./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-73.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-73.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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_a4a74416-737c-4eee-8aa6-19916fefe17e/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 2d76b174fceab1b4f0b7c723c11189a89dfae9fb8b439d670404c7bcb817a6a0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:59:05,994 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:59:06,105 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:59:06,110 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:59:06,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:59:06,135 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:59:06,136 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:59:06,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:59:06,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:59:06,139 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:59:06,140 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:59:06,141 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:59:06,142 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:59:06,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:59:06,146 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:59:06,146 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:59:06,147 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:59:06,151 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:59:06,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:59:06,153 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:59:06,153 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:59:06,154 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:59:06,154 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:59:06,154 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:59:06,155 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:59:06,155 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:59:06,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:59:06,156 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:59:06,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:06,157 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:59:06,157 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:59:06,158 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:59:06,158 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:59:06,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:59:06,158 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:59:06,159 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:59:06,159 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:59:06,159 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:59:06,159 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:59:06,159 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_a4a74416-737c-4eee-8aa6-19916fefe17e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d76b174fceab1b4f0b7c723c11189a89dfae9fb8b439d670404c7bcb817a6a0 [2023-11-19 07:59:06,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:59:06,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:59:06,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:59:06,514 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:59:06,515 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:59:06,516 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-73.i [2023-11-19 07:59:09,709 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:59:09,932 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:59:09,933 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-73.i [2023-11-19 07:59:09,944 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/data/c727933c2/8c280c9812e54aaea31a01766f191530/FLAG95e6b3881 [2023-11-19 07:59:09,970 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/data/c727933c2/8c280c9812e54aaea31a01766f191530 [2023-11-19 07:59:09,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:59:09,980 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:59:09,981 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:09,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:59:09,989 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:59:09,990 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:09" (1/1) ... [2023-11-19 07:59:09,991 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f82d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:09, skipping insertion in model container [2023-11-19 07:59:09,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:09" (1/1) ... [2023-11-19 07:59:10,019 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:59:10,178 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_a4a74416-737c-4eee-8aa6-19916fefe17e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-73.i[915,928] [2023-11-19 07:59:10,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:10,238 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:59:10,252 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_a4a74416-737c-4eee-8aa6-19916fefe17e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-73.i[915,928] [2023-11-19 07:59:10,275 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:10,294 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:59:10,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:10 WrapperNode [2023-11-19 07:59:10,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:10,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:10,296 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:59:10,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:59:10,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:10" (1/1) ... [2023-11-19 07:59:10,318 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:10" (1/1) ... [2023-11-19 07:59:10,368 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 86 [2023-11-19 07:59:10,368 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:10,369 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:59:10,369 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:59:10,370 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:59:10,380 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:10" (1/1) ... [2023-11-19 07:59:10,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:10" (1/1) ... [2023-11-19 07:59:10,383 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:10" (1/1) ... [2023-11-19 07:59:10,383 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:10" (1/1) ... [2023-11-19 07:59:10,390 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:10" (1/1) ... [2023-11-19 07:59:10,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:10" (1/1) ... [2023-11-19 07:59:10,395 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:10" (1/1) ... [2023-11-19 07:59:10,397 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:10" (1/1) ... [2023-11-19 07:59:10,400 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:59:10,401 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:59:10,401 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:59:10,401 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:59:10,402 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:10" (1/1) ... [2023-11-19 07:59:10,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:10,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:10,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:10,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:59:10,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:59:10,488 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:59:10,488 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:59:10,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:59:10,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:59:10,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:59:10,585 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:59:10,588 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:59:10,901 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:59:10,910 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:59:10,910 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:59:10,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:10 BoogieIcfgContainer [2023-11-19 07:59:10,914 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:59:10,917 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:59:10,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:59:10,921 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:59:10,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:09" (1/3) ... [2023-11-19 07:59:10,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57260634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:10, skipping insertion in model container [2023-11-19 07:59:10,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:10" (2/3) ... [2023-11-19 