./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-2.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_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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 48b9052d7d3c65db9b48b4bf5f37001d35fe44050063cbacda5fa076149a356f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:35:56,534 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:35:56,605 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:35:56,611 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:35:56,612 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:35:56,636 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:35:56,637 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:35:56,638 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:35:56,638 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:35:56,639 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:35:56,640 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:35:56,644 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:35:56,644 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:35:56,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:35:56,646 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:35:56,646 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:35:56,647 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:35:56,652 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:35:56,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:35:56,653 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:35:56,653 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:35:56,654 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:35:56,655 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:35:56,655 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:35:56,658 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:35:56,659 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:35:56,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:35:56,660 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:35:56,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:35:56,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:35:56,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:35:56,663 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:35:56,663 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:35:56,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:35:56,664 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:35:56,664 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:35:56,665 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:35:56,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:35:56,665 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:35:56,665 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_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48b9052d7d3c65db9b48b4bf5f37001d35fe44050063cbacda5fa076149a356f [2023-11-19 07:35:56,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:35:56,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:35:56,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:35:56,952 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:35:56,952 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:35:56,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-2.i [2023-11-19 07:36:00,181 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:36:00,442 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:36:00,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-2.i [2023-11-19 07:36:00,461 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/data/66277a732/a2b2cb95dc224ef4a6153770836ef6b7/FLAG738edf296 [2023-11-19 07:36:00,477 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/data/66277a732/a2b2cb95dc224ef4a6153770836ef6b7 [2023-11-19 07:36:00,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:36:00,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:36:00,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:00,484 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:36:00,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:36:00,496 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:00" (1/1) ... [2023-11-19 07:36:00,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c85c4fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:00, skipping insertion in model container [2023-11-19 07:36:00,497 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:00" (1/1) ... [2023-11-19 07:36:00,532 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:36:00,725 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_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-2.i[914,927] [2023-11-19 07:36:00,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:00,830 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:36:00,849 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_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-2.i[914,927] [2023-11-19 07:36:00,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:00,912 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:36:00,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:00 WrapperNode [2023-11-19 07:36:00,913 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:00,914 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:00,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:36:00,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:36:00,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:00" (1/1) ... [2023-11-19 07:36:00,932 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:00" (1/1) ... [2023-11-19 07:36:00,965 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 122 [2023-11-19 07:36:00,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:00,966 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:36:00,966 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:36:00,967 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:36:00,976 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:00" (1/1) ... [2023-11-19 07:36:00,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:00" (1/1) ... [2023-11-19 07:36:00,979 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:00" (1/1) ... [2023-11-19 07:36:00,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:00" (1/1) ... [2023-11-19 07:36:00,988 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:00" (1/1) ... [2023-11-19 07:36:00,991 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:00" (1/1) ... [2023-11-19 07:36:00,994 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:00" (1/1) ... [2023-11-19 07:36:00,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:00" (1/1) ... [2023-11-19 07:36:00,999 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:36:01,000 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:36:01,000 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:36:01,000 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:36:01,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:00" (1/1) ... [2023-11-19 07:36:01,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:01,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:01,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:36:01,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:36:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:36:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:36:01,098 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:36:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:36:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:36:01,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:36:01,208 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:36:01,212 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:36:01,547 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:36:01,556 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:36:01,556 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:36:01,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:01 BoogieIcfgContainer [2023-11-19 07:36:01,560 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:36:01,563 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:36:01,564 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:36:01,567 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:36:01,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:36:00" (1/3) ... [2023-11-19 07:36:01,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208a218f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:01, skipping insertion in model container [2023-11-19 07:36:01,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:00" (2/3) ... [2023-11-19 07:36:01,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208a218f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:01, skipping insertion in model container [2023-11-19 07:36:01,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:01" (3/3) ... [2023-11-19 07:36:01,571 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-2.i [2023-11-19 07:36:01,595 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:36:01,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:36:01,656 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:36:01,664 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;@79a5722, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:36:01,665 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:36:01,670 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:36:01,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 07:36:01,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:01,683 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:01,684 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:36:01,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:01,690 INFO L85 PathProgramCache]: Analyzing trace with hash -2140347050, now seen corresponding path program 1 times [2023-11-19 07:36:01,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:01,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957328108] [2023-11-19 07:36:01,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:01,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:01,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:01,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957328108] [2023-11-19 07:36:01,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:36:01,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182673341] [2023-11-19 07:36:01,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:01,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:01,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:01,915 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:01,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:36:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:02,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:36:02,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:02,131 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-19 07:36:02,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:02,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182673341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:02,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:02,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:02,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724551352] [2023-11-19 07:36:02,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:02,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:36:02,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:02,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:36:02,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:36:02,200 INFO L87 Difference]: Start difference. First operand has 53 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:36:02,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:02,234 INFO L93 Difference]: Finished difference Result 99 states and 163 transitions. [2023-11-19 07:36:02,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:36:02,236 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 91 [2023-11-19 07:36:02,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:02,244 INFO L225 Difference]: With dead ends: 99 [2023-11-19 07:36:02,244 INFO L226 Difference]: Without dead ends: 49 [2023-11-19 07:36:02,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 90 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 07:36:02,252 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:02,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:36:02,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-19 07:36:02,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-19 07:36:02,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:36:02,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 69 transitions. [2023-11-19 07:36:02,299 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 69 transitions. Word has length 91 [2023-11-19 07:36:02,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:02,300 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 69 transitions. [2023-11-19 07:36:02,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 07:36:02,301 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 69 transitions. [2023-11-19 07:36:02,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-19 07:36:02,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:02,306 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:02,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 07:36:02,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:36:02,513 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:36:02,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:02,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1331715252, now seen corresponding path program 1 times [2023-11-19 07:36:02,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:02,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320029592] [2023-11-19 07:36:02,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:02,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:02,650 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:02,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1177023510] [2023-11-19 07:36:02,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:02,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:02,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:02,657 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:02,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:36:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:02,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:36:02,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:03,247 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 147 proven. 