./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya --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 434b16a64b06ae36ef836c68b9042912d6cf793be5a1688bb3a25d59d1194c23 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:00:04,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:00:04,744 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 07:00:04,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:00:04,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:00:04,773 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:00:04,773 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:00:04,774 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:00:04,775 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:00:04,775 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:00:04,776 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:00:04,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:00:04,777 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:00:04,778 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:00:04,778 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:00:04,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:00:04,779 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:00:04,780 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:00:04,780 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:00:04,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:00:04,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:00:04,782 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:00:04,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:00:04,783 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:00:04,783 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:00:04,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:00:04,784 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:00:04,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:00:04,785 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:00:04,785 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:00:04,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:00:04,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:00:04,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:00:04,787 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:00:04,787 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:00:04,788 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 07:00:04,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 07:00:04,788 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:00:04,788 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:00:04,789 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:00:04,789 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:00:04,789 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:00:04,789 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_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 434b16a64b06ae36ef836c68b9042912d6cf793be5a1688bb3a25d59d1194c23 [2023-11-29 07:00:05,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:00:05,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:00:05,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:00:05,025 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:00:05,025 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:00:05,026 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i [2023-11-29 07:00:07,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:00:08,003 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:00:08,004 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i [2023-11-29 07:00:08,012 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/data/e2ece5075/0eb494342a07468e82e14a6450b86548/FLAG7dffa3d32 [2023-11-29 07:00:08,028 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/data/e2ece5075/0eb494342a07468e82e14a6450b86548 [2023-11-29 07:00:08,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:00:08,032 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:00:08,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:00:08,034 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:00:08,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:00:08,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:00:08" (1/1) ... [2023-11-29 07:00:08,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45352d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:08, skipping insertion in model container [2023-11-29 07:00:08,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:00:08" (1/1) ... [2023-11-29 07:00:08,067 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:00:08,214 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_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i[916,929] [2023-11-29 07:00:08,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:00:08,260 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:00:08,273 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_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i[916,929] [2023-11-29 07:00:08,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:00:08,306 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:00:08,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:08 WrapperNode [2023-11-29 07:00:08,306 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:00:08,307 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:00:08,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:00:08,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:00:08,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:08" (1/1) ... [2023-11-29 07:00:08,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:08" (1/1) ... [2023-11-29 07:00:08,349 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2023-11-29 07:00:08,349 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:00:08,350 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:00:08,350 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:00:08,350 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:00:08,362 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:08" (1/1) ... [2023-11-29 07:00:08,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:08" (1/1) ... [2023-11-29 07:00:08,365 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:08" (1/1) ... [2023-11-29 07:00:08,378 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 07:00:08,379 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:08" (1/1) ... [2023-11-29 07:00:08,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:08" (1/1) ... [2023-11-29 07:00:08,384 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:08" (1/1) ... [2023-11-29 07:00:08,387 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:08" (1/1) ... [2023-11-29 07:00:08,389 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:08" (1/1) ... [2023-11-29 07:00:08,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:08" (1/1) ... [2023-11-29 07:00:08,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:00:08,394 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:00:08,394 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:00:08,394 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:00:08,395 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:08" (1/1) ... [2023-11-29 07:00:08,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:00:08,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:08,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:00:08,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:00:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:00:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 07:00:08,455 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 07:00:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 07:00:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:00:08,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:00:08,521 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:00:08,523 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:00:08,750 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:00:08,784 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:00:08,784 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 07:00:08,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:00:08 BoogieIcfgContainer [2023-11-29 07:00:08,784 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:00:08,788 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:00:08,788 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:00:08,791 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:00:08,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:00:08" (1/3) ... [2023-11-29 07:00:08,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe68994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:00:08, skipping insertion in model container [2023-11-29 07:00:08,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:08" (2/3) ... [2023-11-29 07:00:08,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe68994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:00:08, skipping insertion in model container [2023-11-29 07:00:08,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:00:08" (3/3) ... [2023-11-29 07:00:08,794 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-79.i [2023-11-29 07:00:08,814 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:00:08,814 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 07:00:08,865 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:00:08,873 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;@3ce3b72d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:00:08,873 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 07:00:08,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:00:08,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 07:00:08,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:08,892 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:00:08,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:00:08,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:08,898 INFO L85 PathProgramCache]: Analyzing trace with hash 666231349, now seen corresponding path program 1 times [2023-11-29 07:00:08,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:08,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603994681] [2023-11-29 07:00:08,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:08,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:09,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:00:09,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603994681] [2023-11-29 07:00:09,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 07:00:09,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727537380] [2023-11-29 07:00:09,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:09,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:09,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:09,092 