07:59:10,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57260634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:10, skipping insertion in model container [2023-11-19 07:59:10,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:10" (3/3) ... [2023-11-19 07:59:10,924 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-73.i [2023-11-19 07:59:10,940 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:59:10,940 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:59:10,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:59:10,995 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;@1f9d0413, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:59:10,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:59:11,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 28 states have internal predecessors, (37), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:59:11,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 07:59:11,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:11,013 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:11,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:11,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:11,018 INFO L85 PathProgramCache]: Analyzing trace with hash 715450892, now seen corresponding path program 1 times [2023-11-19 07:59:11,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:11,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544199425] [2023-11-19 07:59:11,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:11,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:59:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:59:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:59:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:59:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:59:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-19 07:59:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:59:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:59:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:59:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:11,388 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 07:59:11,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:11,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544199425] [2023-11-19 07:59:11,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544199425] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:11,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:11,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:11,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134989037] [2023-11-19 07:59:11,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:11,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:59:11,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:11,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:59:11,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:59:11,444 INFO L87 Difference]: Start difference. First operand has 39 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 28 states have internal predecessors, (37), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 07:59:11,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:11,484 INFO L93 Difference]: Finished difference Result 71 states and 113 transitions. [2023-11-19 07:59:11,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:59:11,487 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2023-11-19 07:59:11,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:11,496 INFO L225 Difference]: With dead ends: 71 [2023-11-19 07:59:11,497 INFO L226 Difference]: Without dead ends: 35 [2023-11-19 07:59:11,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 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 07:59:11,509 INFO L413 NwaCegarLoop]: 48 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, 48 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 07:59:11,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:59:11,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-19 07:59:11,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-19 07:59:11,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:59:11,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2023-11-19 07:59:11,553 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 63 [2023-11-19 07:59:11,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:11,554 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2023-11-19 07:59:11,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 07:59:11,554 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2023-11-19 07:59:11,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 07:59:11,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:11,575 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:11,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:59:11,575 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:11,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:11,577 INFO L85 PathProgramCache]: Analyzing trace with hash 476516110, now seen corresponding path program 1 times [2023-11-19 07:59:11,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:11,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208727949] [2023-11-19 07:59:11,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:11,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:59:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:59:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:59:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:59:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:59:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-19 07:59:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:59:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:59:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:59:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,375 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 07:59:12,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:12,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208727949] [2023-11-19 07:59:12,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208727949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:12,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:12,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:59:12,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159939865] [2023-11-19 07:59:12,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:12,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:59:12,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:12,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:59:12,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:59:12,386 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 07:59:12,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:12,610 INFO L93 Difference]: Finished difference Result 100 states and 139 transitions. [2023-11-19 07:59:12,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:59:12,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 63 [2023-11-19 07:59:12,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:12,619 INFO L225 Difference]: With dead ends: 100 [2023-11-19 07:59:12,620 INFO L226 Difference]: Without dead ends: 68 [2023-11-19 07:59:12,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:59:12,623 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 51 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:12,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 150 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:59:12,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-19 07:59:12,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 56. [2023-11-19 07:59:12,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 states have internal predecessors, (41), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:59:12,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2023-11-19 07:59:12,653 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 63 [2023-11-19 07:59:12,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:12,657 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2023-11-19 07:59:12,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 07:59:12,658 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2023-11-19 07:59:12,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:59:12,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:12,666 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:12,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:59:12,668 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:12,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:12,669 INFO L85 PathProgramCache]: Analyzing trace with hash -627591792, now seen corresponding path program 1 times [2023-11-19 07:59:12,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:12,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355870891] [2023-11-19 