9 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-19 07:36:03,247 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:36:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 27 proven. 9 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-11-19 07:36:03,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:03,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320029592] [2023-11-19 07:36:03,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:03,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177023510] [2023-11-19 07:36:03,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177023510] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:36:03,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:36:03,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-19 07:36:03,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438202246] [2023-11-19 07:36:03,889 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:36:03,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:36:03,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:03,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:36:03,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:36:03,894 INFO L87 Difference]: Start difference. First operand 49 states and 69 transitions. Second operand has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 5 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-19 07:36:04,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:04,361 INFO L93 Difference]: Finished difference Result 123 states and 170 transitions. [2023-11-19 07:36:04,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:36:04,362 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 5 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) Word has length 92 [2023-11-19 07:36:04,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:04,365 INFO L225 Difference]: With dead ends: 123 [2023-11-19 07:36:04,366 INFO L226 Difference]: Without dead ends: 77 [2023-11-19 07:36:04,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=113, Invalid=193, Unknown=0, NotChecked=0, Total=306 [2023-11-19 07:36:04,369 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 78 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:04,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 176 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:36:04,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-19 07:36:04,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 74. [2023-11-19 07:36:04,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 49 states have internal predecessors, (56), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 07:36:04,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 100 transitions. [2023-11-19 07:36:04,392 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 100 transitions. Word has length 92 [2023-11-19 07:36:04,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:04,393 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 100 transitions. [2023-11-19 07:36:04,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 5 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-19 07:36:04,394 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 100 transitions. [2023-11-19 07:36:04,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-19 07:36:04,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:04,398 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:04,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:04,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:04,620 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:36:04,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:04,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1161227543, now seen corresponding path program 1 times [2023-11-19 07:36:04,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:04,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527856374] [2023-11-19 07:36:04,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:04,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:04,687 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:04,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [65312641] [2023-11-19 07:36:04,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:04,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:04,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:04,697 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:04,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:36:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:36:04,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:36:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:36:04,959 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:36:04,961 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:36:04,962 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:36:04,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:05,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:05,184 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:36:05,188 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:36:05,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:36:05 BoogieIcfgContainer [2023-11-19 07:36:05,307 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:36:05,308 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:36:05,308 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:36:05,308 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:36:05,309 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:01" (3/4) ... [2023-11-19 07:36:05,313 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:36:05,314 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:36:05,315 INFO L158 Benchmark]: Toolchain (without parser) took 4832.90ms. Allocated memory is still 163.6MB. Free memory was 125.4MB in the beginning and 96.9MB in the end (delta: 28.5MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2023-11-19 07:36:05,315 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory was 65.2MB in the beginning and 64.8MB in the end (delta: 321.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:36:05,316 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.90ms. Allocated memory is still 163.6MB. Free memory was 124.9MB in the beginning and 111.4MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:36:05,316 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.66ms. Allocated memory is still 163.6MB. Free memory was 111.4MB in the beginning and 109.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:36:05,317 INFO L158 Benchmark]: Boogie Preprocessor took 32.76ms. Allocated memory is still 163.6MB. Free memory was 109.4MB in the beginning and 107.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:36:05,317 INFO L158 Benchmark]: RCFGBuilder took 560.74ms. Allocated memory is still 163.6MB. Free memory was 107.3MB in the beginning and 91.8MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:36:05,318 INFO L158 Benchmark]: TraceAbstraction took 3743.98ms. Allocated memory is still 163.6MB. Free memory was 90.5MB in the beginning and 97.9MB in the end (delta: -7.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:36:05,318 INFO L158 Benchmark]: Witness Printer took 5.83ms. Allocated memory is still 163.6MB. Free memory was 97.9MB in the beginning and 96.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:36:05,321 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory was 65.2MB in the beginning and 64.8MB in the end (delta: 321.