./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_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_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/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_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/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_63604aff-aff7-42c8-975b-547746d8c5b0/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 367edc47af4ec003a96fd86b04464a3d0c779fcc885147096dbe680589605201 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:49:11,427 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:49:11,531 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:49:11,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:49:11,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:49:11,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:49:11,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:49:11,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:49:11,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:49:11,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:49:11,583 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:49:11,583 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:49:11,584 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:49:11,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:49:11,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:49:11,586 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:49:11,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:49:11,587 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:49:11,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:49:11,588 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:49:11,588 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:49:11,589 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:49:11,591 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:49:11,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:49:11,591 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:49:11,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:49:11,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:49:11,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:49:11,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:11,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:49:11,596 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:49:11,603 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:49:11,604 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:49:11,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:49:11,604 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:49:11,605 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:49:11,605 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:49:11,605 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:49:11,605 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:49:11,606 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_63604aff-aff7-42c8-975b-547746d8c5b0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 367edc47af4ec003a96fd86b04464a3d0c779fcc885147096dbe680589605201 [2023-11-19 07:49:11,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:49:11,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:49:11,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:49:11,960 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:49:11,961 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:49:11,962 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-2.i [2023-11-19 07:49:15,134 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:49:15,430 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:49:15,431 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-2.i [2023-11-19 07:49:15,442 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/data/19f5504fa/3e48101c237e4b6a838b959545ebd1a9/FLAGf3b61c2ba [2023-11-19 07:49:15,461 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/data/19f5504fa/3e48101c237e4b6a838b959545ebd1a9 [2023-11-19 07:49:15,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:49:15,469 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:49:15,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:15,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:49:15,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:49:15,486 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:15" (1/1) ... [2023-11-19 07:49:15,487 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f92a966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:15, skipping insertion in model container [2023-11-19 07:49:15,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:15" (1/1) ... [2023-11-19 07:49:15,530 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:49:15,740 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_63604aff-aff7-42c8-975b-547746d8c5b0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-2.i[916,929] [2023-11-19 07:49:15,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:15,839 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:49:15,856 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_63604aff-aff7-42c8-975b-547746d8c5b0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-2.i[916,929] [2023-11-19 07:49:15,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:15,934 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:49:15,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:15 WrapperNode [2023-11-19 07:49:15,935 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:15,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:15,937 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:49:15,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:49:15,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:15" (1/1) ... [2023-11-19 07:49:15,972 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:15" (1/1) ... [2023-11-19 07:49:16,027 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2023-11-19 07:49:16,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:16,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:49:16,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:49:16,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:49:16,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:15" (1/1) ... [2023-11-19 07:49:16,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:15" (1/1) ... [2023-11-19 07:49:16,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:15" (1/1) ... [2023-11-19 07:49:16,047 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:15" (1/1) ... [2023-11-19 07:49:16,064 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:15" (1/1) ... [2023-11-19 07:49:16,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:15" (1/1) ... [2023-11-19 07:49:16,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:15" (1/1) ... [2023-11-19 07:49:16,073 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:15" (1/1) ... [2023-11-19 07:49:16,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:49:16,079 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:49:16,079 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:49:16,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:49:16,088 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:15" (1/1) ... [2023-11-19 07:49:16,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:16,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:16,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:16,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:49:16,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:49:16,164 