07:59:12,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:12,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:59:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:59:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:59:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:59:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:59:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-19 07:59:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:59:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:59:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:59:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:12,769 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 07:59:12,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:12,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355870891] [2023-11-19 07:59:12,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355870891] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:12,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:12,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:59:12,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285533027] [2023-11-19 07:59:12,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:12,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:12,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:12,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:12,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:12,772 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 07:59:12,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:12,802 INFO L93 Difference]: Finished difference Result 99 states and 135 transitions. [2023-11-19 07:59:12,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:12,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64 [2023-11-19 07:59:12,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:12,804 INFO L225 Difference]: With dead ends: 99 [2023-11-19 07:59:12,805 INFO L226 Difference]: Without dead ends: 67 [2023-11-19 07:59:12,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:12,807 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 13 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:12,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 95 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:59:12,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-19 07:59:12,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 57. [2023-11-19 07:59:12,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 36 states have internal predecessors, (42), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:59:12,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 78 transitions. [2023-11-19 07:59:12,822 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 78 transitions. Word has length 64 [2023-11-19 07:59:12,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:12,822 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 78 transitions. [2023-11-19 07:59:12,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 07:59:12,823 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 78 transitions. [2023-11-19 07:59:12,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:59:12,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:12,825 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:12,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:59:12,826 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:12,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:12,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1436938418, now seen corresponding path program 1 times [2023-11-19 07:59:12,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:12,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550134690] [2023-11-19 07:59:12,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:12,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:12,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:59:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:59:13,003 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:59:13,004 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:59:13,005 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:59:13,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:59:13,011 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 07:59:13,017 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:59:13,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:59:13 BoogieIcfgContainer [2023-11-19 07:59:13,086 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:59:13,086 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:59:13,086 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:59:13,087 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:59:13,087 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:10" (3/4) ... [2023-11-19 07:59:13,090 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:59:13,091 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:59:13,092 INFO L158 Benchmark]: Toolchain (without parser) took 3111.93ms. Allocated memory was 172.0MB in the beginning and 224.4MB in the end (delta: 52.4MB). Free memory was 123.6MB in the beginning and 106.6MB in the end (delta: 17.0MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. [2023-11-19 07:59:13,092 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 104.9MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:13,093 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.31ms. Allocated memory is still 172.0MB. Free memory was 123.6MB in the beginning and 111.6MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:59:13,093 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.60ms. Allocated memory is still 172.0MB. Free memory was 111.6MB in the beginning and 109.0MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:13,094 INFO L158 Benchmark]: Boogie Preprocessor took 31.26ms. Allocated memory is still 172.0MB. Free memory was 109.0MB in the beginning and 107.4MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:59:13,094 INFO L158 Benchmark]: RCFGBuilder took 512.99ms. Allocated memory is still 172.0MB. Free memory was 107.4MB in the beginning and 92.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:59:13,095 INFO L158 Benchmark]: TraceAbstraction took 2168.95ms. Allocated memory was 172.0MB in the beginning and 224.4MB in the end (delta: 52.4MB). Free memory was 92.2MB in the beginning and 107.6MB in the end (delta: -15.4MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2023-11-19 07:59:13,095 INFO L158 Benchmark]: Witness Printer took 4.48ms. Allocated memory is still 224.4MB. Free memory was 107.6MB in the beginning and 106.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:13,098 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 104.9MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.31ms. Allocated memory is still 172.0MB. Free memory was 123.6MB in the beginning and 111.6MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.60ms. Allocated memory is still 172.0MB. Free memory was 111.6MB in the beginning and 109.0MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.26ms. Allocated memory is still 172.0MB. Free memory was 109.0MB in the beginning and 107.4MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 512.99ms. Allocated memory is still 172.0MB. Free memory was 107.4MB in the beginning and 92.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2168.95ms. Allocated memory was 172.0MB in the beginning and 224.4MB in the end (delta: 52.4MB). Free memory was 92.2MB in the beginning and 107.6MB in the end (delta: -15.4MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. * Witness Printer took 4.48ms. Allocated memory is still 224.4MB. Free memory was 107.6MB in the beginning and 106.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someUnaryDOUBLEoperation at line 24. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 5.5; [L23] unsigned char var_1_6 = 1; [L24] double var_1_7 = -0.41; [L25] unsigned char var_1_8 = 25; [L26] unsigned char var_1_9 = 100; [L27] unsigned char var_1_10 = 1; [L28] unsigned char var_1_12 = 10; [L29] signed short int var_1_13 = -64; [L30] signed long int var_1_14 = 10; [L31] signed short int var_1_15 = -1; [L32] unsigned char last_1_var_1_8 = 25; [L33] signed long int last_1_var_1_14 = 10; VAL [isInitial=0, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L85] isInitial = 1 [L86] FCALL initially() [L87] COND TRUE 1 [L88] CALL updateLastVariables() [L77] last_1_var_1_8 = var_1_8 [L78] last_1_var_1_14 = var_1_14 VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L88] RET updateLastVariables() [L89] CALL updateVariables() [L61] var_1_6 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_8=25, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_8=25, var_1_9=100] [L62] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_8=25, var_1_9=100] [L63] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L63] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L64] var_1_7 = __VERIFIER_nondet_double() [L65] CALL assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=100] [L65] RET assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=100] [L66] var_1_9 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L67] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L68] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L68] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L69] var_1_10 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L70] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L71] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L71] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L72] var_1_12 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=253, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=253, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L73] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=253, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L74] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=253, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=253, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L74] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=253, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L89] RET updateVariables() [L90] CALL step() [L37] signed long int stepLocal_0 = (((last_1_var_1_8) > ((last_1_var_1_14 + last_1_var_1_14))) ? (last_1_var_1_8) : ((last_1_var_1_14 + last_1_var_1_14))); VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, stepLocal_0=25, var_1_10=254, var_1_12=253, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L38] COND TRUE last_1_var_1_14 <= stepLocal_0 VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, stepLocal_0=25, var_1_10=254, var_1_12=253, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L39] COND FALSE !(! var_1_6) [L42] var_1_1 = var_1_7 VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, stepLocal_0=25, var_1_10=254, var_1_12=253, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=770, var_1_6=1, var_1_7=770, var_1_8=25, var_1_9=254] [L45] COND TRUE \read(var_1_6) [L46] var_1_8 = ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, stepLocal_0=25, var_1_10=254, var_1_12=253, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=770, var_1_6=1, var_1_7=770, var_1_8=254, var_1_9=254] [L52] COND TRUE (9.99999999999995E13f + var_1_1) >= var_1_1 [L53] var_1_13 = (-4 + var_1_10) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, stepLocal_0=25, var_1_10=254, var_1_12=253, var_1_13=250, var_1_14=10, var_1_15=-1, var_1_1=770, var_1_6=1, var_1_7=770, var_1_8=254, var_1_9=254] [L57] var_1_15 = var_1_12 [L58] var_1_14 = var_1_15 VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, stepLocal_0=25, var_1_10=254, var_1_12=253, var_1_13=250, var_1_14=253, var_1_15=253, var_1_1=770, var_1_6=1, var_1_7=770, var_1_8=254, var_1_9=254] [L90] RET step() [L91] CALL, EXPR property() [L81-L82] return (((((last_1_var_1_14 <= ((((last_1_var_1_8) > ((last_1_var_1_14 + last_1_var_1_14))) ? (last_1_var_1_8) : ((last_1_var_1_14 + last_1_var_1_14))))) ? ((! var_1_6) ? (var_1_1 == ((double) var_1_7)) : (var_1_1 == ((double) var_1_7))) : 1) && (var_1_6 ? (var_1_8 == ((unsigned char) ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))))) : ((var_1_1 < (var_1_1 + var_1_7)) ? (var_1_8 == ((unsigned char) var_1_12)) : 1))) && (((9.99999999999995E13f + var_1_1) >= var_1_1) ? (var_1_13 == ((signed short int) (-4 + var_1_10))) : (var_1_13 == ((signed short int) (((((var_1_9) < (8)) ? (var_1_9) : (8))) - 32))))) && (var_1_14 == ((signed long int) var_1_15))) && (var_1_15 == ((signed short int) var_1_12)) ; VAL [\result=0, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=253, var_1_13=250, var_1_14=253, var_1_15=253, var_1_1=770, var_1_6=1, var_1_7=770, var_1_8=254, var_1_9=254] [L91] RET, EXPR property() [L91] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=253, var_1_13=250, var_1_14=253, var_1_15=253, var_1_1=770, var_1_6=1, var_1_7=770, var_1_8=254, var_1_9=254] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=253, var_1_13=250, var_1_14=253, var_1_15=253, var_1_1=770, var_1_6=1, var_1_7=770, var_1_8=254, var_1_9=254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 293 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 144 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 149 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=3, InterpolantAutomatonStates: 11, 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, 3 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 432/432 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 07:59:13,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-73.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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_a4a74416-737c-4eee-8aa6-19916fefe17e/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 2d76b174fceab1b4f0b7c723c11189a89dfae9fb8b439d670404c7bcb817a6a0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:59:15,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:59:16,098 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:59:16,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:59:16,108 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:59:16,154 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:59:16,155 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:59:16,155 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:59:16,157 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:59:16,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:59:16,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:59:16,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:59:16,164 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:59:16,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:59:16,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:59:16,167 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:59:16,167 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:59:16,168 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:59:16,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:59:16,169 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:59:16,169 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:59:16,170 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:59:16,170 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:59:16,171 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:59:16,171 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:59:16,172 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:59:16,172 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:59:16,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:59:16,173 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:59:16,173 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:59:16,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:16,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:59:16,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:59:16,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:59:16,176 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:59:16,177 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:59:16,177 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:59:16,177 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:59:16,178 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:59:16,179 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:59:16,179 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:59:16,180 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:59:16,180 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_a4a74416-737c-4eee-8aa6-19916fefe17e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d76b174fceab1b4f0b7c723c11189a89dfae9fb8b439d670404c7bcb817a6a0 [2023-11-19 07:59:16,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:59:16,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:59:16,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:59:16,664 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:59:16,664 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:59:16,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-73.i [2023-11-19 07:59:19,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:59:20,217 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:59:20,218 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-73.i [2023-11-19 07:59:20,227 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/data/4705f2641/de0f608330f64f7ca35cd6ef8fa7b909/FLAG6b51520b1 [2023-11-19 07:59:20,240 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/data/4705f2641/de0f608330f64f7ca35cd6ef8fa7b909 [2023-11-19 07:59:20,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:59:20,244 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:59:20,245 