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:00:09,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 07:00:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:09,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 07:00:09,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:09,253 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-11-29 07:00:09,253 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:00:09,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727537380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:09,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:09,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:00:09,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654380921] [2023-11-29 07:00:09,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:09,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 07:00:09,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:00:09,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 07:00:09,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:00:09,293 INFO L87 Difference]: Start difference. First operand has 47 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 07:00:09,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:09,321 INFO L93 Difference]: Finished difference Result 91 states and 156 transitions. [2023-11-29 07:00:09,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 07:00:09,324 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 90 [2023-11-29 07:00:09,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:09,331 INFO L225 Difference]: With dead ends: 91 [2023-11-29 07:00:09,332 INFO L226 Difference]: Without dead ends: 45 [2023-11-29 07:00:09,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:00:09,339 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:09,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:00:09,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-29 07:00:09,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-29 07:00:09,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:00:09,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 67 transitions. [2023-11-29 07:00:09,384 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 67 transitions. Word has length 90 [2023-11-29 07:00:09,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:09,384 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 67 transitions. [2023-11-29 07:00:09,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 07:00:09,385 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 67 transitions. [2023-11-29 07:00:09,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 07:00:09,389 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:09,389 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:00:09,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 07:00:09,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:09,590 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:00:09,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:09,591 INFO L85 PathProgramCache]: Analyzing trace with hash -539411595, now seen corresponding path program 1 times [2023-11-29 07:00:09,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:09,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205425609] [2023-11-29 07:00:09,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:09,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:09,639 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:00:09,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [783011437] [2023-11-29 07:00:09,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:09,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:09,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:09,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:00:09,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 07:00:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:09,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:00:09,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:09,832 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 07:00:09,833 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:00:09,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:00:09,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205425609] [2023-11-29 07:00:09,833 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:00:09,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783011437] [2023-11-29 07:00:09,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783011437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:09,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:09,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:00:09,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085111444] [2023-11-29 07:00:09,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:09,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:00:09,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:00:09,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:00:09,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:00:09,837 INFO L87 Difference]: Start difference. First operand 45 states and 67 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:00:09,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:09,899 INFO L93 Difference]: Finished difference Result 131 states and 195 transitions. [2023-11-29 07:00:09,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:00:09,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 90 [2023-11-29 07:00:09,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:09,903 INFO L225 Difference]: With dead ends: 131 [2023-11-29 07:00:09,903 INFO L226 Difference]: Without dead ends: 87 [2023-11-29 07:00:09,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:00:09,906 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 65 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:09,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 286 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:00:09,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-29 07:00:09,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 47. [2023-11-29 07:00:09,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:00:09,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 69 transitions. [2023-11-29 07:00:09,921 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 69 transitions. Word has length 90 [2023-11-29 07:00:09,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:09,923 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 69 transitions. [2023-11-29 07:00:09,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:00:09,923 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 69 transitions. [2023-11-29 07:00:09,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-29 07:00:09,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:09,925 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:00:09,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 07:00:10,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:10,127 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:00:10,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:10,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1734705598, now seen corresponding path program 1 times [2023-11-29 07:00:10,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:10,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400407616] [2023-11-29 07:00:10,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:10,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:10,160 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:00:10,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1873295554] [2023-11-29 07:00:10,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:10,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:10,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:10,163 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:00:10,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 07:00:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:10,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:00:10,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:10,856 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 07:00:10,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:00:10,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:00:10,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400407616] [2023-11-29 07:00:10,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:00:10,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873295554] [2023-11-29 07:00:10,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873295554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:10,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:10,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:00:10,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463519454] [2023-11-29 07:00:10,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:10,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:00:10,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:00:10,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:00:10,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:00:10,859 INFO L87 Difference]: Start difference. First operand 47 states and 69 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:00:10,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:10,928 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2023-11-29 07:00:10,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:00:10,929 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2023-11-29 07:00:10,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:10,931 INFO L225 Difference]: With dead ends: 101 [2023-11-29 07:00:10,931 INFO L226 Difference]: Without dead ends: 55 [2023-11-29 07:00:10,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:00:10,934 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 12 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:10,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 184 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:00:10,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-29 07:00:10,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 45. [2023-11-29 07:00:10,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:00:10,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2023-11-29 07:00:10,942 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 66 transitions. Word has length 91 [2023-11-29 07:00:10,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:10,943 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 66 transitions. [2023-11-29 07:00:10,943 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:00:10,944 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2023-11-29 