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:49:16,165 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:49:16,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:49:16,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:49:16,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:49:16,268 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:49:16,271 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:49:16,766 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:49:16,774 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:49:16,774 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:49:16,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:16 BoogieIcfgContainer [2023-11-19 07:49:16,779 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:49:16,782 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:49:16,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:49:16,786 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:49:16,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:49:15" (1/3) ... [2023-11-19 07:49:16,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f5a4c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:16, skipping insertion in model container [2023-11-19 07:49:16,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:15" (2/3) ... [2023-11-19 07:49:16,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f5a4c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:16, skipping insertion in model container [2023-11-19 07:49:16,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:16" (3/3) ... [2023-11-19 07:49:16,789 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-2.i [2023-11-19 07:49:16,811 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:49:16,811 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:49:16,880 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:49:16,891 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;@6f72195e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:49:16,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:49:16,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:49:16,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 07:49:16,911 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:16,913 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:16,914 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:16,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:16,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1836082867, now seen corresponding path program 1 times [2023-11-19 07:49:16,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:16,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104209103] [2023-11-19 07:49:16,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:16,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:17,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:17,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104209103] [2023-11-19 07:49:17,194 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:49:17,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414614046] [2023-11-19 07:49:17,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:17,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:17,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:17,204 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:17,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:49:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:17,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:49:17,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:17,466 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-19 07:49:17,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:17,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414614046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:17,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:17,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:49:17,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226075803] [2023-11-19 07:49:17,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:17,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:49:17,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:17,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:49:17,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:49:17,524 INFO L87 Difference]: Start difference. First operand has 51 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:49:17,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:17,569 INFO L93 Difference]: Finished difference Result 95 states and 156 transitions. [2023-11-19 07:49:17,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:49:17,572 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 81 [2023-11-19 07:49:17,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:17,582 INFO L225 Difference]: With dead ends: 95 [2023-11-19 07:49:17,582 INFO L226 Difference]: Without dead ends: 47 [2023-11-19 07:49:17,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 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 07:49:17,590 INFO L413 NwaCegarLoop]: 66 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, 66 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 07:49:17,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:49:17,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-19 07:49:17,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-19 07:49:17,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:49:17,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 66 transitions. [2023-11-19 07:49:17,635 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 66 transitions. Word has length 81 [2023-11-19 07:49:17,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:17,635 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 66 transitions. [2023-11-19 07:49:17,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:49:17,636 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 66 transitions. [2023-11-19 07:49:17,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 07:49:17,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:17,641 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:17,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 07:49:17,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:49:17,863 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:17,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:17,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1348974711, now seen corresponding path program 1 times [2023-11-19 07:49:17,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:17,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107480741] [2023-11-19 07:49:17,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:17,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:17,939 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:17,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1206799605] [2023-11-19 07:49:17,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:17,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:17,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:17,944 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:17,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:49:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:18,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:49:18,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:20,766 