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:20,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:59:20,258 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:59:20,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63edbf48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20, skipping insertion in model container [2023-11-19 07:59:20,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,288 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:59:20,444 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_a4a74416-737c-4eee-8aa6-19916fefe17e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-73.i[915,928] [2023-11-19 07:59:20,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:20,512 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:59:20,529 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_a4a74416-737c-4eee-8aa6-19916fefe17e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-73.i[915,928] [2023-11-19 07:59:20,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:20,582 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:59:20,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20 WrapperNode [2023-11-19 07:59:20,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:20,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:20,584 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:59:20,585 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:59:20,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,603 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,637 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 86 [2023-11-19 07:59:20,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:20,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:59:20,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:59:20,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:59:20,649 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,664 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,668 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,673 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,677 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:59:20,678 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:59:20,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:59:20,679 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:59:20,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (1/1) ... [2023-11-19 07:59:20,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:20,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:20,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:20,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:59:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:59:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:59:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:59:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:59:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:59:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:59:20,841 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:59:20,844 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:59:23,204 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:59:23,213 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:59:23,213 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:59:23,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:23 BoogieIcfgContainer [2023-11-19 07:59:23,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:59:23,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:59:23,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:59:23,224 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:59:23,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:20" (1/3) ... [2023-11-19 07:59:23,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f5acdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:23, skipping insertion in model container [2023-11-19 07:59:23,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:20" (2/3) ... [2023-11-19 07:59:23,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f5acdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:23, skipping insertion in model container [2023-11-19 07:59:23,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:23" (3/3) ... [2023-11-19 07:59:23,232 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-73.i [2023-11-19 07:59:23,248 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:59:23,248 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:59:23,302 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:59:23,310 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;@31df0ddf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:59:23,311 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:59:23,317 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 28 states have internal predecessors, (37), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:59:23,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 07:59:23,332 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:23,334 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:23,337 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:23,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:23,344 INFO L85 PathProgramCache]: Analyzing trace with hash 715450892, now seen corresponding path program 1 times [2023-11-19 07:59:23,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:23,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708434337] [2023-11-19 07:59:23,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:23,361 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 07:59:23,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:23,364 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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 07:59:23,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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 07:59:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:23,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:59:23,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:23,860 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-19 07:59:23,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:23,864 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:23,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708434337] [2023-11-19 07:59:23,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [708434337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:23,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:23,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:23,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535105530] [2023-11-19 07:59:23,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:23,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:59:23,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:23,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:59:23,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:59:23,922 INFO L87 Difference]: Start difference. First operand has 39 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 28 states have internal predecessors, (37), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 07:59:23,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:23,960 INFO L93 Difference]: Finished difference Result 71 states and 113 transitions. [2023-11-19 07:59:23,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:59:23,962 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2023-11-19 07:59:23,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:23,970 INFO L225 Difference]: With dead ends: 71 [2023-11-19 07:59:23,970 INFO L226 Difference]: Without dead ends: 35 [2023-11-19 07:59:23,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 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 07:59:23,976 INFO L413 NwaCegarLoop]: 48 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, 48 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 07:59:23,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:59:23,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-19 07:59:24,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-19 07:59:24,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:59:24,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2023-11-19 07:59:24,024 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 63 [2023-11-19 07:59:24,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:24,024 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2023-11-19 07:59:24,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 07:59:24,025 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2023-11-19 07:59:24,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 07:59:24,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:24,029 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:24,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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 