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 429.90ms. Allocated memory is still 163.6MB. Free memory was 124.9MB in the beginning and 111.4MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.66ms. Allocated memory is still 163.6MB. Free memory was 111.4MB in the beginning and 109.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.76ms. Allocated memory is still 163.6MB. Free memory was 109.4MB in the beginning and 107.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 560.74ms. Allocated memory is still 163.6MB. Free memory was 107.3MB in the beginning and 91.8MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3743.98ms. Allocated memory is still 163.6MB. Free memory was 90.5MB in the beginning and 97.9MB in the end (delta: -7.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.83ms. Allocated memory is still 163.6MB. Free memory was 97.9MB in the beginning and 96.9MB 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 someBinaryFLOATComparisonOperation at line 117, overapproximation of someBinaryDOUBLEComparisonOperation at line 117, overapproximation of someBinaryArithmeticDOUBLEoperation at line 86. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 3.95; [L23] float var_1_4 = 9999999.8; [L24] float var_1_5 = 8.6; [L25] unsigned long int var_1_6 = 10000; [L26] double var_1_8 = 64.5; [L27] float var_1_10 = 255.25; [L28] float var_1_11 = 7.5; [L29] float var_1_12 = 0.0; [L30] float var_1_13 = 64.8; [L31] double var_1_14 = 127.75; [L32] signed char var_1_15 = 8; [L33] signed char var_1_16 = 32; [L34] unsigned char var_1_17 = 0; [L35] unsigned char var_1_18 = 0; [L36] double var_1_19 = 2.25; [L37] unsigned char var_1_20 = 0; [L38] unsigned short int var_1_21 = 256; [L39] unsigned long int last_1_var_1_6 = 10000; VAL [isInitial=0, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_4=49999999/5, var_1_5=43/5, var_1_6=10000, var_1_8=129/2] [L121] isInitial = 1 [L122] FCALL initially() [L123] COND TRUE 1 [L124] CALL updateLastVariables() [L114] last_1_var_1_6 = var_1_6 VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_4=49999999/5, var_1_5=43/5, var_1_6=10000, var_1_8=129/2] [L124] RET updateLastVariables() [L125] CALL updateVariables() [L90] var_1_4 = __VERIFIER_nondet_float() [L91] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=43/5, var_1_6=10000, var_1_8=129/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=43/5, var_1_6=10000, var_1_8=129/2] [L91] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=43/5, var_1_6=10000, var_1_8=129/2] [L92] var_1_5 = __VERIFIER_nondet_float() [L93] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=129/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=129/2] [L93] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=129/2] [L94] var_1_8 = __VERIFIER_nondet_double() [L95] CALL assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L95] RET assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=15/2, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L96] var_1_11 = __VERIFIER_nondet_float() [L97] CALL assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L97] RET assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L98] CALL assume_abort_if_not(var_1_11 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L98] RET assume_abort_if_not(var_1_11 != 0.0F) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=0, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L99] var_1_12 = __VERIFIER_nondet_float() [L100] CALL assume_abort_if_not((var_1_12 >= 4611686.018427382800e+12F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L100] RET assume_abort_if_not((var_1_12 >= 4611686.018427382800e+12F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=324/5, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L101] var_1_13 = __VERIFIER_nondet_float() [L102] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L102] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=8, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L103] var_1_15 = __VERIFIER_nondet_char() [L104] CALL assume_abort_if_not(var_1_15 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L104] RET assume_abort_if_not(var_1_15 >= -1) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L105] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L105] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=32, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L106] var_1_16 = __VERIFIER_nondet_char() [L107] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L107] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L108] CALL assume_abort_if_not(var_1_16 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L108] RET assume_abort_if_not(var_1_16 <= 127) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L109] var_1_18 = __VERIFIER_nondet_uchar() [L110] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L110] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L111] CALL assume_abort_if_not(var_1_18 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L111] RET assume_abort_if_not(var_1_18 <= 0) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=511/4, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L125] RET updateVariables() [L126] CALL step() [L43] COND TRUE (var_1_15 - ((((0) < (var_1_16)) ? (0) : (var_1_16)))) > last_1_var_1_6 [L44] var_1_14 = var_1_12 VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=1021/4, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L46] COND FALSE !((var_1_5 / var_1_11) >= (var_1_8 - var_1_4)) [L49] var_1_10 = 4.2f VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=21/5, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=0, var_1_21=256, var_1_5=2, var_1_6=10000, var_1_8=3] [L51] var_1_20 = var_1_16 [L52] var_1_21 = var_1_16 VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=21/5, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=1, var_1_21=1, var_1_5=2, var_1_6=10000, var_1_8=3] [L53] COND TRUE var_1_21 <= (var_1_16 * var_1_20) VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=21/5, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=1, var_1_21=1, var_1_5=2, var_1_6=10000, var_1_8=3] [L54] COND TRUE (var_1_5 + var_1_14) <= 127.025f [L55] var_1_17 = var_1_18 VAL [isInitial=1, last_1_var_1_6=10000, var_1_10=21/5, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=1, var_1_21=1, var_1_5=2, var_1_6=10000, var_1_8=3] [L62] unsigned char stepLocal_0 = var_1_20 != var_1_20; VAL [isInitial=1, last_1_var_1_6=10000, stepLocal_0=0, var_1_10=21/5, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=1, var_1_21=1, var_1_5=2, var_1_6=10000, var_1_8=3] [L63] COND FALSE !(\read(var_1_17)) [L74] var_1_6 = var_1_20 VAL [isInitial=1, last_1_var_1_6=10000, stepLocal_0=0, var_1_10=21/5, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=1, var_1_21=1, var_1_5=2, var_1_6=1, var_1_8=3] [L76] COND TRUE var_1_6 <= var_1_6 VAL [isInitial=1, last_1_var_1_6=10000, stepLocal_0=0, var_1_10=21/5, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=79/20, var_1_20=1, var_1_21=1, var_1_5=2, var_1_6=1, var_1_8=3] [L77] COND FALSE !