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 07:49:20,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:20,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:20,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107480741] [2023-11-19 07:49:20,767 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:20,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206799605] [2023-11-19 07:49:20,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206799605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:20,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:20,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:49:20,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478901480] [2023-11-19 07:49:20,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:20,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:49:20,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:20,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:49:20,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:49:20,772 INFO L87 Difference]: Start difference. First operand 47 states and 66 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:49:20,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:20,994 INFO L93 Difference]: Finished difference Result 111 states and 156 transitions. [2023-11-19 07:49:20,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:49:20,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 81 [2023-11-19 07:49:20,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:20,998 INFO L225 Difference]: With dead ends: 111 [2023-11-19 07:49:20,998 INFO L226 Difference]: Without dead ends: 67 [2023-11-19 07:49:20,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:49:21,001 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 32 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:21,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 142 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:49:21,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-19 07:49:21,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 55. [2023-11-19 07:49:21,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 41 states have internal predecessors, (55), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:49:21,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2023-11-19 07:49:21,013 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 81 [2023-11-19 07:49:21,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:21,015 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2023-11-19 07:49:21,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:49:21,016 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2023-11-19 07:49:21,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 07:49:21,018 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:21,018 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:21,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:21,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:21,240 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:21,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:21,240 INFO L85 PathProgramCache]: Analyzing trace with hash 2029033081, now seen corresponding path program 1 times [2023-11-19 07:49:21,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:21,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591937957] [2023-11-19 07:49:21,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:21,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:21,300 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:21,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1165016749] [2023-11-19 07:49:21,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:21,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:21,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:21,309 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:21,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:49:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:21,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:49:21,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:21,543 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 07:49:21,549 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:21,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:21,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591937957] [2023-11-19 07:49:21,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:21,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165016749] [2023-11-19 07:49:21,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165016749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:21,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:21,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:49:21,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052729756] [2023-11-19 07:49:21,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:21,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:49:21,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:21,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:49:21,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:49:21,554 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:49:21,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:21,621 INFO L93 Difference]: Finished difference Result 118 states and 167 transitions. [2023-11-19 07:49:21,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:49:21,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 81 [2023-11-19 07:49:21,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:21,628 INFO L225 Difference]: With dead ends: 118 [2023-11-19 07:49:21,628 INFO L226 Difference]: Without dead ends: 66 [2023-11-19 07:49:21,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:49:21,633 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 26 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:21,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 220 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:49:21,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-19 07:49:21,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 47. [2023-11-19 07:49:21,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:49:21,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 65 transitions. [2023-11-19 07:49:21,652 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 65 transitions. Word has length 81 [2023-11-19 07:49:21,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:21,655 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 65 transitions. [2023-11-19 07:49:21,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:49:21,655 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 65 transitions. [2023-11-19 07:49:21,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 07:49:21,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:21,660 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:21,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:21,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:21,876 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:21,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:21,877 INFO L85 PathProgramCache]: Analyzing trace with hash 2086917705, now seen corresponding path program 1 times [2023-11-19 07:49:21,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:21,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692382826] [2023-11-19 07:49:21,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:21,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:21,906 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:21,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2017248761] [2023-11-19 07:49:21,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:21,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:21,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:21,908 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:21,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:49:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:22,034 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:49:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:22,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:49:22,109 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:49:22,110 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:49:22,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:22,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:22,330 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 07:49:22,334 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:49:22,397 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated [2023-11-19 07:49:22,398 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite13 could not be translated [2023-11-19 07:49:22,400 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated [2023-11-19 07:49:22,403 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated [2023-11-19 07:49:22,403 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite13 could not be translated [2023-11-19 07:49:22,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:49:22 BoogieIcfgContainer [2023-11-19 07:49:22,431 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:49:22,432 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:49:22,433 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:49:22,433 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:49:22,434 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:16" (3/4) ... [2023-11-19 07:49:22,436 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:49:22,437 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:49:22,438 INFO L158 Benchmark]: Toolchain (without parser) took 6969.53ms. Allocated memory was 113.2MB in the beginning and 176.2MB in the end (delta: 62.9MB). Free memory was 74.9MB in the beginning and 144.6MB in the end (delta: -69.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:49:22,439 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 113.2MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:49:22,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.63ms. Allocated memory is still 113.2MB. Free memory was 74.9MB in the beginning and 62.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:49:22,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.39ms. Allocated memory is still 113.2MB. Free memory was 62.1MB in the beginning and 58.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:49:22,440 INFO L158 Benchmark]: Boogie Preprocessor took 50.01ms. Allocated memory is still 113.2MB. Free memory was 58.5MB in the beginning and 56.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:49:22,443 INFO L158 Benchmark]: RCFGBuilder took 700.30ms. Allocated memory was 113.2MB in the beginning and 146.8MB in the end (delta: 33.6MB). Free memory was 56.8MB in the beginning and 111.8MB in the end (delta: -55.1MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2023-11-19 07:49:22,444 INFO L158 Benchmark]: TraceAbstraction took 5649.64ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 111.1MB in the beginning and 144.6MB in the end (delta: -33.5MB). Peak memory consumption was 95.9MB. Max. memory is 16.1GB. [2023-11-19 07:49:22,447 INFO L158 Benchmark]: Witness Printer took 5.73ms. Allocated memory is still 176.2MB. Free memory is still 144.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:49:22,449 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 113.2MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.63ms. Allocated memory is still 113.2MB. Free memory was 74.9MB in the beginning and 62.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.39ms. Allocated memory is still 113.2MB. Free memory was 62.1MB in the beginning and 58.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.01ms. Allocated memory is still 113.2MB. Free memory was 58.5MB in the beginning and 56.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 700.30ms. Allocated memory was 113.2MB in the beginning and 146.8MB in the end (delta: 33.6MB). Free memory was 56.8MB in the beginning and 111.8MB in the end (delta: -55.1MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5649.64ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 111.1MB in the beginning and 144.6MB in the end (delta: -33.5MB). Peak memory consumption was 95.9MB. Max. memory is 16.1GB. * Witness Printer took 5.73ms. Allocated memory is still 176.2MB. Free memory is still 144.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite13 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 89, overapproximation of someUnaryDOUBLEoperation at line 29. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 10; [L23] unsigned short int var_1_5 = 200; [L24] unsigned short int var_1_6 = 56955; [L25] unsigned short int var_1_7 = 32; [L26] unsigned short int var_1_8 = 1; [L27] unsigned short int var_1_9 = 8; [L28] unsigned char var_1_10 = 1; [L29] float var_1_11 = -0.6; [L30] float var_1_12 = 9.125; [L31] float var_1_13 = 50.5; [L32] unsigned short int last_1_var_1_1 = 10; [L33] unsigned short int last_1_var_1_9 = 8; VAL [isInitial=0, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=200, var_1_6=56955, var_1_7=32, var_1_8=1, var_1_9=8] [L93] isInitial = 1 [L94] FCALL initially() [L95] COND TRUE 1 [L96] CALL updateLastVariables() [L85] last_1_var_1_1 = var_1_1 [L86] last_1_var_1_9 = var_1_9 VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=200, var_1_6=56955, var_1_7=32, var_1_8=1, var_1_9=8] [L96] RET updateLastVariables() [L97] CALL updateVariables() [L64] var_1_5 = __VERIFIER_nondet_ushort() [L65] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_6=56955, var_1_7=32, var_1_8=1, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_6=56955, var_1_7=32, var_1_8=1, var_1_9=8] [L65] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_6=56955, var_1_7=32, var_1_8=1, var_1_9=8] [L66] CALL assume_abort_if_not(var_1_5 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=56955, var_1_7=32, var_1_8=1, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=56955, var_1_7=32, var_1_8=1, var_1_9=8] [L66] RET assume_abort_if_not(var_1_5 <= 65534) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=56955, var_1_7=32, var_1_8=1, var_1_9=8] [L67] var_1_6 = __VERIFIER_nondet_ushort() [L68] CALL assume_abort_if_not(var_1_6 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32, var_1_8=1, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32, var_1_8=1, var_1_9=8] [L68] RET assume_abort_if_not(var_1_6 >= 32767) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32, var_1_8=1, var_1_9=8] [L69] CALL assume_abort_if_not(var_1_6 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32, var_1_8=1, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32, var_1_8=1, var_1_9=8] [L69] RET assume_abort_if_not(var_1_6 <= 65534) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32, var_1_8=1, var_1_9=8] [L70] var_1_7 = __VERIFIER_nondet_ushort() [L71] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1, var_1_9=8] [L71] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1, var_1_9=8] [L72] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1, var_1_9=8] [L72] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1, var_1_9=8] [L73] var_1_8 = __VERIFIER_nondet_ushort() [L74] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L74] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L75] CALL assume_abort_if_not(var_1_8 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L75] RET assume_abort_if_not(var_1_8 <= 65534) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=1, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L76] var_1_10 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L77] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L78] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L78] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_12=73/8, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L79] var_1_12 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && 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_1=10, last_1_var_1_9=8, var_1_10=0, var_1_12=2, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_12=2, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L80] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && 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_1=10, last_1_var_1_9=8, var_1_10=0, var_1_12=2, var_1_13=101/2, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L81] var_1_13 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_12=2, var_1_13=3, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_12=2, var_1_13=3, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L82] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_12=2, var_1_13=3, var_1_1=10, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L97] RET updateVariables() [L98] CALL step() [L37] COND TRUE last_1_var_1_9 <= (last_1_var_1_9 * last_1_var_1_1) [L38] var_1_1 = ((((var_1_5) > ((((((var_1_6 - var_1_7)) > (var_1_8)) ? ((var_1_6 - var_1_7)) : (var_1_8))))) ? (var_1_5) : ((((((var_1_6 - var_1_7)) > (var_1_8)) ? ((var_1_6 - var_1_7)) : (var_1_8)))))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_12=2, var_1_13=3, var_1_1=32768, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=8] [L40] COND FALSE !(var_1_10 || (var_1_6 == var_1_8)) [L51] var_1_9 = var_1_6 VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_12=2, var_1_13=3, var_1_1=32768, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=32767] [L53] COND FALSE !(var_1_7 != var_1_6) [L60] var_1_11 = var_1_12 VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_11=2, var_1_12=2, var_1_13=3, var_1_1=32768, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=32767] [L98] RET step() [L99] CALL, EXPR property() [L89] EXPR ((last_1_var_1_9 <= (last_1_var_1_9 * last_1_var_1_1)) ? (var_1_1 == ((unsigned short int) ((((var_1_5) > ((((((var_1_6 - var_1_7)) > (var_1_8)) ? ((var_1_6 - var_1_7)) : (var_1_8))))) ? (var_1_5) : ((((((var_1_6 - var_1_7)) > (var_1_8)) ? ((var_1_6 - var_1_7)) : (var_1_8)))))))) : 1) && ((var_1_10 || (var_1_6 == var_1_8)) ? ((var_1_6 <= (((((0) < (var_1_1)) ? (0) : (var_1_1))) << var_1_1)) ? ((var_1_10 && (var_1_1 == (var_1_6 * var_1_5))) ? (var_1_9 == ((unsigned short int) var_1_5)) : (var_1_9 == ((unsigned short int) var_1_5))) : (var_1_9 == ((unsigned short int) 2))) : (var_1_9 == ((unsigned short int) var_1_6))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_11=2, var_1_12=2, var_1_13=3, var_1_1=32768, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=32767] [L89] EXPR (var_1_10 || (var_1_6 == var_1_8)) ? ((var_1_6 <= (((((0) < (var_1_1)) ? (0) : (var_1_1))) << var_1_1)) ? ((var_1_10 && (var_1_1 == (var_1_6 * var_1_5))) ? (var_1_9 == ((unsigned short int) var_1_5)) : (var_1_9 == ((unsigned short int) var_1_5))) : (var_1_9 == ((unsigned short int) 2))) : (var_1_9 == ((unsigned short int) var_1_6)) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_11=2, var_1_12=2, var_1_13=3, var_1_1=32768, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=32767] [L89] EXPR ((last_1_var_1_9 <= (last_1_var_1_9 * last_1_var_1_1)) ? (var_1_1 == ((unsigned short int) ((((var_1_5) > ((((((var_1_6 - var_1_7)) > (var_1_8)) ? ((var_1_6 - var_1_7)) : (var_1_8))))) ? (var_1_5) : ((((((var_1_6 - var_1_7)) > (var_1_8)) ? ((var_1_6 - var_1_7)) : (var_1_8)))))))) : 1) && ((var_1_10 || (var_1_6 == var_1_8)) ? ((var_1_6 <= (((((0) < (var_1_1)) ? (0) : (var_1_1))) << var_1_1)) ? ((var_1_10 && (var_1_1 == (var_1_6 * var_1_5))) ? (var_1_9 == ((unsigned short int) var_1_5)) : (var_1_9 == ((unsigned short int) var_1_5))) : (var_1_9 == ((unsigned short int) 2))) : (var_1_9 == ((unsigned short int) var_1_6))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_11=2, var_1_12=2, var_1_13=3, var_1_1=32768, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=32767] [L89-L90] return (((last_1_var_1_9 <= (last_1_var_1_9 * last_1_var_1_1)) ? (var_1_1 == ((unsigned short int) ((((var_1_5) > ((((((var_1_6 - var_1_7)) > (var_1_8)) ? ((var_1_6 - var_1_7)) : (var_1_8))))) ? (var_1_5) : ((((((var_1_6 - var_1_7)) > (var_1_8)) ? ((var_1_6 - var_1_7)) : (var_1_8)))))))) : 1) && ((var_1_10 || (var_1_6 == var_1_8)) ? ((var_1_6 <= (((((0) < (var_1_1)) ? (0) : (var_1_1))) << var_1_1)) ? ((var_1_10 && (var_1_1 == (var_1_6 * var_1_5))) ? (var_1_9 == ((unsigned short int) var_1_5)) : (var_1_9 == ((unsigned short int) var_1_5))) : (var_1_9 == ((unsigned short int) 2))) : (var_1_9 == ((unsigned short int) var_1_6)))) && ((var_1_7 != var_1_6) ? ((var_1_7 <= var_1_9) ? (var_1_11 == ((float) ((((var_1_12) > (var_1_13)) ? (var_1_12) : (var_1_13))))) : (var_1_11 == ((float) var_1_12))) : (var_1_11 == ((float) var_1_12))) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_11=2, var_1_12=2, var_1_13=3, var_1_1=32768, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=32767] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10=0, var_1_11=2, var_1_12=2, var_1_13=3, var_1_1=32768, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=32768, var_1_9=32767] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 4, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 428 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 219 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 81 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 209 mSDtfsCounter, 81 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 242 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 31 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 407 NumberOfCodeBlocks, 407 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 240 ConstructedInterpolants, 0 QuantifiedInterpolants, 567 SizeOfPredicates, 9 NumberOfNonLiveVariables, 601 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 792/792 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 07:49:22,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/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_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/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_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/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_63604aff-aff7-42c8-975b-547746d8c5b0/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 367edc47af4ec003a96fd86b04464a3d0c779fcc885147096dbe680589605201 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:49:25,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:49:25,308 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:49:25,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:49:25,318 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:49:25,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:49:25,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:49:25,370 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:49:25,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:49:25,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:49:25,378 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:49:25,379 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:49:25,379 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:49:25,382 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:49:25,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:49:25,383 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:49:25,383 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:49:25,384 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:49:25,384 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:49:25,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:49:25,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:49:25,387 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:49:25,387 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:49:25,388 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:49:25,388 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:49:25,389 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:49:25,389 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:49:25,390 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:49:25,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:49:25,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:49:25,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:25,393 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:49:25,393 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:49:25,394 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:49:25,394 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:49:25,394 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:49:25,395 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:49:25,395 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:49:25,395 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:49:25,397 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:49:25,397 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:49:25,397 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:49:25,398 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_63604aff-aff7-42c8-975b-547746d8c5b0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 367edc47af4ec003a96fd86b04464a3d0c779fcc885147096dbe680589605201 [2023-11-19 07:49:25,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:49:25,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:49:25,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:49:25,872 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:49:25,873 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:49:25,874 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-2.i [2023-11-19 07:49:29,182 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:49:29,505 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:49:29,506 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-2.i [2023-11-19 07:49:29,516 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/data/1159175e9/0485ac3ad80a4424a4df9b1301ad94ec/FLAG8196a59f4 [2023-11-19 07:49:29,533 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/data/1159175e9/0485ac3ad80a4424a4df9b1301ad94ec [2023-11-19 07:49:29,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:49:29,538 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:49:29,540 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:29,540 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:49:29,546 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:49:29,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:29" (1/1) ... [2023-11-19 07:49:29,548 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe2f901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:29, skipping insertion in model container [2023-11-19 07:49:29,548 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:29" (1/1) ... [2023-11-19 07:49:29,591 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:49:29,815 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_63604aff-aff7-42c8-975b-547746d8c5b0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-2.i[916,929] [2023-11-19 07:49:29,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:29,877 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:49:29,891 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_63604aff-aff7-42c8-975b-547746d8c5b0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-2.i[916,929] [2023-11-19 07:49:29,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:29,935 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:49:29,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:29 WrapperNode [2023-11-19 07:49:29,936 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:29,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:29,937 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:49:29,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:49:29,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:29" (1/1) ... [2023-11-19 07:49:29,959 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:29" (1/1) ... [2023-11-19 07:49:29,987 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 95 [2023-11-19 07:49:29,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:29,989 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:49:29,989 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:49:29,989 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:49:30,000 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:29" (1/1) ... [2023-11-19 07:49:30,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:29" (1/1) ... [2023-11-19 07:49:30,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:29" (1/1) ... [2023-11-19 07:49:30,006 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:29" (1/1) ... [2023-11-19 07:49:30,028 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:29" (1/1) ... [2023-11-19 07:49:30,032 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:29" (1/1) ... [2023-11-19 07:49:30,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:29" (1/1) ... [2023-11-19 07:49:30,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:29" (1/1) ... [2023-11-19 07:49:30,056 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:49:30,058 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:49:30,058 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:49:30,058 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:49:30,059 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:29" (1/1) ... [2023-11-19 07:49:30,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:30,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:30,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:30,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:49:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:49:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:49:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:49:30,162 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:49:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:49:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:49:30,340 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:49:30,342 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:49:30,752 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:49:30,761 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:49:30,761 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:49:30,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:30 BoogieIcfgContainer [2023-11-19 07:49:30,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:49:30,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:49:30,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:49:30,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:49:30,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:49:29" (1/3) ... [2023-11-19 07:49:30,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b10d74e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:30, skipping insertion in model container [2023-11-19 07:49:30,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:29" (2/3) ... [2023-11-19 07:49:30,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b10d74e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:30, skipping insertion in model container [2023-11-19 07:49:30,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:30" (3/3) ... [2023-11-19 07:49:30,775 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-2.i [2023-11-19 07:49:30,795 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:49:30,795 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:49:30,857 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:49:30,866 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;@713157b5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:49:30,866 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:49:30,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:49:30,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 07:49:30,886 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:30,887 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:30,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:30,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:30,897 INFO L85 PathProgramCache]: Analyzing trace with hash -475101046, now seen corresponding path program 1 times [2023-11-19 07:49:30,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:49:30,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [200631518] [2023-11-19 07:49:30,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:30,916 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 07:49:30,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:49:30,923 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/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 07:49:30,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/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 07:49:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:31,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:49:31,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:31,241 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-19 07:49:31,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:31,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:49:31,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [200631518] [2023-11-19 07:49:31,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [200631518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:31,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:31,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:49:31,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458044808] [2023-11-19 07:49:31,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:31,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:49:31,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:49:31,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:49:31,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:49:31,308 INFO L87 Difference]: Start difference. First operand has 44 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:49:31,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:31,344 INFO L93 Difference]: Finished difference Result 81 states and 134 transitions. [2023-11-19 07:49:31,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:49:31,346 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79 [2023-11-19 07:49:31,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:31,357 INFO L225 Difference]: With dead ends: 81 [2023-11-19 07:49:31,357 INFO L226 Difference]: Without dead ends: 40 [2023-11-19 07:49:31,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 78 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 07:49:31,366 INFO L413 NwaCegarLoop]: 57 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, 57 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 07:49:31,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:49:31,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-19 07:49:31,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-19 07:49:31,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:49:31,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 57 transitions. [2023-11-19 07:49:31,437 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 57 transitions. Word has length 79 [2023-11-19 07:49:31,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:31,437 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 57 transitions. [2023-11-19 07:49:31,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:49:31,438 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 57 transitions. [2023-11-19 07:49:31,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 07:49:31,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:31,442 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:31,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/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 07:49:31,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/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 07:49:31,648 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:31,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:31,648 INFO L85 PathProgramCache]: Analyzing trace with hash 2098690894, now seen corresponding path program 1 times [2023-11-19 07:49:31,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:49:31,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029065133] [2023-11-19 07:49:31,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:31,649 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 07:49:31,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:49:31,651 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/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 07:49:31,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63604aff-aff7-42c8-975b-547746d8c5b0/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 07:49:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:31,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 07:49:31,844 INFO L285 TraceCheckSpWp]: Computing forward predicates...