07:59:24,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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 07:59:24,235 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:24,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:24,236 INFO L85 PathProgramCache]: Analyzing trace with hash 476516110, now seen corresponding path program 1 times [2023-11-19 07:59:24,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:24,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273072979] [2023-11-19 07:59:24,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:24,237 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 07:59:24,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:24,239 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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 07:59:24,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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 07:59:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:24,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:59:24,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:25,406 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 07:59:25,407 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:25,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:25,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273072979] [2023-11-19 07:59:25,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273072979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:25,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:25,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:59:25,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321200570] [2023-11-19 07:59:25,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:25,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:59:25,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:25,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:59:25,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:59:25,412 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 07:59:27,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:27,076 INFO L93 Difference]: Finished difference Result 102 states and 142 transitions. [2023-11-19 07:59:27,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:59:27,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 63 [2023-11-19 07:59:27,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:27,090 INFO L225 Difference]: With dead ends: 102 [2023-11-19 07:59:27,090 INFO L226 Difference]: Without dead ends: 70 [2023-11-19 07:59:27,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:59:27,092 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 46 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:27,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 151 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-19 07:59:27,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-19 07:59:27,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 56. [2023-11-19 07:59:27,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 states have internal predecessors, (41), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:59:27,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2023-11-19 07:59:27,117 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 63 [2023-11-19 07:59:27,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:27,118 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2023-11-19 07:59:27,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 07:59:27,119 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2023-11-19 07:59:27,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:59:27,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:27,121 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:27,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:27,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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 07:59:27,334 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:27,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:27,334 INFO L85 PathProgramCache]: Analyzing trace with hash -627591792, now seen corresponding path program 1 times [2023-11-19 07:59:27,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:27,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813385889] [2023-11-19 07:59:27,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:27,335 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 07:59:27,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:27,337 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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 07:59:27,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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 07:59:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:27,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:59:27,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:27,670 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 07:59:27,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:27,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:27,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813385889] [2023-11-19 07:59:27,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813385889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:27,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:27,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:59:27,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247569755] [2023-11-19 07:59:27,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:27,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:27,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:27,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:27,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:27,685 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 07:59:28,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:28,259 INFO L93 Difference]: Finished difference Result 99 states and 135 transitions. [2023-11-19 07:59:28,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:28,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64 [2023-11-19 07:59:28,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:28,262 INFO L225 Difference]: With dead ends: 99 [2023-11-19 07:59:28,262 INFO L226 Difference]: Without dead ends: 67 [2023-11-19 07:59:28,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:28,264 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 13 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:28,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 94 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:59:28,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-19 07:59:28,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 57. [2023-11-19 07:59:28,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 36 states have internal predecessors, (42), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:59:28,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 78 transitions. [2023-11-19 07:59:28,282 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 78 transitions. Word has length 64 [2023-11-19 07:59:28,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:28,283 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 78 transitions. [2023-11-19 07:59:28,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 07:59:28,283 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 78 transitions. [2023-11-19 07:59:28,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:59:28,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:28,285 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:28,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:28,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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 07:59:28,492 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:59:28,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:28,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1436938418, now seen corresponding path program 1 times [2023-11-19 07:59:28,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:28,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080409328] [2023-11-19 07:59:28,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:28,494 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 07:59:28,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:28,496 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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 07:59:28,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4a74416-737c-4eee-8aa6-19916fefe17e/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 (5)] Waiting until timeout for monitored process [2023-11-19 07:59:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:28,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 07:59:28,779 INFO L285 TraceCheckSpWp]: Computing forward predicates...