(var_1_6 > var_1_6) [L80] var_1_1 = var_1_5 VAL [isInitial=1, last_1_var_1_6=10000, stepLocal_0=0, var_1_10=21/5, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=9/4, var_1_1=2, var_1_20=1, var_1_21=1, var_1_5=2, var_1_6=1, var_1_8=3] [L85] COND TRUE var_1_1 < var_1_11 [L86] var_1_19 = (var_1_13 - 256.4) VAL [isInitial=1, last_1_var_1_6=10000, stepLocal_0=0, var_1_10=21/5, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_1=2, var_1_20=1, var_1_21=1, var_1_5=2, var_1_6=1, var_1_8=3] [L126] RET step() [L127] CALL, EXPR property() [L117-L118] return ((((((((var_1_6 <= var_1_6) ? ((var_1_6 > var_1_6) ? (var_1_1 == ((float) (var_1_4 - var_1_5))) : (var_1_1 == ((float) var_1_5))) : (var_1_1 == ((float) var_1_4))) && (var_1_17 ? ((((((var_1_14) > (((((var_1_5) > (199.78)) ? (var_1_5) : (199.78))))) ? (var_1_14) : (((((var_1_5) > (199.78)) ? (var_1_5) : (199.78)))))) != (var_1_4 - var_1_8)) ? (((var_1_20 != var_1_20) || var_1_17) ? (var_1_6 == ((unsigned long int) var_1_20)) : (var_1_6 == ((unsigned long int) 5u))) : (var_1_6 == ((unsigned long int) var_1_20))) : (var_1_6 == ((unsigned long int) var_1_20)))) && (((var_1_5 / var_1_11) >= (var_1_8 - var_1_4)) ? (var_1_10 == ((float) (((((var_1_5 - (var_1_12 - var_1_13))) < (var_1_4)) ? ((var_1_5 - (var_1_12 - var_1_13))) : (var_1_4))))) : (var_1_10 == ((float) 4.2f)))) && (((var_1_15 - ((((0) < (var_1_16)) ? (0) : (var_1_16)))) > last_1_var_1_6) ? (var_1_14 == ((double) var_1_12)) : 1)) && ((var_1_21 <= (var_1_16 * var_1_20)) ? (((var_1_5 + var_1_14) <= 127.025f) ? (var_1_17 == ((unsigned char) var_1_18)) : (var_1_17 == ((unsigned char) var_1_18))) : (var_1_17 == ((unsigned char) var_1_18)))) && ((var_1_1 < var_1_11) ? (var_1_19 == ((double) (var_1_13 - 256.4))) : 1)) && (var_1_20 == ((unsigned char) var_1_16))) && (var_1_21 == ((unsigned short int) var_1_16)) ; VAL [\result=0, isInitial=1, last_1_var_1_6=10000, var_1_10=21/5, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_1=2, var_1_20=1, var_1_21=1, var_1_5=2, var_1_6=1, var_1_8=3] [L127] RET, EXPR property() [L127] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_6=10000, var_1_10=21/5, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_1=2, var_1_20=1, var_1_21=1, var_1_5=2, var_1_6=1, var_1_8=3] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_6=10000, var_1_10=21/5, var_1_11=4, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=-1, var_1_16=1, var_1_17=0, var_1_18=0, var_1_1=2, var_1_20=1, var_1_21=1, var_1_5=2, var_1_6=1, var_1_8=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 96 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 245 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 110 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 224 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 135 mSDtfsCounter, 224 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 278 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 367 NumberOfCodeBlocks, 367 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 272 ConstructedInterpolants, 0 QuantifiedInterpolants, 593 SizeOfPredicates, 4 NumberOfNonLiveVariables, 476 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 918/936 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 07:36:05,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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 48b9052d7d3c65db9b48b4bf5f37001d35fe44050063cbacda5fa076149a356f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:36:08,178 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:36:08,263 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:36:08,269 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:36:08,270 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:36:08,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:36:08,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:36:08,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:36:08,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:36:08,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:36:08,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:36:08,302 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:36:08,302 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:36:08,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:36:08,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:36:08,304 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:36:08,305 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:36:08,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:36:08,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:36:08,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:36:08,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:36:08,308 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:36:08,308 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:36:08,308 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:36:08,309 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:36:08,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:36:08,310 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:36:08,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:36:08,311 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:36:08,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:36:08,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:08,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:36:08,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:36:08,313 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:36:08,313 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:36:08,313 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:36:08,314 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:36:08,314 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:36:08,314 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:36:08,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:36:08,315 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:36:08,315 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:36:08,315 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_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48b9052d7d3c65db9b48b4bf5f37001d35fe44050063cbacda5fa076149a356f [2023-11-19 07:36:08,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:36:08,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:36:08,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:36:08,772 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:36:08,773 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:36:08,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-2.i [2023-11-19 07:36:12,173 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:36:12,481 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:36:12,481 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-2.i [2023-11-19 07:36:12,495 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/data/f2a53ebde/0d0ae1fbeae9490b91e288d64bbcb0ea/FLAG0e6a9fb10 [2023-11-19 07:36:12,514 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/data/f2a53ebde/0d0ae1fbeae9490b91e288d64bbcb0ea [2023-11-19 07:36:12,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:36:12,522 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:36:12,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:12,528 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:36:12,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:36:12,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:12" (1/1) ... [2023-11-19 07:36:12,537 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d35918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:12, skipping insertion in model container [2023-11-19 