./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-35.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_2eb7db29-f295-4737-94f2-d9499f1b4fea/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7db29-f295-4737-94f2-d9499f1b4fea/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7db29-f295-4737-94f2-d9499f1b4fea/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7db29-f295-4737-94f2-d9499f1b4fea/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-35.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7db29-f295-4737-94f2-d9499f1b4fea/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7db29-f295-4737-94f2-d9499f1b4fea/bin/uautomizer-verify-jihMAELWvX --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 3a4c213194d0d302ccf39bf2760a513e73fc81c5efa3fff556483cb0c00b1161 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:55:31,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:55:31,253 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7db29-f295-4737-94f2-d9499f1b4fea/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:55:31,259 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:55:31,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:55:31,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:55:31,293 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:55:31,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:55:31,294 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:55:31,295 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:55:31,295 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:55:31,295 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:55:31,296 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:55:31,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:55:31,297 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:55:31,300 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:55:31,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:55:31,303 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:55:31,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:55:31,307 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:55:31,308 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:55:31,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:55:31,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:55:31,309 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:55:31,310 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:55:31,310 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:55:31,310 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:55:31,311 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:55:31,311 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:55:31,311 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:55:31,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:55:31,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:55:31,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:55:31,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:55:31,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:55:31,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:55:31,318 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:55:31,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:55:31,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:55:31,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:55:31,320 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:55:31,320 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:55:31,320 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_2eb7db29-f295-4737-94f2-d9499f1b4fea/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7db29-f295-4737-94f2-d9499f1b4fea/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a4c213194d0d302ccf39bf2760a513e73fc81c5efa3fff556483cb0c00b1161 [2024-11-08 18:55:31,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:55:31,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:55:31,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:55:31,740 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:55:31,740 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:55:31,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7db29-f295-4737-94f2-d9499f1b4fea/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-35.i Unable to find full path for "g++" [2024-11-08 18:55:34,277 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:55:34,579 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:55:34,579 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7db29-f295-4737-94f2-d9499f1b4fea/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-35.i [2024-11-08 18:55:34,590 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7db29-f295-4737-94f2-d9499f1b4fea/bin/uautomizer-verify-jihMAELWvX/data/b7bd103b8/275b0e009c4e4f59bd9d4e22f351263b/FLAGbe819debf [2024-11-08 18:55:34,609 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7db29-f295-4737-94f2-d9499f1b4fea/bin/uautomizer-verify-jihMAELWvX/data/b7bd103b8/275b0e009c4e4f59bd9d4e22f351263b [2024-11-08 18:55:34,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:55:34,614 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:55:34,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:55:34,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:55:34,623 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:55:34,624 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:55:34" (1/1) ... [2024-11-08 18:55:34,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e9f3e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:34, skipping insertion in model container [2024-11-08 18:55:34,629 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:55:34" (1/1) ... [2024-11-08 18:55:34,665 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:55:34,895 WARN L250 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_2eb7db29-f295-4737-94f2-d9499f1b4fea/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-35.i[916,929] [2024-11-08 18:55:34,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:55:34,975 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:55:34,991 WARN L250 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_2eb7db29-f295-4737-94f2-d9499f1b4fea/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-35.i[916,929] [2024-11-08 18:55:35,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:55:35,048 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:55:35,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:35 WrapperNode [2024-11-08 18:55:35,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:55:35,050 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:55:35,050 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:55:35,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:55:35,061 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:35" (1/1) ... [2024-11-08 18:55:35,069 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:35" (1/1) ... [2024-11-08 18:55:35,117 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 122 [2024-11-08 18:55:35,117 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:55:35,119 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:55:35,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:55:35,119 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:55:35,146 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:35" (1/1) ... [2024-11-08 18:55:35,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:35" (1/1) ... [2024-11-08 18:55:35,150 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:35" (1/1) ... [2024-11-08 18:55:35,165 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]. [2024-11-08 18:55:35,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:35" (1/1) ... [2024-11-08 18:55:35,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:35" (1/1) ... [2024-11-08 18:55:35,172 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:35" (1/1) ... [2024-11-08 18:55:35,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:35" (1/1) ... [2024-11-08 18:55:35,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:35" (1/1) ... [2024-11-08 18:55:35,180 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:35" (1/1) ... [2024-11-08 18:55:35,183 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:55:35,184 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:55:35,184 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:55:35,184 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:55:35,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:35" (1/1) ... [2024-11-08 18:55:35,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:55:35,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7db29-f295-4737-94f2-d9499f1b4fea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:35,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7db29-f295-4737-94f2-d9499f1b4fea/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:55:35,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb7db29-f295-4737-94f2-d9499f1b4fea/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:55:35,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:55:35,293 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:55:35,294 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:55:35,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:55:35,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:55:35,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:55:35,418 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:55:35,423 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:55:35,811 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-08 18:55:35,812 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:55:35,844 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:55:35,846 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:55:35,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:55:35 BoogieIcfgContainer [2024-11-08 18:55:35,847 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:55:35,850 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:55:35,850 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:55:35,854 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:55:35,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:55:34" (1/3) ... [2024-11-08 18:55:35,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eacbb0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:55:35, skipping insertion in model container [2024-11-08 18:55:35,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:35" (2/3) ... [2024-11-08 18:55:35,856 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eacbb0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:55:35, skipping insertion in model container [2024-11-08 18:55:35,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:55:35" (3/3) ... [2024-11-08 18:55:35,858 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-35.i [2024-11-08 18:55:35,882 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:55:35,882 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:55:35,973 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:55:35,984 INFO L333 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, 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;@2c826403, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:55:35,984 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:55:35,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:55:36,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 18:55:36,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:36,018 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:36,019 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:36,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:36,029 INFO L85 PathProgramCache]: Analyzing trace with hash 442029071, now seen corresponding path program 1 times [2024-11-08 18:55:36,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:36,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475153709] [2024-11-08 18:55:36,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:36,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:55:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 18:55:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 18:55:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 18:55:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 18:55:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:55:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:55:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:55:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 18:55:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 18:55:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:55:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:55:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:55:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:55:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:55:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 18:55:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 18:55:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 18:55:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 18:55:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 18:55:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:36,726 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-08 18:55:36,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:36,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475153709] [2024-11-08 18:55:36,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475153709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:36,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:36,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:55:36,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341639231] [2024-11-08 18:55:36,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:36,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:55:36,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:36,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:55:36,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:55:36,775 INFO L87 Difference]: Start difference. First operand has 56 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-08 18:55:36,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:36,813 INFO L93 Difference]: Finished difference Result 105 states and 182 transitions. [2024-11-08 18:55:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:55:36,816 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 125 [2024-11-08 18:55:36,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:36,827 INFO L225 Difference]: With dead ends: 105 [2024-11-08 18:55:36,827 INFO L226 Difference]: Without dead ends: 52 [2024-11-08 18:55:36,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:55:36,836 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:36,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:55:36,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-08 18:55:36,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-08 18:55:36,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:55:36,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2024-11-08 18:55:36,920 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 125 [2024-11-08 18:55:36,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:36,921 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2024-11-08 18:55:36,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-08 18:55:36,921 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2024-11-08 18:55:36,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 18:55:36,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:36,928 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:36,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:55:36,929 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:36,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:36,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1733311503, now seen corresponding path program 1 times [2024-11-08 18:55:36,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:36,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174216671] [2024-11-08 18:55:36,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:36,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:55:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 18:55:37,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 18:55:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 18:55:37,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 18:55:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:55:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:55:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:55:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 18:55:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 18:55:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:55:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:55:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:55:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:55:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:55:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 18:55:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 18:55:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 18:55:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 18:55:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 18:55:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,388 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-08 18:55:37,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:37,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174216671] [2024-11-08 18:55:37,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174216671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:37,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:37,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:55:37,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360581753] [2024-11-08 18:55:37,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:37,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:55:37,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:37,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:55:37,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:55:37,393 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-08 18:55:37,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:37,508 INFO L93 Difference]: Finished difference Result 148 states and 221 transitions. [2024-11-08 18:55:37,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:55:37,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 125 [2024-11-08 18:55:37,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:37,516 INFO L225 Difference]: With dead ends: 148 [2024-11-08 18:55:37,517 INFO L226 Difference]: Without dead ends: 99 [2024-11-08 18:55:37,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:55:37,519 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 70 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:37,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 144 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:55:37,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-08 18:55:37,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 53. [2024-11-08 18:55:37,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:55:37,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 77 transitions. [2024-11-08 18:55:37,553 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 77 transitions. Word has length 125 [2024-11-08 18:55:37,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:37,558 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 77 transitions. [2024-11-08 18:55:37,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-08 18:55:37,559 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 77 transitions. [2024-11-08 18:55:37,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 18:55:37,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:37,562 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:37,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:55:37,563 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:37,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:37,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1790569805, now seen corresponding path program 1 times [2024-11-08 18:55:37,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:37,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663460306] [2024-11-08 18:55:37,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:37,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:55:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 18:55:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 18:55:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 18:55:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 18:55:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:55:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:55:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:55:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 18:55:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 18:55:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:55:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:55:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:55:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:55:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:55:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 18:55:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 18:55:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 18:55:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 18:55:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 18:55:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:41,256 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-08 18:55:41,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:41,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663460306] [2024-11-08 18:55:41,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663460306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:41,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:41,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:55:41,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816434331] [2024-11-08 18:55:41,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:41,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:55:41,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:41,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:55:41,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:55:41,266 INFO L87 Difference]: Start difference. First operand 53 states and 77 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-08 18:55:41,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:41,745 INFO L93 Difference]: Finished difference Result 149 states and 207 transitions. [2024-11-08 18:55:41,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:55:41,746 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 125 [2024-11-08 18:55:41,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:41,748 INFO L225 Difference]: With dead ends: 149 [2024-11-08 18:55:41,749 INFO L226 Difference]: Without dead ends: 99 [2024-11-08 18:55:41,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:55:41,751 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 62 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:41,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 326 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:55:41,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-08 18:55:41,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 61. [2024-11-08 18:55:41,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 39 states have internal predecessors, (48), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:55:41,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 88 transitions. [2024-11-08 18:55:41,772 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 88 transitions. Word has length 125 [2024-11-08 18:55:41,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:41,777 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 88 transitions. [2024-11-08 18:55:41,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-08 18:55:41,778 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 88 transitions. [2024-11-08 18:55:41,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 18:55:41,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:41,784 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:41,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:55:41,784 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:41,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:41,785 INFO L85 PathProgramCache]: Analyzing trace with hash -729390129, now seen corresponding path program 1 times [2024-11-08 18:55:41,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:41,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348938946] [2024-11-08 18:55:41,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:41,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat