned char var_1_5 = 0; [L25] unsigned char var_1_6 = 1; [L26] signed char var_1_9 = 64; [L27] signed char var_1_10 = 4; [L28] signed char var_1_11 = -4; [L29] signed char var_1_12 = 32; [L30] signed char var_1_13 = 32; [L31] signed char var_1_14 = -64; [L32] signed char var_1_15 = 50; [L33] signed char var_1_16 = 16; [L34] float var_1_17 = 63.5; [L35] signed char last_1_var_1_9 = 64; [L36] signed char last_1_var_1_14 = -64; VAL [isInitial=0, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=0, var_1_5=0, var_1_6=1, var_1_9=64] [L105] isInitial = 1 [L106] FCALL initially() [L107] COND TRUE 1 [L108] CALL updateLastVariables() [L97] last_1_var_1_9 = var_1_9 [L98] last_1_var_1_14 = var_1_14 VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=0, var_1_5=0, var_1_6=1, var_1_9=64] [L108] RET updateLastVariables() [L109] CALL updateVariables() [L68] var_1_4 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_5=0, var_1_6=1, var_1_9=64] [L69] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_5=0, var_1_6=1, var_1_9=64] [L70] CALL assume_abort_if_not(var_1_4 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L70] RET assume_abort_if_not(var_1_4 <= 1) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L71] var_1_5 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L72] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L73] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L73] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L74] var_1_6 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L75] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L76] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L76] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L77] var_1_10 = __VERIFIER_nondet_char() [L78] CALL assume_abort_if_not(var_1_10 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L78] RET assume_abort_if_not(var_1_10 >= -127) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L79] CALL assume_abort_if_not(var_1_10 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L79] RET assume_abort_if_not(var_1_10 <= 126) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L80] var_1_11 = __VERIFIER_nondet_char() [L81] CALL assume_abort_if_not(var_1_11 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L81] RET assume_abort_if_not(var_1_11 >= -127) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L82] CALL assume_abort_if_not(var_1_11 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L82] RET assume_abort_if_not(var_1_11 <= 126) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L83] var_1_12 = __VERIFIER_nondet_char() [L84] CALL assume_abort_if_not(var_1_12 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L84] RET assume_abort_if_not(var_1_12 >= -1) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L85] CALL assume_abort_if_not(var_1_12 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L85] RET assume_abort_if_not(var_1_12 <= 126) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L86] var_1_13 = __VERIFIER_nondet_char() [L87] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L87] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L88] CALL assume_abort_if_not(var_1_13 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L88] RET assume_abort_if_not(var_1_13 <= 126) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L89] var_1_15 = __VERIFIER_nondet_char() [L90] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=64, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=64, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L90] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=64, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L91] CALL assume_abort_if_not(var_1_15 <= 64) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=64, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=64, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L91] RET assume_abort_if_not(var_1_15 <= 64) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=64, var_1_16=16, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L92] var_1_16 = __VERIFIER_nondet_char() [L93] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=64, var_1_16=0, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=64, var_1_16=0, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L93] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=64, var_1_16=0, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L94] CALL assume_abort_if_not(var_1_16 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=64, var_1_16=0, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=64, var_1_16=0, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L94] RET assume_abort_if_not(var_1_16 <= 63) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=64, var_1_16=0, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L109] RET updateVariables() [L110] CALL step() [L40] unsigned char stepLocal_0 = var_1_6; VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, stepLocal_0=1, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=64, var_1_16=0, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L41] COND TRUE ! (last_1_var_1_14 >= last_1_var_1_9) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, stepLocal_0=1, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=64, var_1_16=0, var_1_17=127/2, var_1_1=1, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L42] COND TRUE (var_1_4 || var_1_5) && stepLocal_0 [L43] var_1_1 = ((((last_1_var_1_9) < (last_1_var_1_14)) ? (last_1_var_1_9) : (last_1_var_1_14))) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, stepLocal_0=1, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=64, var_1_16=0, var_1_17=127/2, var_1_1=-64, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L50] signed long int stepLocal_3 = (var_1_15 + var_1_16) - ((((64) > (var_1_13)) ? (64) : (var_1_13))); VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, stepLocal_0=1, stepLocal_3=0, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=-64, var_1_15=64, var_1_16=0, var_1_17=127/2, var_1_1=-64, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L51] COND TRUE var_1_12 < stepLocal_3 [L52] var_1_14 = ((64 - var_1_16) - var_1_13) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, stepLocal_0=1, stepLocal_3=0, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=0, var_1_15=64, var_1_16=0, var_1_17=127/2, var_1_1=-64, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L56] var_1_17 = 128.91f [L57] unsigned char stepLocal_2 = var_1_14 == var_1_1; [L58] unsigned char stepLocal_1 = var_1_5; VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, stepLocal_0=1, stepLocal_1=0, stepLocal_2=0, stepLocal_3=0, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=0, var_1_15=64, var_1_16=0, var_1_17=12891/100, var_1_1=-64, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=64] [L59] COND FALSE !(stepLocal_1 && var_1_4) [L64] var_1_9 = (var_1_12 - var_1_13) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, stepLocal_0=1, stepLocal_1=0, stepLocal_2=0, stepLocal_3=0, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=0, var_1_15=64, var_1_16=0, var_1_17=12891/100, var_1_1=-64, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=-65] [L110] RET step() [L111] CALL, EXPR property() [L101-L102] return ((((! (last_1_var_1_14 >= last_1_var_1_9)) ? (((var_1_4 || var_1_5) && var_1_6) ? (var_1_1 == ((signed long int) ((((last_1_var_1_9) < (last_1_var_1_14)) ? (last_1_var_1_9) : (last_1_var_1_14))))) : (var_1_1 == ((signed long int) last_1_var_1_14))) : (var_1_1 == ((signed long int) last_1_var_1_14))) && ((var_1_5 && var_1_4) ? ((var_1_6 || (var_1_14 == var_1_1)) ? (var_1_9 == ((signed char) ((((var_1_10) < (var_1_11)) ? (var_1_10) : (var_1_11))))) : 1) : (var_1_9 == ((signed char) (var_1_12 - var_1_13))))) && ((var_1_12 < ((var_1_15 + var_1_16) - ((((64) > (var_1_13)) ? (64) : (var_1_13))))) ? (var_1_14 == ((signed char) ((64 - var_1_16) - var_1_13))) : (var_1_14 == ((signed char) ((((var_1_10) < (var_1_11)) ? (var_1_10) : (var_1_11))))))) && (var_1_17 == ((float) 128.91f)) ; VAL [\result=0, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=0, var_1_15=64, var_1_16=0, var_1_17=12891/100, var_1_1=-64, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=-65] [L111] RET, EXPR property() [L111] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=0, var_1_15=64, var_1_16=0, var_1_17=12891/100, var_1_1=-64, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=-65] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=-127, var_1_11=-127, var_1_12=-1, var_1_13=64, var_1_14=0, var_1_15=64, var_1_16=0, var_1_17=12891/100, var_1_1=-64, var_1_4=1, var_1_5=0, var_1_6=1, var_1_9=-65] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 260 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 137 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=2, 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 224 ConstructedInterpolants, 0 QuantifiedInterpolants, 352 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1224/1224 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 07:48:23,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/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_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/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_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-57.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/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_9af88d40-2d09-4c81-886a-98e1db6ac043/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 b52051d145fb2b47c7d32126bb345ca7aff8e39890cc67cf57ddb4a3e09751a2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:48:26,403 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:48:26,514 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:48:26,522 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:48:26,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:48:26,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:48:26,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:48:26,567 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:48:26,568 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:48:26,568 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:48:26,569 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:48:26,570 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:48:26,570 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:48:26,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:48:26,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:48:26,572 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:48:26,572 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:48:26,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:48:26,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:48:26,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:48:26,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:48:26,574 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:48:26,575 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:48:26,575 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:48:26,576 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:48:26,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:48:26,576 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:48:26,577 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:48:26,577 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:48:26,578 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:48:26,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:26,578 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:48:26,579 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:48:26,579 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:48:26,579 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:48:26,579 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:48:26,580 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:48:26,580 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:48:26,580 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:48:26,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:48:26,581 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:48:26,581 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:48:26,581 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_9af88d40-2d09-4c81-886a-98e1db6ac043/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b52051d145fb2b47c7d32126bb345ca7aff8e39890cc67cf57ddb4a3e09751a2 [2023-11-19 07:48:26,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:48:26,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:48:26,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:48:26,998 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:48:26,998 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:48:27,001 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-57.i [2023-11-19 07:48:30,255 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:48:30,542 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:48:30,543 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-57.i [2023-11-19 07:48:30,554 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/data/b1aea5066/71071e377c7d4cf99a4ef16691c27444/FLAG2f5ee46b1 [2023-11-19 07:48:30,571 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/data/b1aea5066/71071e377c7d4cf99a4ef16691c27444 [2023-11-19 07:48:30,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:48:30,576 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:48:30,578 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:30,578 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:48:30,585 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:48:30,586 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:30" (1/1) ... [2023-11-19 07:48:30,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc3d90e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:30, skipping insertion in model container [2023-11-19 07:48:30,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:30" (1/1) ... [2023-11-19 07:48:30,617 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:48:30,830 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_9af88d40-2d09-4c81-886a-98e1db6ac043/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-57.i[913,926] [2023-11-19 07:48:30,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:30,942 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:48:30,960 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_9af88d40-2d09-4c81-886a-98e1db6ac043/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-57.i[913,926] [2023-11-19 07:48:31,009 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:31,034 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:48:31,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:31 WrapperNode [2023-11-19 07:48:31,035 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:31,036 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:31,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:48:31,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:48:31,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:31" (1/1) ... [2023-11-19 07:48:31,072 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:31" (1/1) ... [2023-11-19 07:48:31,120 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2023-11-19 07:48:31,122 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:31,123 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:48:31,124 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:48:31,124 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:48:31,134 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:31" (1/1) ... [2023-11-19 07:48:31,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:31" (1/1) ... [2023-11-19 07:48:31,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:31" (1/1) ... [2023-11-19 07:48:31,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:31" (1/1) ... [2023-11-19 07:48:31,165 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:31" (1/1) ... [2023-11-19 07:48:31,179 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:31" (1/1) ... [2023-11-19 07:48:31,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:31" (1/1) ... [2023-11-19 07:48:31,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:31" (1/1) ... [2023-11-19 07:48:31,187 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:48:31,194 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:48:31,195 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:48:31,195 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:48:31,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:31" (1/1) ... [2023-11-19 07:48:31,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:31,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:31,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:48:31,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:48:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:48:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:48:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:48:31,280 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:48:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:48:31,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:48:31,417 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:48:31,420 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:48:31,757 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:48:31,773 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:48:31,773 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:48:31,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:31 BoogieIcfgContainer [2023-11-19 07:48:31,779 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:48:31,782 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:48:31,783 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:48:31,786 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:48:31,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:48:30" (1/3) ... [2023-11-19 07:48:31,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da04d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:31, skipping insertion in model container [2023-11-19 07:48:31,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:31" (2/3) ... [2023-11-19 07:48:31,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da04d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:31, skipping insertion in model container [2023-11-19 07:48:31,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:31" (3/3) ... [2023-11-19 07:48:31,790 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-57.i [2023-11-19 07:48:31,808 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:48:31,809 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:48:31,857 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:48:31,864 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;@68833616, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:48:31,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:48:31,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:48:31,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 07:48:31,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:31,888 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:31,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:31,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:31,894 INFO L85 PathProgramCache]: Analyzing trace with hash 121557008, now seen corresponding path program 1 times [2023-11-19 07:48:31,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:48:31,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238846984] [2023-11-19 07:48:31,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:31,909 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 07:48:31,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:48:31,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/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 07:48:31,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/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 07:48:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:32,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:48:32,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-19 07:48:32,258 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:32,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:48:32,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238846984] [2023-11-19 07:48:32,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238846984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:32,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:32,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:32,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346288945] [2023-11-19 07:48:32,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:32,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:48:32,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:48:32,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:48:32,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:48:32,313 INFO L87 Difference]: Start difference. First operand has 53 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 07:48:32,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:32,343 INFO L93 Difference]: Finished difference Result 99 states and 168 transitions. [2023-11-19 07:48:32,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:48:32,345 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113 [2023-11-19 07:48:32,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:32,355 INFO L225 Difference]: With dead ends: 99 [2023-11-19 07:48:32,355 INFO L226 Difference]: Without dead ends: 49 [2023-11-19 07:48:32,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 112 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 07:48:32,365 INFO L413 NwaCegarLoop]: 71 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, 71 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 07:48:32,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:32,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-19 07:48:32,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-19 07:48:32,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:48:32,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2023-11-19 07:48:32,426 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 113 [2023-11-19 07:48:32,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:32,428 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2023-11-19 07:48:32,428 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 07:48:32,428 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2023-11-19 07:48:32,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 07:48:32,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:32,435 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:32,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/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 07:48:32,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/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 07:48:32,645 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:32,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:32,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1413857616, now seen corresponding path program 1 times [2023-11-19 07:48:32,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:48:32,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1698589955] [2023-11-19 07:48:32,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:32,648 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 07:48:32,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:48:32,650 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/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 07:48:32,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/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 07:48:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:32,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:48:32,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-19 07:48:33,833 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:33,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:48:33,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1698589955] [2023-11-19 07:48:33,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1698589955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:33,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:33,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:48:33,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025300679] [2023-11-19 07:48:33,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:33,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:33,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:48:33,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:33,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:33,839 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 07:48:34,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:34,055 INFO L93 Difference]: Finished difference Result 142 states and 208 transitions. [2023-11-19 07:48:34,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:48:34,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113 [2023-11-19 07:48:34,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:34,061 INFO L225 Difference]: With dead ends: 142 [2023-11-19 07:48:34,061 INFO L226 Difference]: Without dead ends: 96 [2023-11-19 07:48:34,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:34,064 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 37 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:34,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 189 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:48:34,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-19 07:48:34,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 83. [2023-11-19 07:48:34,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 44 states have internal predecessors, (50), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 07:48:34,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 122 transitions. [2023-11-19 07:48:34,104 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 122 transitions. Word has length 113 [2023-11-19 07:48:34,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:34,105 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 122 transitions. [2023-11-19 07:48:34,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 07:48:34,106 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 122 transitions. [2023-11-19 07:48:34,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-19 07:48:34,109 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:34,109 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:34,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/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 07:48:34,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/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 07:48:34,315 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:34,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:34,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1713959245, now seen corresponding path program 1 times [2023-11-19 07:48:34,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:48:34,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133720773] [2023-11-19 07:48:34,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:34,317 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 07:48:34,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:48:34,318 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/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 07:48:34,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af88d40-2d09-4c81-886a-98e1db6ac043/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 07:48:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:34,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-19 07:48:34,567 INFO L285 TraceCheckSpWp]: Computing forward predicates...