07:36:12,537 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:12" (1/1) ... [2023-11-19 07:36:12,582 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:36:12,788 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_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-2.i[914,927] [2023-11-19 07:36:12,870 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:12,888 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:36:12,902 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_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-2.i[914,927] [2023-11-19 07:36:12,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:12,974 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:36:12,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:12 WrapperNode [2023-11-19 07:36:12,975 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:12,976 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:12,976 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:36:12,976 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:36:12,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:12" (1/1) ... [2023-11-19 07:36:13,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:12" (1/1) ... [2023-11-19 07:36:13,059 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 120 [2023-11-19 07:36:13,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:13,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:36:13,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:36:13,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:36:13,078 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:12" (1/1) ... [2023-11-19 07:36:13,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:12" (1/1) ... [2023-11-19 07:36:13,092 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:12" (1/1) ... [2023-11-19 07:36:13,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:12" (1/1) ... [2023-11-19 07:36:13,103 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:12" (1/1) ... [2023-11-19 07:36:13,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:12" (1/1) ... [2023-11-19 07:36:13,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:12" (1/1) ... [2023-11-19 07:36:13,112 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:12" (1/1) ... [2023-11-19 07:36:13,117 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:36:13,147 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:36:13,147 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:36:13,147 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:36:13,148 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:12" (1/1) ... [2023-11-19 07:36:13,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:13,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:13,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:36:13,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:36:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:36:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:36:13,270 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:36:13,270 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:36:13,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:36:13,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:36:13,402 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:36:13,405 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:36:23,440 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:36:23,448 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:36:23,451 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:36:23,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:23 BoogieIcfgContainer [2023-11-19 07:36:23,455 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:36:23,458 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:36:23,458 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:36:23,462 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:36:23,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:36:12" (1/3) ... [2023-11-19 07:36:23,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dda7213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:23, skipping insertion in model container [2023-11-19 07:36:23,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:12" (2/3) ... [2023-11-19 07:36:23,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dda7213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:23, skipping insertion in model container [2023-11-19 07:36:23,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:23" (3/3) ... [2023-11-19 07:36:23,468 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-2.i [2023-11-19 07:36:23,490 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:36:23,490 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:36:23,567 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:36:23,575 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;@29140966, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:36:23,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:36:23,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:36:23,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 07:36:23,598 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:23,599 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:23,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:36:23,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:23,610 INFO L85 PathProgramCache]: Analyzing trace with hash -2140347050, now seen corresponding path program 1 times [2023-11-19 07:36:23,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:36:23,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905446756] [2023-11-19 07:36:23,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:23,629 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 07:36:23,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:36:23,636 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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 07:36:23,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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 07:36:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:24,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:36:24,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:24,731 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-19 07:36:24,732 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:24,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:36:24,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905446756] [2023-11-19 07:36:24,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905446756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:24,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:24,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:24,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902121503] [2023-11-19 07:36:24,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:24,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:36:24,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:36:24,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:36:24,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:36:24,774 INFO L87 Difference]: Start difference. First operand has 53 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-19 07:36:24,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:24,804 INFO L93 Difference]: Finished difference Result 99 states and 163 transitions. [2023-11-19 07:36:24,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:36:24,806 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2023-11-19 07:36:24,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:24,815 INFO L225 Difference]: With dead ends: 99 [2023-11-19 07:36:24,815 INFO L226 Difference]: Without dead ends: 49 [2023-11-19 07:36:24,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 90 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 07:36:24,823 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:24,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:36:24,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-19 07:36:24,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-19 07:36:24,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:36:24,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 69 transitions. [2023-11-19 07:36:24,871 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 69 transitions. Word has length 91 [2023-11-19 07:36:24,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:24,872 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 69 transitions. [2023-11-19 07:36:24,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-19 07:36:24,872 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 69 transitions. [2023-11-19 07:36:24,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-19 07:36:24,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:24,877 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:24,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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 07:36:25,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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 07:36:25,079 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:36:25,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:25,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1331715252, now seen corresponding path program 1 times [2023-11-19 07:36:25,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:36:25,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53735415] [2023-11-19 07:36:25,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:25,082 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 07:36:25,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:36:25,083 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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 07:36:25,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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 07:36:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:25,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:36:25,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 138 proven. 9 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-11-19 07:36:26,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:36:27,528 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 27 proven. 9 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-11-19 07:36:27,529 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:36:27,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53735415] [2023-11-19 07:36:27,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53735415] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:36:27,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:36:27,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-19 07:36:27,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408894919] [2023-11-19 07:36:27,531 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:36:27,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:36:27,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:36:27,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:36:27,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:36:27,535 INFO L87 Difference]: Start difference. First operand 49 states and 69 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 07:36:30,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:36:32,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:36:34,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:36:36,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:36:37,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:37,398 INFO L93 Difference]: Finished difference Result 125 states and 172 transitions. [2023-11-19 07:36:37,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:36:37,401 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 92 [2023-11-19 07:36:37,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:37,404 INFO L225 Difference]: With dead ends: 125 [2023-11-19 07:36:37,404 INFO L226 Difference]: Without dead ends: 79 [2023-11-19 07:36:37,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:36:37,407 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 129 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 41 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:37,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 160 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 172 Invalid, 3 Unknown, 0 Unchecked, 9.4s Time] [2023-11-19 07:36:37,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-19 07:36:37,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 74. [2023-11-19 07:36:37,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 49 states have internal predecessors, (56), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 07:36:37,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 100 transitions. [2023-11-19 07:36:37,450 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 100 transitions. Word has length 92 [2023-11-19 07:36:37,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:37,452 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 100 transitions. [2023-11-19 07:36:37,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 07:36:37,453 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 100 transitions. [2023-11-19 07:36:37,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-19 07:36:37,455 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:37,455 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:37,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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 07:36:37,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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 07:36:37,656 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:36:37,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:37,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1161227543, now seen corresponding path program 1 times [2023-11-19 07:36:37,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:36:37,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728501250] [2023-11-19 07:36:37,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:37,658 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 07:36:37,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:36:37,659 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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 07:36:37,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a95fc90-30e5-4fe9-b5b2-6da757ce095e/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 07:36:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:38,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-19 07:36:38,614 INFO L285 TraceCheckSpWp]: Computing forward predicates...