07:00:10,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 07:00:10,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:10,946 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:00:10,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 07:00:11,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-29 07:00:11,147 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:00:11,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:11,148 INFO L85 PathProgramCache]: Analyzing trace with hash 994901722, now seen corresponding path program 1 times [2023-11-29 07:00:11,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:11,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972694764] [2023-11-29 07:00:11,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:11,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:11,181 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:00:11,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1822828372] [2023-11-29 07:00:11,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:11,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:11,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:11,183 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:00:11,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 07:00:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:11,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:00:11,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:11,322 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-29 07:00:11,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:00:11,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:00:11,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972694764] [2023-11-29 07:00:11,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:00:11,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822828372] [2023-11-29 07:00:11,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822828372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:11,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:11,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 07:00:11,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260154929] [2023-11-29 07:00:11,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:11,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:00:11,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:00:11,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:00:11,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:00:11,325 INFO L87 Difference]: Start difference. First operand 45 states and 66 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:00:11,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:11,530 INFO L93 Difference]: Finished difference Result 95 states and 136 transitions. [2023-11-29 07:00:11,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:00:11,531 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 92 [2023-11-29 07:00:11,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:11,532 INFO L225 Difference]: With dead ends: 95 [2023-11-29 07:00:11,533 INFO L226 Difference]: Without dead ends: 51 [2023-11-29 07:00:11,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:00:11,535 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 76 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:11,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 96 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:00:11,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-29 07:00:11,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2023-11-29 07:00:11,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:00:11,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 67 transitions. [2023-11-29 07:00:11,546 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 67 transitions. Word has length 92 [2023-11-29 07:00:11,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:11,547 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 67 transitions. [2023-11-29 07:00:11,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:00:11,547 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 67 transitions. [2023-11-29 07:00:11,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 07:00:11,549 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:11,549 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:00:11,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 07:00:11,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:11,750 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:00:11,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:11,751 INFO L85 PathProgramCache]: Analyzing trace with hash 283170531, now seen corresponding path program 1 times [2023-11-29 07:00:11,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:11,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850756463] [2023-11-29 07:00:11,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:11,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:11,775 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:00:11,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1687097194] [2023-11-29 07:00:11,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:11,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:11,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:11,777 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:00:11,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 07:00:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:11,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 07:00:11,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:12,656 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 07:00:12,657 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:00:12,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:00:12,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850756463] [2023-11-29 07:00:12,657 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:00:12,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687097194] [2023-11-29 07:00:12,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687097194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:12,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:12,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 07:00:12,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233531096] [2023-11-29 07:00:12,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:12,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:00:12,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:00:12,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:00:12,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:00:12,660 INFO L87 Difference]: Start difference. First operand 49 states and 67 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:00:13,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:13,063 INFO L93 Difference]: Finished difference Result 85 states and 108 transitions. [2023-11-29 07:00:13,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:00:13,063 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2023-11-29 07:00:13,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:13,065 INFO L225 Difference]: With dead ends: 85 [2023-11-29 07:00:13,065 INFO L226 Difference]: Without dead ends: 83 [2023-11-29 07:00:13,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:00:13,067 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 64 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:13,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 286 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:00:13,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-29 07:00:13,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 61. [2023-11-29 07:00:13,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 44 states have internal predecessors, (54), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:00:13,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 82 transitions. [2023-11-29 07:00:13,078 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 82 transitions. Word has length 93 [2023-11-29 07:00:13,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:13,079 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 82 transitions. [2023-11-29 07:00:13,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:00:13,079 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 82 transitions. [2023-11-29 07:00:13,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 07:00:13,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:13,081 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:00:13,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 07:00:13,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:13,287 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:00:13,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:13,288 INFO L85 PathProgramCache]: Analyzing trace with hash 285017573, now seen corresponding path program 1 times [2023-11-29 07:00:13,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:13,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5706315] [2023-11-29 07:00:13,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:13,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:13,311 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:00:13,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [514723519] [2023-11-29 07:00:13,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:13,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:13,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:13,312 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:00:13,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 07:00:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:13,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:00:13,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 07:00:13,441 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:00:13,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:00:13,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5706315] [2023-11-29 07:00:13,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:00:13,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514723519] [2023-11-29 07:00:13,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514723519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:13,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:13,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:00:13,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213785317] [2023-11-29 07:00:13,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:13,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:00:13,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:00:13,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:00:13,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:00:13,444 INFO L87 Difference]: Start difference. First operand 61 states and 82 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:00:13,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:13,476 INFO L93 Difference]: Finished difference Result 138 states and 184 transitions. [2023-11-29 07:00:13,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:00:13,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2023-11-29 07:00:13,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:13,478 INFO L225 Difference]: With dead ends: 138 [2023-11-29 07:00:13,479 INFO L226 Difference]: Without dead ends: 78 [2023-11-29 07:00:13,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:00:13,480 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 13 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:13,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 108 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:00:13,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-29 07:00:13,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 71. [2023-11-29 07:00:13,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 54 states have (on average 1.2222222222222223) internal successors, (66), 54 states have internal predecessors, (66), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:00:13,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 94 transitions. [2023-11-29 07:00:13,491 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 94 transitions. Word has length 93 [2023-11-29 07:00:13,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:13,491 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 94 transitions. [2023-11-29 07:00:13,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:00:13,492 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 94 transitions. [2023-11-29 07:00:13,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 07:00:13,493 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:13,493 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:00:13,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-29 07:00:13,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:13,699 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:00:13,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:13,700 INFO L85 PathProgramCache]: Analyzing trace with hash -727946719, now seen corresponding path program 1 times [2023-11-29 07:00:13,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:13,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580494652] [2023-11-29 07:00:13,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:13,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:13,721 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:00:13,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [162653648] [2023-11-29 07:00:13,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:13,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:13,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:13,722 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:00:13,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 07:00:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:13,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:00:13,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:13,851 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 07:00:13,851 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:00:13,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:00:13,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580494652] [2023-11-29 07:00:13,852 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:00:13,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162653648] [2023-11-29 07:00:13,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162653648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:13,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:13,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:00:13,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060970510] [2023-11-29 07:00:13,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:13,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:00:13,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:00:13,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:00:13,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:00:13,854 INFO L87 Difference]: Start difference. First operand 71 states and 94 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:00:13,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:13,891 INFO L93 Difference]: Finished difference Result 148 states and 194 transitions. [2023-11-29 07:00:13,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:00:13,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2023-11-29 07:00:13,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:13,895 INFO L225 Difference]: With dead ends: 148 [2023-11-29 07:00:13,895 INFO L226 Difference]: Without dead ends: 78 [2023-11-29 07:00:13,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:00:13,897 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 13 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:13,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 125 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:00:13,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-29 07:00:13,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 71. [2023-11-29 07:00:13,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 54 states have internal predecessors, (65), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:00:13,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 93 transitions. [2023-11-29 07:00:13,907 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 93 transitions. Word has length 93 [2023-11-29 07:00:13,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:13,908 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 93 transitions. [2023-11-29 07:00:13,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:00:13,908 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 93 transitions. [2023-11-29 07:00:13,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 07:00:13,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:13,910 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:00:13,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 07:00:14,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:14,115 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:00:14,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:14,116 INFO L85 PathProgramCache]: Analyzing trace with hash -726099677, now seen corresponding path program 1 times [2023-11-29 07:00:14,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:14,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034925353] [2023-11-29 07:00:14,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:14,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:14,135 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:00:14,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [44403237] [2023-11-29 07:00:14,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:14,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:14,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:14,137 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:00:14,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 07:00:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:00:14,211 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 07:00:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:00:14,290 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 07:00:14,290 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 07:00:14,291 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 07:00:14,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 07:00:14,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:14,496 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:00:14,499 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 07:00:14,563 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 07:00:14,567 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated [2023-11-29 07:00:14,567 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-29 07:00:14,567 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated [2023-11-29 07:00:14,568 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated [2023-11-29 07:00:14,568 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-29 07:00:14,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:00:14 BoogieIcfgContainer [2023-11-29 07:00:14,585 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 07:00:14,585 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 07:00:14,585 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 07:00:14,585 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 07:00:14,586 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:00:08" (3/4) ... [2023-11-29 07:00:14,588 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 07:00:14,588 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 07:00:14,589 INFO L158 Benchmark]: Toolchain (without parser) took 6557.03ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 121.5MB in the beginning and 79.8MB in the end (delta: 41.7MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. [2023-11-29 07:00:14,589 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 107.0MB. Free memory is still 55.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 07:00:14,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.08ms. Allocated memory is still 165.7MB. Free memory was 120.9MB in the beginning and 109.5MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 07:00:14,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.06ms. Allocated memory is still 165.7MB. Free memory was 108.9MB in the beginning and 106.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 07:00:14,590 INFO L158 Benchmark]: Boogie Preprocessor took 42.88ms. Allocated memory is still 165.7MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 07:00:14,590 INFO L158 Benchmark]: RCFGBuilder took 390.91ms. Allocated memory is still 165.7MB. Free memory was 104.7MB in the beginning and 87.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 07:00:14,591 INFO L158 Benchmark]: TraceAbstraction took 5796.93ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 86.4MB in the beginning and 79.8MB in the end (delta: 6.6MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2023-11-29 07:00:14,591 INFO L158 Benchmark]: Witness Printer took 3.16ms. Allocated memory is still 199.2MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 07:00:14,593 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 107.0MB. Free memory is still 55.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.08ms. Allocated memory is still 165.7MB. Free memory was 120.9MB in the beginning and 109.5MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.06ms. Allocated memory is still 165.7MB. Free memory was 108.9MB in the beginning and 106.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.88ms. Allocated memory is still 165.7MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 390.91ms. Allocated memory is still 165.7MB. Free memory was 104.7MB in the beginning and 87.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5796.93ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 86.4MB in the beginning and 79.8MB in the end (delta: 6.6MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. * Witness Printer took 3.16ms. Allocated memory is still 199.2MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet12 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 shiftRight at line 91. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -16; [L23] signed char var_1_3 = 0; [L24] signed char var_1_4 = 64; [L25] signed char var_1_5 = 64; [L26] signed long int var_1_6 = -64; [L27] signed long int var_1_8 = 32; [L28] signed long int var_1_9 = 1; [L29] unsigned short int var_1_10 = 32; [L30] signed long int var_1_11 = 15; [L31] unsigned char var_1_12 = 0; [L32] unsigned char var_1_13 = 0; [L33] unsigned short int last_1_var_1_10 = 32; [L95] isInitial = 1 [L96] FCALL initially() [L97] COND TRUE 1 [L98] CALL updateLastVariables() [L88] last_1_var_1_10 = var_1_10 [L98] RET updateLastVariables() [L99] CALL updateVariables() [L65] var_1_3 = __VERIFIER_nondet_char() [L66] CALL assume_abort_if_not(var_1_3 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L66] RET assume_abort_if_not(var_1_3 >= -63) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L67] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L67] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L68] var_1_4 = __VERIFIER_nondet_char() [L69] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L69] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L70] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L70] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L71] var_1_5 = __VERIFIER_nondet_char() [L72] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=32, var_1_9=1] [L72] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=32, var_1_9=1] [L73] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=32, var_1_9=1] [L73] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=32, var_1_9=1] [L74] var_1_8 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_8 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=1] [L75] RET assume_abort_if_not(var_1_8 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=1] [L76] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=1] [L76] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=1] [L77] var_1_9 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_9 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L78] RET assume_abort_if_not(var_1_9 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L79] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L79] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L80] var_1_11 = __VERIFIER_nondet_long() [L81] CALL assume_abort_if_not(var_1_11 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L81] RET assume_abort_if_not(var_1_11 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L82] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L82] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L83] var_1_13 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L84] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L85] CALL assume_abort_if_not(var_1_13 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L85] RET assume_abort_if_not(var_1_13 <= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L99] RET updateVariables() [L100] CALL step() [L37] signed long int stepLocal_0 = (((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10)); VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L38] EXPR last_1_var_1_10 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L38] COND FALSE !(stepLocal_0 <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) [L45] var_1_6 = var_1_5 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L47] signed long int stepLocal_1 = var_1_5 + var_1_6; VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, stepLocal_1=64, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L48] COND FALSE !(var_1_11 < var_1_9) VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, stepLocal_1=64, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L55] var_1_12 = var_1_13 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, stepLocal_1=64, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L56] COND TRUE ! var_1_12 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, stepLocal_1=64, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L57] COND TRUE ! var_1_12 [L58] var_1_1 = (var_1_3 + -32) VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, stepLocal_1=64, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=0, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L100] RET step() [L101] CALL, EXPR property() [L91] EXPR ((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5))) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=0, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L91] EXPR last_1_var_1_10 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=0, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L91] EXPR ((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5))) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=0, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L91-L92] return ((((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5)))) && ((var_1_11 < var_1_9) ? (((var_1_5 + var_1_6) <= (~ (var_1_6 % -32))) ? (var_1_10 == ((unsigned short int) var_1_5)) : (var_1_10 == ((unsigned short int) var_1_5))) : 1)) && (var_1_12 == ((unsigned char) var_1_13)) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=0, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=0, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 8, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 245 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 243 mSDsluCounter, 1149 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 682 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 402 IncrementalHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 467 mSDtfsCounter, 402 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 651 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=6, InterpolantAutomatonStates: 40, 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, 7 MinimizatonAttempts, 88 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 825 NumberOfCodeBlocks, 825 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 635 ConstructedInterpolants, 0 QuantifiedInterpolants, 1163 SizeOfPredicates, 23 NumberOfNonLiveVariables, 1555 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 2548/2548 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 [2023-11-29 07:00:14,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya --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 434b16a64b06ae36ef836c68b9042912d6cf793be5a1688bb3a25d59d1194c23 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:00:16,559 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:00:16,642 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 07:00:16,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:00:16,649 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:00:16,677 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:00:16,678 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:00:16,679 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:00:16,679 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:00:16,680 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:00:16,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:00:16,681 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:00:16,682 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:00:16,683 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:00:16,683 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:00:16,684 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:00:16,684 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:00:16,685 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:00:16,686 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:00:16,686 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:00:16,687 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:00:16,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:00:16,688 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:00:16,688 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 07:00:16,689 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 07:00:16,689 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 07:00:16,689 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:00:16,690 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:00:16,690 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:00:16,691 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:00:16,691 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:00:16,692 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:00:16,692 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:00:16,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:00:16,693 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:00:16,693 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:00:16,693 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:00:16,693 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 07:00:16,694 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 07:00:16,694 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:00:16,694 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:00:16,694 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:00:16,695 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:00:16,695 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:00:16,695 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 07:00:16,695 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_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 434b16a64b06ae36ef836c68b9042912d6cf793be5a1688bb3a25d59d1194c23 [2023-11-29 07:00:16,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:00:17,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:00:17,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:00:17,005 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:00:17,005 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:00:17,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i [2023-11-29 07:00:19,829 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:00:20,025 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:00:20,026 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i [2023-11-29 07:00:20,036 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/data/6e9a58242/2093e063c5ea469ba6cbfdaaad32435d/FLAG6a29e1c6e [2023-11-29 07:00:20,052 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/data/6e9a58242/2093e063c5ea469ba6cbfdaaad32435d [2023-11-29 07:00:20,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:00:20,057 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:00:20,058 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:00:20,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:00:20,064 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:00:20,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:00:20" (1/1) ... [2023-11-29 07:00:20,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f1b6158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:20, skipping insertion in model container [2023-11-29 07:00:20,066 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:00:20" (1/1) ... [2023-11-29 07:00:20,092 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:00:20,271 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_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i[916,929] [2023-11-29 07:00:20,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:00:20,327 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:00:20,341 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_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i[916,929] [2023-11-29 07:00:20,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:00:20,380 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:00:20,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:20 WrapperNode [2023-11-29 07:00:20,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:00:20,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:00:20,382 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:00:20,382 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:00:20,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:20" (1/1) ... [2023-11-29 07:00:20,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:20" (1/1) ... [2023-11-29 07:00:20,426 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 98 [2023-11-29 07:00:20,427 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:00:20,428 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:00:20,428 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:00:20,428 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:00:20,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:20" (1/1) ... [2023-11-29 07:00:20,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:20" (1/1) ... [2023-11-29 07:00:20,444 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:20" (1/1) ... [2023-11-29 07:00:20,458 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 07:00:20,459 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:20" (1/1) ... [2023-11-29 07:00:20,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:20" (1/1) ... [2023-11-29 07:00:20,467 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:20" (1/1) ... [2023-11-29 07:00:20,471 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:20" (1/1) ... [2023-11-29 07:00:20,473 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:20" (1/1) ... [2023-11-29 07:00:20,475 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:20" (1/1) ... [2023-11-29 07:00:20,479 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:00:20,480 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:00:20,480 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:00:20,480 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:00:20,481 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:20" (1/1) ... [2023-11-29 07:00:20,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:00:20,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:20,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:00:20,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:00:20,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:00:20,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 07:00:20,548 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 07:00:20,548 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 07:00:20,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:00:20,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:00:20,636 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:00:20,639 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:00:20,887 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:00:20,955 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:00:20,955 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 07:00:20,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:00:20 BoogieIcfgContainer [2023-11-29 07:00:20,956 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:00:20,959 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:00:20,959 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:00:20,962 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:00:20,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:00:20" (1/3) ... [2023-11-29 07:00:20,963 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccec348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:00:20, skipping insertion in model container [2023-11-29 07:00:20,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:00:20" (2/3) ... [2023-11-29 07:00:20,963 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccec348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:00:20, skipping insertion in model container [2023-11-29 07:00:20,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:00:20" (3/3) ... [2023-11-29 07:00:20,965 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-79.i [2023-11-29 07:00:20,983 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:00:20,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 07:00:21,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:00:21,041 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;@729bbc6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:00:21,041 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 07:00:21,045 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:00:21,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 07:00:21,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:21,055 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:00:21,055 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:00:21,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:21,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1990728004, now seen corresponding path program 1 times [2023-11-29 07:00:21,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:00:21,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049900218] [2023-11-29 07:00:21,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:21,073 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 [2023-11-29 07:00:21,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:00:21,074 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 07:00:21,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 07:00:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:21,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 07:00:21,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:21,265 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-29 07:00:21,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:00:21,266 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:00:21,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049900218] [2023-11-29 07:00:21,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1049900218] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:21,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:21,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:00:21,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297040151] [2023-11-29 07:00:21,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:21,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 07:00:21,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:00:21,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 07:00:21,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:00:21,305 INFO L87 Difference]: Start difference. First operand has 42 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 07:00:21,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:21,355 INFO L93 Difference]: Finished difference Result 81 states and 140 transitions. [2023-11-29 07:00:21,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 07:00:21,359 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2023-11-29 07:00:21,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:21,366 INFO L225 Difference]: With dead ends: 81 [2023-11-29 07:00:21,366 INFO L226 Difference]: Without dead ends: 40 [2023-11-29 07:00:21,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:00:21,374 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:21,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:00:21,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-29 07:00:21,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-29 07:00:21,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:00:21,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 59 transitions. [2023-11-29 07:00:21,419 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 59 transitions. Word has length 87 [2023-11-29 07:00:21,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:21,420 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 59 transitions. [2023-11-29 07:00:21,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 07:00:21,420 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 59 transitions. [2023-11-29 07:00:21,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 07:00:21,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:21,425 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:00:21,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 07:00:21,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 07:00:21,629 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:00:21,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:21,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1990912644, now seen corresponding path program 1 times [2023-11-29 07:00:21,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:00:21,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612051584] [2023-11-29 07:00:21,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:21,631 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 [2023-11-29 07:00:21,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:00:21,633 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 07:00:21,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 07:00:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:21,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:00:21,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:21,862 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-29 07:00:21,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:00:21,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:00:21,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612051584] [2023-11-29 07:00:21,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612051584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:21,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:21,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 07:00:21,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681337155] [2023-11-29 07:00:21,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:21,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:00:21,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:00:21,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:00:21,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:00:21,868 INFO L87 Difference]: Start difference. First operand 40 states and 59 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:00:22,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:22,147 INFO L93 Difference]: Finished difference Result 87 states and 124 transitions. [2023-11-29 07:00:22,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:00:22,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2023-11-29 07:00:22,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:22,151 INFO L225 Difference]: With dead ends: 87 [2023-11-29 07:00:22,152 INFO L226 Difference]: Without dead ends: 48 [2023-11-29 07:00:22,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:00:22,154 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 64 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:22,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 77 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:00:22,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-29 07:00:22,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2023-11-29 07:00:22,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:00:22,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2023-11-29 07:00:22,168 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 87 [2023-11-29 07:00:22,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:22,169 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2023-11-29 07:00:22,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:00:22,170 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2023-11-29 07:00:22,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 07:00:22,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:22,172 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:00:22,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 07:00:22,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 07:00:22,380 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:00:22,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:22,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1598081109, now seen corresponding path program 1 times [2023-11-29 07:00:22,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:00:22,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097654525] [2023-11-29 07:00:22,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:22,382 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 [2023-11-29 07:00:22,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:00:22,383 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 07:00:22,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 07:00:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:22,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:00:22,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:02:15,136 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 165 proven. 27 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 07:02:15,136 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:04:57,871 WARN L293 SmtUtils]: Spent 10.45s on a formula simplification that was a NOOP. DAG size: 204 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:05:20,313 WARN L293 SmtUtils]: Spent 6.24s on a formula simplification that was a NOOP. DAG size: 168 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:05:51,830 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 07:05:51,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:05:51,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097654525] [2023-11-29 07:05:51,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2097654525] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 07:05:51,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:05:51,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 19 [2023-11-29 07:05:51,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972665582] [2023-11-29 07:05:51,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:05:51,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:05:51,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:05:51,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:05:51,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2023-11-29 07:05:51,835 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:06:21,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:21,776 INFO L93 Difference]: Finished difference Result 56 states and 74 transitions. [2023-11-29 07:06:21,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:06:21,778 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 88 [2023-11-29 07:06:21,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:21,780 INFO L225 Difference]: With dead ends: 56 [2023-11-29 07:06:21,780 INFO L226 Difference]: Without dead ends: 54 [2023-11-29 07:06:21,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 50.4s TimeCoverageRelationStatistics Valid=118, Invalid=478, Unknown=4, NotChecked=0, Total=600 [2023-11-29 07:06:21,781 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 37 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:21,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 215 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 07:06:21,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-29 07:06:21,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2023-11-29 07:06:21,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 35 states have (on average 1.2) internal successors, (42), 35 states have internal predecessors, (42), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:06:21,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 70 transitions. [2023-11-29 07:06:21,791 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 70 transitions. Word has length 88 [2023-11-29 07:06:21,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:21,792 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 70 transitions. [2023-11-29 07:06:21,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:06:21,792 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 70 transitions. [2023-11-29 07:06:21,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 07:06:21,793 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:21,794 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:21,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 07:06:21,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 07:06:21,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:06:21,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:21,995 INFO L85 PathProgramCache]: Analyzing trace with hash -518172434, now seen corresponding path program 1 times [2023-11-29 07:06:21,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:06:21,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030048057] [2023-11-29 07:06:21,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:21,996 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 [2023-11-29 07:06:21,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:06:21,997 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 07:06:21,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 07:06:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:22,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 07:06:22,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:20,113 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 165 proven. 27 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 07:07:20,113 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:25,969 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 07:09:25,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:25,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030048057] [2023-11-29 07:09:25,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030048057] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:25,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:09:25,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 21 [2023-11-29 07:09:25,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096108477] [2023-11-29 07:09:25,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:25,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:09:25,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:25,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:09:25,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2023-11-29 07:09:25,973 INFO L87 Difference]: Start difference. First operand 52 states and 70 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:09:51,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:51,304 INFO L93 Difference]: Finished difference Result 55 states and 73 transitions. [2023-11-29 07:09:51,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:09:51,307 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 89 [2023-11-29 07:09:51,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:51,308 INFO L225 Difference]: With dead ends: 55 [2023-11-29 07:09:51,308 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 07:09:51,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 25.9s TimeCoverageRelationStatistics Valid=154, Invalid=601, Unknown=1, NotChecked=0, Total=756 [2023-11-29 07:09:51,310 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 32 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:51,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 233 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-29 07:09:51,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 07:09:51,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 07:09:51,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:51,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 07:09:51,312 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2023-11-29 07:09:51,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:51,312 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 07:09:51,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 07:09:51,313 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 07:09:51,313 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 07:09:51,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 07:09:51,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 07:09:51,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 07:09:51,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 07:09:52,568 INFO L895 garLoopResultBuilder]: At program point L97-2(lines 97 103) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-11-29 07:09:52,568 INFO L899 garLoopResultBuilder]: For program point L97-3(lines 97 103) no Hoare annotation was computed. [2023-11-29 07:09:52,568 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 62) no Hoare annotation was computed. [2023-11-29 07:09:52,568 INFO L899 garLoopResultBuilder]: For program point L85(lines 64 86) no Hoare annotation was computed. [2023-11-29 07:09:52,569 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-29 07:09:52,569 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-29 07:09:52,569 INFO L895 garLoopResultBuilder]: At program point L81(line 81) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-11-29 07:09:52,569 INFO L895 garLoopResultBuilder]: At program point L81-1(line 81) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-11-29 07:09:52,569 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 54) no Hoare annotation was computed. [2023-11-29 07:09:52,569 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-29 07:09:52,569 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 48 54) no Hoare annotation was computed. [2023-11-29 07:09:52,570 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-11-29 07:09:52,570 INFO L895 garLoopResultBuilder]: At program point L69(line 69) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-11-29 07:09:52,570 INFO L895 garLoopResultBuilder]: At program point L69-1(line 69) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-11-29 07:09:52,570 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 63) no Hoare annotation was computed. [2023-11-29 07:09:52,570 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 61) no Hoare annotation was computed. [2023-11-29 07:09:52,570 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-29 07:09:52,571 INFO L899 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2023-11-29 07:09:52,571 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2023-11-29 07:09:52,571 INFO L895 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-11-29 07:09:52,571 INFO L895 garLoopResultBuilder]: At program point L78-1(line 78) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-11-29 07:09:52,571 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2023-11-29 07:09:52,571 INFO L895 garLoopResultBuilder]: At program point L66(line 66) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-11-29 07:09:52,571 INFO L895 garLoopResultBuilder]: At program point L66-1(line 66) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-11-29 07:09:52,572 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 07:09:52,572 INFO L899 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2023-11-29 07:09:52,572 INFO L895 garLoopResultBuilder]: At program point L75(line 75) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-11-29 07:09:52,572 INFO L895 garLoopResultBuilder]: At program point L75-1(line 75) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-11-29 07:09:52,572 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 07:09:52,572 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 46) no Hoare annotation was computed. [2023-11-29 07:09:52,572 INFO L899 garLoopResultBuilder]: For program point L38-1(lines 38 46) no Hoare annotation was computed. [2023-11-29 07:09:52,573 INFO L899 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2023-11-29 07:09:52,573 INFO L895 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32)) [2023-11-29 07:09:52,573 INFO L895 garLoopResultBuilder]: At program point L84-1(line 84) the Hoare annotation is: (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32)) [2023-11-29 07:09:52,573 INFO L899 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2023-11-29 07:09:52,573 INFO L895 garLoopResultBuilder]: At program point L72(line 72) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-11-29 07:09:52,573 INFO L895 garLoopResultBuilder]: At program point L72-1(line 72) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-11-29 07:09:52,574 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 43) no Hoare annotation was computed. [2023-11-29 07:09:52,574 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-29 07:09:52,574 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-29 07:09:52,574 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-29 07:09:52,574 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-29 07:09:52,577 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-29 07:09:52,580 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 07:09:52,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:09:52 BoogieIcfgContainer [2023-11-29 07:09:52,589 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 07:09:52,590 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 07:09:52,590 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 07:09:52,590 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 07:09:52,591 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:00:20" (3/4) ... [2023-11-29 07:09:52,594 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 07:09:52,598 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-29 07:09:52,605 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-29 07:09:52,606 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-29 07:09:52,606 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 07:09:52,606 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 07:09:52,784 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 07:09:52,785 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 07:09:52,785 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 07:09:52,786 INFO L158 Benchmark]: Toolchain (without parser) took 572729.28ms. Allocated memory was 67.1MB in the beginning and 1.2GB in the end (delta: 1.2GB). Free memory was 34.2MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 491.2MB. Max. memory is 16.1GB. [2023-11-29 07:09:52,787 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 67.1MB. Free memory was 43.5MB in the beginning and 43.4MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 07:09:52,788 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.30ms. Allocated memory was 67.1MB in the beginning and 107.0MB in the end (delta: 39.8MB). Free memory was 34.0MB in the beginning and 79.0MB in the end (delta: -45.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2023-11-29 07:09:52,788 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.93ms. Allocated memory is still 107.0MB. Free memory was 79.0MB in the beginning and 77.0MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 07:09:52,789 INFO L158 Benchmark]: Boogie Preprocessor took 51.30ms. Allocated memory is still 107.0MB. Free memory was 77.0MB in the beginning and 74.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 07:09:52,789 INFO L158 Benchmark]: RCFGBuilder took 476.33ms. Allocated memory is still 107.0MB. Free memory was 74.6MB in the beginning and 83.4MB in the end (delta: -8.8MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2023-11-29 07:09:52,790 INFO L158 Benchmark]: TraceAbstraction took 571630.75ms. Allocated memory was 107.0MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 82.2MB in the beginning and 725.8MB in the end (delta: -643.6MB). Peak memory consumption was 492.2MB. Max. memory is 16.1GB. [2023-11-29 07:09:52,791 INFO L158 Benchmark]: Witness Printer took 195.16ms. Allocated memory is still 1.2GB. Free memory was 725.8MB in the beginning and 1.2GB in the end (delta: -480.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 07:09:52,795 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 67.1MB. Free memory was 43.5MB in the beginning and 43.4MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.30ms. Allocated memory was 67.1MB in the beginning and 107.0MB in the end (delta: 39.8MB). Free memory was 34.0MB in the beginning and 79.0MB in the end (delta: -45.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.93ms. Allocated memory is still 107.0MB. Free memory was 79.0MB in the beginning and 77.0MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.30ms. Allocated memory is still 107.0MB. Free memory was 77.0MB in the beginning and 74.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 476.33ms. Allocated memory is still 107.0MB. Free memory was 74.6MB in the beginning and 83.4MB in the end (delta: -8.8MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * TraceAbstraction took 571630.75ms. Allocated memory was 107.0MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 82.2MB in the beginning and 725.8MB in the end (delta: -643.6MB). Peak memory consumption was 492.2MB. Max. memory is 16.1GB. * Witness Printer took 195.16ms. Allocated memory is still 1.2GB. Free memory was 725.8MB in the beginning and 1.2GB in the end (delta: -480.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 571.6s, OverallIterations: 4, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 55.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 135 SdHoareTripleChecker+Valid, 6.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 581 SdHoareTripleChecker+Invalid, 6.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 397 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 385 IncrementalHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 184 mSDtfsCounter, 385 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 543 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 76.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=3, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 57 PreInvPairs, 74 NumberOfFragments, 126 HoareAnnotationTreeSize, 57 FomulaSimplifications, 50 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 467 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 513.4s InterpolantComputationTime, 351 NumberOfCodeBlocks, 351 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 522 ConstructedInterpolants, 6 QuantifiedInterpolants, 22168 SizeOfPredicates, 48 NumberOfNonLiveVariables, 581 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 2130/2184 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: ((var_1_13 <= 0) && (var_1_12 <= 0)) RESULT: Ultimate proved your program to be correct! [2023-11-29 07:09:52,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206cecc2-7fb2-4c14-9ce9-1d82235ca4c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE