./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC --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 97ff03298340a9336a03e9d19ed0d00b1afc963b5be61528526d9d1b67b2a323 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:44:18,922 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:44:19,006 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 18:44:19,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:44:19,018 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:44:19,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:44:19,057 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:44:19,057 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:44:19,058 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:44:19,058 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:44:19,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:44:19,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:44:19,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:44:19,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:44:19,059 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:44:19,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:44:19,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:44:19,060 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:44:19,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:44:19,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:44:19,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:44:19,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:44:19,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:44:19,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:44:19,061 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:44:19,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:44:19,061 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:44:19,062 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:44:19,062 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:44:19,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:44:19,062 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:44:19,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:44:19,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:44:19,063 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:44:19,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:44:19,063 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:44:19,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:44:19,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:44:19,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:44:19,063 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:44:19,064 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:44:19,064 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:44:19,064 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:44:19,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:44:19,064 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:44:19,064 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:44:19,064 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:44:19,064 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:44:19,064 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC 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 -> 97ff03298340a9336a03e9d19ed0d00b1afc963b5be61528526d9d1b67b2a323 [2024-11-23 18:44:19,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:44:19,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:44:19,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:44:19,484 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:44:19,485 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:44:19,486 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i [2024-11-23 18:44:23,355 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/data/17cd6c387/eda6900d8bfa47a29d40b51857b69434/FLAG46cc4ade5 [2024-11-23 18:44:23,703 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:44:23,704 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i [2024-11-23 18:44:23,714 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/data/17cd6c387/eda6900d8bfa47a29d40b51857b69434/FLAG46cc4ade5 [2024-11-23 18:44:23,733 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/data/17cd6c387/eda6900d8bfa47a29d40b51857b69434 [2024-11-23 18:44:23,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:44:23,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:44:23,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:44:23,740 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:44:23,746 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:44:23,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:44:23" (1/1) ... [2024-11-23 18:44:23,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e34f6dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:23, skipping insertion in model container [2024-11-23 18:44:23,749 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:44:23" (1/1) ... [2024-11-23 18:44:23,771 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:44:23,946 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_84422707-1ff6-43b2-a441-f520c1dc7743/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i[916,929] [2024-11-23 18:44:24,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:44:24,037 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:44:24,057 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_84422707-1ff6-43b2-a441-f520c1dc7743/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i[916,929] [2024-11-23 18:44:24,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:44:24,139 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:44:24,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:24 WrapperNode [2024-11-23 18:44:24,141 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:44:24,142 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:44:24,143 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:44:24,143 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:44:24,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:24" (1/1) ... [2024-11-23 18:44:24,175 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:24" (1/1) ... [2024-11-23 18:44:24,223 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 144 [2024-11-23 18:44:24,227 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:44:24,228 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:44:24,228 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:44:24,228 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:44:24,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:24" (1/1) ... [2024-11-23 18:44:24,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:24" (1/1) ... [2024-11-23 18:44:24,246 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:24" (1/1) ... [2024-11-23 18:44:24,280 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]. [2024-11-23 18:44:24,283 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:24" (1/1) ... [2024-11-23 18:44:24,283 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:24" (1/1) ... [2024-11-23 18:44:24,297 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:24" (1/1) ... [2024-11-23 18:44:24,298 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:24" (1/1) ... [2024-11-23 18:44:24,307 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:24" (1/1) ... [2024-11-23 18:44:24,312 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:24" (1/1) ... [2024-11-23 18:44:24,314 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:24" (1/1) ... [2024-11-23 18:44:24,320 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:44:24,321 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:44:24,325 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:44:24,325 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:44:24,326 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:24" (1/1) ... [2024-11-23 18:44:24,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:44:24,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:44:24,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:44:24,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:44:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:44:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:44:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:44:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:44:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:44:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:44:24,526 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:44:24,528 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:44:24,938 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-23 18:44:24,938 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:44:24,955 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:44:24,955 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 18:44:24,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:44:24 BoogieIcfgContainer [2024-11-23 18:44:24,956 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:44:24,959 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:44:24,959 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:44:24,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:44:24,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:44:23" (1/3) ... [2024-11-23 18:44:24,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479348bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:44:24, skipping insertion in model container [2024-11-23 18:44:24,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:24" (2/3) ... [2024-11-23 18:44:24,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479348bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:44:24, skipping insertion in model container [2024-11-23 18:44:24,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:44:24" (3/3) ... [2024-11-23 18:44:24,969 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-97.i [2024-11-23 18:44:24,988 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:44:24,990 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-97.i that has 2 procedures, 64 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 18:44:25,078 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:44:25,101 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;@72afb3ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:44:25,102 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:44:25,107 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 18:44:25,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 18:44:25,126 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:25,126 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:25,128 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:25,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:25,139 INFO L85 PathProgramCache]: Analyzing trace with hash 273559296, now seen corresponding path program 1 times [2024-11-23 18:44:25,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:25,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273685806] [2024-11-23 18:44:25,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:25,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:25,527 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-23 18:44:25,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:25,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273685806] [2024-11-23 18:44:25,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273685806] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:44:25,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190872849] [2024-11-23 18:44:25,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:25,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:44:25,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:44:25,533 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:44:25,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:44:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:25,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:44:25,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:44:25,772 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-23 18:44:25,776 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:44:25,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190872849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:25,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:44:25,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 18:44:25,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677922269] [2024-11-23 18:44:25,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:25,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:44:25,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:25,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:44:25,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:44:25,821 INFO L87 Difference]: Start difference. First operand has 64 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 18:44:25,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:25,873 INFO L93 Difference]: Finished difference Result 121 states and 206 transitions. [2024-11-23 18:44:25,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:44:25,876 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113 [2024-11-23 18:44:25,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:25,888 INFO L225 Difference]: With dead ends: 121 [2024-11-23 18:44:25,889 INFO L226 Difference]: Without dead ends: 60 [2024-11-23 18:44:25,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:44:25,900 INFO L435 NwaCegarLoop]: 90 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, 90 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 [2024-11-23 18:44:25,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:44:25,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-23 18:44:25,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-23 18:44:25,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 40 states have (on average 1.35) internal successors, (54), 40 states have internal predecessors, (54), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 18:44:25,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 90 transitions. [2024-11-23 18:44:25,957 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 90 transitions. Word has length 113 [2024-11-23 18:44:25,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:25,958 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 90 transitions. [2024-11-23 18:44:25,958 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 18:44:25,958 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 90 transitions. [2024-11-23 18:44:25,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 18:44:25,961 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:25,962 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:25,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 18:44:26,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 18:44:26,163 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:26,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:26,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1565859904, now seen corresponding path program 1 times [2024-11-23 18:44:26,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:26,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344161992] [2024-11-23 18:44:26,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:26,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:28,264 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 18:44:28,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:28,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344161992] [2024-11-23 18:44:28,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344161992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:28,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:28,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:44:28,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549379759] [2024-11-23 18:44:28,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:28,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:44:28,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:28,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:44:28,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:44:28,270 INFO L87 Difference]: Start difference. First operand 60 states and 90 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 18:44:28,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:28,625 INFO L93 Difference]: Finished difference Result 136 states and 203 transitions. [2024-11-23 18:44:28,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:44:28,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113 [2024-11-23 18:44:28,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:28,631 INFO L225 Difference]: With dead ends: 136 [2024-11-23 18:44:28,631 INFO L226 Difference]: Without dead ends: 79 [2024-11-23 18:44:28,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:44:28,636 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 20 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:28,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 221 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:44:28,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-23 18:44:28,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 62. [2024-11-23 18:44:28,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 42 states have internal predecessors, (56), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 18:44:28,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 92 transitions. [2024-11-23 18:44:28,660 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 92 transitions. Word has length 113 [2024-11-23 18:44:28,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:28,662 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 92 transitions. [2024-11-23 18:44:28,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 18:44:28,662 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 92 transitions. [2024-11-23 18:44:28,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 18:44:28,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:28,665 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:28,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:44:28,665 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:28,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:28,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1869013579, now seen corresponding path program 1 times [2024-11-23 18:44:28,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:28,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050934923] [2024-11-23 18:44:28,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:28,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:30,166 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 18:44:30,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:30,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050934923] [2024-11-23 18:44:30,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050934923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:30,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:30,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:44:30,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426230891] [2024-11-23 18:44:30,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:30,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:44:30,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:30,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:44:30,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:44:30,172 INFO L87 Difference]: Start difference. First operand 62 states and 92 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 18:44:31,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:31,215 INFO L93 Difference]: Finished difference Result 226 states and 336 transitions. [2024-11-23 18:44:31,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 18:44:31,215 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-11-23 18:44:31,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:31,219 INFO L225 Difference]: With dead ends: 226 [2024-11-23 18:44:31,219 INFO L226 Difference]: Without dead ends: 167 [2024-11-23 18:44:31,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:44:31,221 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 167 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:31,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 396 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 18:44:31,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-23 18:44:31,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 67. [2024-11-23 18:44:31,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 47 states have internal predecessors, (63), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 18:44:31,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 99 transitions. [2024-11-23 18:44:31,238 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 99 transitions. Word has length 115 [2024-11-23 18:44:31,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:31,238 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 99 transitions. [2024-11-23 18:44:31,239 INFO L472 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 18:44:31,239 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 99 transitions. [2024-11-23 18:44:31,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 18:44:31,241 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:31,241 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:31,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:44:31,241 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:31,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:31,242 INFO L85 PathProgramCache]: Analyzing trace with hash -2100365159, now seen corresponding path program 1 times [2024-11-23 18:44:31,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:31,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222247271] [2024-11-23 18:44:31,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:31,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:32,039 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 63 proven. 33 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-11-23 18:44:32,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:32,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222247271] [2024-11-23 18:44:32,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222247271] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:44:32,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725885454] [2024-11-23 18:44:32,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:32,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:44:32,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:44:32,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:44:32,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 18:44:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:32,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 18:44:32,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:44:32,646 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 348 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 18:44:32,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:44:33,208 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 63 proven. 36 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-11-23 18:44:33,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725885454] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:44:33,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:44:33,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 15 [2024-11-23 18:44:33,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506834504] [2024-11-23 18:44:33,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:44:33,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 18:44:33,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:33,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 18:44:33,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-11-23 18:44:33,215 INFO L87 Difference]: Start difference. First operand 67 states and 99 transitions. Second operand has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 3 states have call successors, (25), 3 states have call predecessors, (25), 7 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-23 18:44:34,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:34,051 INFO L93 Difference]: Finished difference Result 163 states and 237 transitions. [2024-11-23 18:44:34,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 18:44:34,052 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 3 states have call successors, (25), 3 states have call predecessors, (25), 7 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 115 [2024-11-23 18:44:34,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:34,056 INFO L225 Difference]: With dead ends: 163 [2024-11-23 18:44:34,056 INFO L226 Difference]: Without dead ends: 99 [2024-11-23 18:44:34,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 224 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=205, Invalid=445, Unknown=0, NotChecked=0, Total=650 [2024-11-23 18:44:34,061 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 140 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:34,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 231 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 18:44:34,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-23 18:44:34,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 84. [2024-11-23 18:44:34,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 53 states have internal predecessors, (62), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-23 18:44:34,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 118 transitions. [2024-11-23 18:44:34,098 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 118 transitions. Word has length 115 [2024-11-23 18:44:34,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:34,098 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 118 transitions. [2024-11-23 18:44:34,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 3 states have call successors, (25), 3 states have call predecessors, (25), 7 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-23 18:44:34,102 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 118 transitions. [2024-11-23 18:44:34,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-23 18:44:34,103 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:34,104 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:34,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 18:44:34,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:44:34,304 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:34,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:34,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1316545057, now seen corresponding path program 1 times [2024-11-23 18:44:34,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:34,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583217855] [2024-11-23 18:44:34,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:34,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:36,873 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 63 proven. 33 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-11-23 18:44:36,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:36,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583217855] [2024-11-23 18:44:36,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583217855] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:44:36,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584660797] [2024-11-23 18:44:36,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:36,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:44:36,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:44:36,877 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:44:36,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 18:44:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:37,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-23 18:44:37,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:44:39,162 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 408 proven. 72 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-23 18:44:39,163 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:44:42,891 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 102 proven. 42 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-11-23 18:44:42,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584660797] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:44:42,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:44:42,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 21, 19] total 45 [2024-11-23 18:44:42,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673900157] [2024-11-23 18:44:42,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:44:42,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-23 18:44:42,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:42,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-23 18:44:42,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=1545, Unknown=0, NotChecked=0, Total=1980 [2024-11-23 18:44:42,903 INFO L87 Difference]: Start difference. First operand 84 states and 118 transitions. Second operand has 45 states, 45 states have (on average 2.111111111111111) internal successors, (95), 45 states have internal predecessors, (95), 10 states have call successors, (41), 5 states have call predecessors, (41), 12 states have return successors, (43), 10 states have call predecessors, (43), 10 states have call successors, (43) [2024-11-23 18:44:46,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:46,507 INFO L93 Difference]: Finished difference Result 162 states and 205 transitions. [2024-11-23 18:44:46,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-23 18:44:46,508 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 2.111111111111111) internal successors, (95), 45 states have internal predecessors, (95), 10 states have call successors, (41), 5 states have call predecessors, (41), 12 states have return successors, (43), 10 states have call predecessors, (43), 10 states have call successors, (43) Word has length 116 [2024-11-23 18:44:46,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:46,510 INFO L225 Difference]: With dead ends: 162 [2024-11-23 18:44:46,511 INFO L226 Difference]: Without dead ends: 160 [2024-11-23 18:44:46,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1434 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1121, Invalid=3709, Unknown=0, NotChecked=0, Total=4830 [2024-11-23 18:44:46,515 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 468 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:46,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 510 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-23 18:44:46,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-23 18:44:46,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 147. [2024-11-23 18:44:46,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 98 states have (on average 1.153061224489796) internal successors, (113), 100 states have internal predecessors, (113), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-23 18:44:46,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 189 transitions. [2024-11-23 18:44:46,551 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 189 transitions. Word has length 116 [2024-11-23 18:44:46,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:46,552 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 189 transitions. [2024-11-23 18:44:46,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 2.111111111111111) internal successors, (95), 45 states have internal predecessors, (95), 10 states have call successors, (41), 5 states have call predecessors, (41), 12 states have return successors, (43), 10 states have call predecessors, (43), 10 states have call successors, (43) [2024-11-23 18:44:46,552 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 189 transitions. [2024-11-23 18:44:46,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-23 18:44:46,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:46,555 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:46,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 18:44:46,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:44:46,759 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:46,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:46,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1231369325, now seen corresponding path program 1 times [2024-11-23 18:44:46,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:46,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159554066] [2024-11-23 18:44:46,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:46,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:46,842 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 18:44:46,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:46,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159554066] [2024-11-23 18:44:46,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159554066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:46,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:46,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:44:46,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598600530] [2024-11-23 18:44:46,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:46,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:44:46,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:46,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:44:46,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:44:46,845 INFO L87 Difference]: Start difference. First operand 147 states and 189 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 18:44:46,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:46,907 INFO L93 Difference]: Finished difference Result 272 states and 344 transitions. [2024-11-23 18:44:46,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:44:46,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 118 [2024-11-23 18:44:46,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:46,917 INFO L225 Difference]: With dead ends: 272 [2024-11-23 18:44:46,917 INFO L226 Difference]: Without dead ends: 148 [2024-11-23 18:44:46,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:44:46,919 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 11 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:46,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 158 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:44:46,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-23 18:44:46,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 139. [2024-11-23 18:44:46,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 90 states have (on average 1.1222222222222222) internal successors, (101), 92 states have internal predecessors, (101), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-23 18:44:46,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 177 transitions. [2024-11-23 18:44:46,976 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 177 transitions. Word has length 118 [2024-11-23 18:44:46,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:46,978 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 177 transitions. [2024-11-23 18:44:46,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 18:44:46,978 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 177 transitions. [2024-11-23 18:44:46,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-23 18:44:46,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:46,981 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:46,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 18:44:46,981 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:46,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:46,982 INFO L85 PathProgramCache]: Analyzing trace with hash 990142997, now seen corresponding path program 1 times [2024-11-23 18:44:46,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:46,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738826739] [2024-11-23 18:44:46,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:46,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:47,084 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 18:44:47,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:47,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738826739] [2024-11-23 18:44:47,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738826739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:47,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:47,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:44:47,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578471111] [2024-11-23 18:44:47,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:47,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:44:47,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:47,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:44:47,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:44:47,088 INFO L87 Difference]: Start difference. First operand 139 states and 177 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 18:44:47,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:47,253 INFO L93 Difference]: Finished difference Result 255 states and 322 transitions. [2024-11-23 18:44:47,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:44:47,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 118 [2024-11-23 18:44:47,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:47,258 INFO L225 Difference]: With dead ends: 255 [2024-11-23 18:44:47,258 INFO L226 Difference]: Without dead ends: 139 [2024-11-23 18:44:47,259 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:44:47,260 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 86 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:47,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 65 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:44:47,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-23 18:44:47,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-23 18:44:47,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 90 states have (on average 1.1) internal successors, (99), 92 states have internal predecessors, (99), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-23 18:44:47,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 175 transitions. [2024-11-23 18:44:47,328 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 175 transitions. Word has length 118 [2024-11-23 18:44:47,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:47,331 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 175 transitions. [2024-11-23 18:44:47,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 18:44:47,332 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 175 transitions. [2024-11-23 18:44:47,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 18:44:47,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:47,335 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:47,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:44:47,336 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:47,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:47,336 INFO L85 PathProgramCache]: Analyzing trace with hash -477987345, now seen corresponding path program 1 times [2024-11-23 18:44:47,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:47,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85206447] [2024-11-23 18:44:47,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:47,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:47,448 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 18:44:47,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:47,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85206447] [2024-11-23 18:44:47,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85206447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:47,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:47,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:44:47,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158357404] [2024-11-23 18:44:47,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:47,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:44:47,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:47,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:44:47,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:44:47,451 INFO L87 Difference]: Start difference. First operand 139 states and 175 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 18:44:47,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:47,770 INFO L93 Difference]: Finished difference Result 404 states and 502 transitions. [2024-11-23 18:44:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:44:47,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 18:44:47,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:47,773 INFO L225 Difference]: With dead ends: 404 [2024-11-23 18:44:47,774 INFO L226 Difference]: Without dead ends: 288 [2024-11-23 18:44:47,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:44:47,775 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 84 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:47,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 260 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:44:47,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-23 18:44:47,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 274. [2024-11-23 18:44:47,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 180 states have (on average 1.1166666666666667) internal successors, (201), 183 states have internal predecessors, (201), 72 states have call successors, (72), 21 states have call predecessors, (72), 21 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-23 18:44:47,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 345 transitions. [2024-11-23 18:44:47,844 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 345 transitions. Word has length 119 [2024-11-23 18:44:47,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:47,844 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 345 transitions. [2024-11-23 18:44:47,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 18:44:47,845 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 345 transitions. [2024-11-23 18:44:47,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-23 18:44:47,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:47,847 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:47,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 18:44:47,847 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:47,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:47,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1641860466, now seen corresponding path program 1 times [2024-11-23 18:44:47,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:47,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041697168] [2024-11-23 18:44:47,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:47,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:47,921 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 18:44:47,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:47,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041697168] [2024-11-23 18:44:47,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041697168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:47,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:47,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:44:47,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53784649] [2024-11-23 18:44:47,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:47,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:44:47,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:47,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:44:47,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:44:47,924 INFO L87 Difference]: Start difference. First operand 274 states and 345 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 18:44:48,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:48,013 INFO L93 Difference]: Finished difference Result 525 states and 658 transitions. [2024-11-23 18:44:48,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:44:48,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 120 [2024-11-23 18:44:48,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:48,017 INFO L225 Difference]: With dead ends: 525 [2024-11-23 18:44:48,017 INFO L226 Difference]: Without dead ends: 274 [2024-11-23 18:44:48,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:44:48,019 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 21 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:48,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 147 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:44:48,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-23 18:44:48,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2024-11-23 18:44:48,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 180 states have (on average 1.1) internal successors, (198), 183 states have internal predecessors, (198), 72 states have call successors, (72), 21 states have call predecessors, (72), 21 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-23 18:44:48,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 342 transitions. [2024-11-23 18:44:48,091 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 342 transitions. Word has length 120 [2024-11-23 18:44:48,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:48,092 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 342 transitions. [2024-11-23 18:44:48,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 18:44:48,093 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 342 transitions. [2024-11-23 18:44:48,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 18:44:48,094 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:48,095 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:48,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 18:44:48,095 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:48,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:48,096 INFO L85 PathProgramCache]: Analyzing trace with hash 599365845, now seen corresponding path program 1 times [2024-11-23 18:44:48,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:48,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406554417] [2024-11-23 18:44:48,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:48,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 18:44:48,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:48,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406554417] [2024-11-23 18:44:48,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406554417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:48,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:48,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:44:48,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436618808] [2024-11-23 18:44:48,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:48,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:44:48,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:48,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:44:48,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:44:48,162 INFO L87 Difference]: Start difference. First operand 274 states and 342 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 18:44:48,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:48,281 INFO L93 Difference]: Finished difference Result 655 states and 810 transitions. [2024-11-23 18:44:48,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:44:48,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 123 [2024-11-23 18:44:48,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:48,286 INFO L225 Difference]: With dead ends: 655 [2024-11-23 18:44:48,286 INFO L226 Difference]: Without dead ends: 404 [2024-11-23 18:44:48,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:44:48,288 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 65 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 161 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 [2024-11-23 18:44:48,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 161 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:44:48,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-23 18:44:48,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 342. [2024-11-23 18:44:48,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 224 states have (on average 1.0892857142857142) internal successors, (244), 228 states have internal predecessors, (244), 90 states have call successors, (90), 27 states have call predecessors, (90), 27 states have return successors, (90), 86 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-23 18:44:48,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 424 transitions. [2024-11-23 18:44:48,370 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 424 transitions. Word has length 123 [2024-11-23 18:44:48,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:48,371 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 424 transitions. [2024-11-23 18:44:48,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 18:44:48,371 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 424 transitions. [2024-11-23 18:44:48,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 18:44:48,373 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:48,373 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:48,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 18:44:48,374 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:48,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:48,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1588499968, now seen corresponding path program 1 times [2024-11-23 18:44:48,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:48,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503598093] [2024-11-23 18:44:48,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:48,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:48,473 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 18:44:48,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:48,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503598093] [2024-11-23 18:44:48,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503598093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:48,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:48,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:44:48,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220751485] [2024-11-23 18:44:48,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:48,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:44:48,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:48,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:44:48,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:44:48,476 INFO L87 Difference]: Start difference. First operand 342 states and 424 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 18:44:48,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:48,686 INFO L93 Difference]: Finished difference Result 525 states and 648 transitions. [2024-11-23 18:44:48,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:44:48,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-11-23 18:44:48,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:48,691 INFO L225 Difference]: With dead ends: 525 [2024-11-23 18:44:48,691 INFO L226 Difference]: Without dead ends: 341 [2024-11-23 18:44:48,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:44:48,692 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 62 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:48,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 114 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:44:48,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-23 18:44:48,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-11-23 18:44:48,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 223 states have (on average 1.0807174887892377) internal successors, (241), 227 states have internal predecessors, (241), 90 states have call successors, (90), 27 states have call predecessors, (90), 27 states have return successors, (90), 86 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-23 18:44:48,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 421 transitions. [2024-11-23 18:44:48,779 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 421 transitions. Word has length 123 [2024-11-23 18:44:48,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:48,780 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 421 transitions. [2024-11-23 18:44:48,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 18:44:48,780 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 421 transitions. [2024-11-23 18:44:48,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 18:44:48,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:48,782 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:48,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 18:44:48,783 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:48,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:48,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1016670393, now seen corresponding path program 1 times [2024-11-23 18:44:48,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:48,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286533463] [2024-11-23 18:44:48,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:48,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:50,637 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 135 proven. 33 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2024-11-23 18:44:50,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:50,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286533463] [2024-11-23 18:44:50,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286533463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:44:50,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948550409] [2024-11-23 18:44:50,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:50,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:44:50,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:44:50,642 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:44:50,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 18:44:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:50,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-23 18:44:50,891 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:44:52,614 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 480 proven. 33 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-23 18:44:52,614 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:44:54,440 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 63 proven. 36 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-11-23 18:44:54,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948550409] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:44:54,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:44:54,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 20, 17] total 42 [2024-11-23 18:44:54,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969897531] [2024-11-23 18:44:54,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:44:54,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-23 18:44:54,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:54,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-23 18:44:54,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=1397, Unknown=0, NotChecked=0, Total=1722 [2024-11-23 18:44:54,449 INFO L87 Difference]: Start difference. First operand 341 states and 421 transitions. Second operand has 42 states, 42 states have (on average 2.5952380952380953) internal successors, (109), 42 states have internal predecessors, (109), 9 states have call successors, (42), 5 states have call predecessors, (42), 11 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) [2024-11-23 18:44:56,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:56,682 INFO L93 Difference]: Finished difference Result 389 states and 468 transitions. [2024-11-23 18:44:56,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 18:44:56,683 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.5952380952380953) internal successors, (109), 42 states have internal predecessors, (109), 9 states have call successors, (42), 5 states have call predecessors, (42), 11 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) Word has length 123 [2024-11-23 18:44:56,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:56,687 INFO L225 Difference]: With dead ends: 389 [2024-11-23 18:44:56,687 INFO L226 Difference]: Without dead ends: 387 [2024-11-23 18:44:56,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=679, Invalid=2513, Unknown=0, NotChecked=0, Total=3192 [2024-11-23 18:44:56,689 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 156 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:56,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 484 Invalid, 1643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1529 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 18:44:56,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-23 18:44:56,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 347. [2024-11-23 18:44:56,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 232 states have (on average 1.0732758620689655) internal successors, (249), 236 states have internal predecessors, (249), 85 states have call successors, (85), 29 states have call predecessors, (85), 29 states have return successors, (85), 81 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-23 18:44:56,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 419 transitions. [2024-11-23 18:44:56,781 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 419 transitions. Word has length 123 [2024-11-23 18:44:56,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:56,782 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 419 transitions. [2024-11-23 18:44:56,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.5952380952380953) internal successors, (109), 42 states have internal predecessors, (109), 9 states have call successors, (42), 5 states have call predecessors, (42), 11 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) [2024-11-23 18:44:56,782 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 419 transitions. [2024-11-23 18:44:56,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 18:44:56,784 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:56,784 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:56,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 18:44:56,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:44:56,985 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:56,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:56,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1244896759, now seen corresponding path program 1 times [2024-11-23 18:44:56,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:56,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606064328] [2024-11-23 18:44:56,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:56,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:57,225 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 27 proven. 24 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-23 18:44:57,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:57,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606064328] [2024-11-23 18:44:57,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606064328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:44:57,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520108701] [2024-11-23 18:44:57,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:57,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:44:57,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:44:57,230 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:44:57,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 18:44:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:57,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 18:44:57,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:44:57,769 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 323 proven. 24 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-23 18:44:57,769 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:44:58,053 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 27 proven. 24 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-23 18:44:58,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520108701] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:44:58,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:44:58,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 17 [2024-11-23 18:44:58,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923408252] [2024-11-23 18:44:58,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:44:58,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 18:44:58,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:58,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 18:44:58,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-23 18:44:58,056 INFO L87 Difference]: Start difference. First operand 347 states and 419 transitions. Second operand has 17 states, 16 states have (on average 5.5) internal successors, (88), 17 states have internal predecessors, (88), 6 states have call successors, (54), 3 states have call predecessors, (54), 6 states have return successors, (54), 6 states have call predecessors, (54), 6 states have call successors, (54) [2024-11-23 18:44:59,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:59,457 INFO L93 Difference]: Finished difference Result 1017 states and 1218 transitions. [2024-11-23 18:44:59,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 18:44:59,459 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.5) internal successors, (88), 17 states have internal predecessors, (88), 6 states have call successors, (54), 3 states have call predecessors, (54), 6 states have return successors, (54), 6 states have call predecessors, (54), 6 states have call successors, (54) Word has length 124 [2024-11-23 18:44:59,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:59,465 INFO L225 Difference]: With dead ends: 1017 [2024-11-23 18:44:59,465 INFO L226 Difference]: Without dead ends: 693 [2024-11-23 18:44:59,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=343, Invalid=989, Unknown=0, NotChecked=0, Total=1332 [2024-11-23 18:44:59,468 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 407 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:59,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 529 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 18:44:59,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-23 18:44:59,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 316. [2024-11-23 18:44:59,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 213 states have (on average 1.0704225352112675) internal successors, (228), 216 states have internal predecessors, (228), 75 states have call successors, (75), 27 states have call predecessors, (75), 27 states have return successors, (75), 72 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-23 18:44:59,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 378 transitions. [2024-11-23 18:44:59,613 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 378 transitions. Word has length 124 [2024-11-23 18:44:59,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:59,613 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 378 transitions. [2024-11-23 18:44:59,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.5) internal successors, (88), 17 states have internal predecessors, (88), 6 states have call successors, (54), 3 states have call predecessors, (54), 6 states have return successors, (54), 6 states have call predecessors, (54), 6 states have call successors, (54) [2024-11-23 18:44:59,614 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 378 transitions. [2024-11-23 18:44:59,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 18:44:59,621 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:59,621 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:59,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 18:44:59,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-23 18:44:59,822 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:59,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:59,822 INFO L85 PathProgramCache]: Analyzing trace with hash 197587415, now seen corresponding path program 1 times [2024-11-23 18:44:59,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:59,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814200626] [2024-11-23 18:44:59,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:59,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:59,903 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 18:44:59,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:59,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814200626] [2024-11-23 18:44:59,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814200626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:59,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:59,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:44:59,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068279507] [2024-11-23 18:44:59,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:59,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:44:59,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:59,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:44:59,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:44:59,906 INFO L87 Difference]: Start difference. First operand 316 states and 378 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 18:45:00,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:45:00,095 INFO L93 Difference]: Finished difference Result 686 states and 817 transitions. [2024-11-23 18:45:00,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:45:00,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-11-23 18:45:00,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:45:00,100 INFO L225 Difference]: With dead ends: 686 [2024-11-23 18:45:00,100 INFO L226 Difference]: Without dead ends: 403 [2024-11-23 18:45:00,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:45:00,102 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 57 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:45:00,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 209 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:45:00,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-23 18:45:00,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 287. [2024-11-23 18:45:00,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 197 states have (on average 1.0659898477157361) internal successors, (210), 199 states have internal predecessors, (210), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (65), 63 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:45:00,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 340 transitions. [2024-11-23 18:45:00,184 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 340 transitions. Word has length 124 [2024-11-23 18:45:00,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:45:00,185 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 340 transitions. [2024-11-23 18:45:00,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 18:45:00,185 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 340 transitions. [2024-11-23 18:45:00,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 18:45:00,187 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:45:00,187 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:45:00,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 18:45:00,188 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:45:00,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:45:00,188 INFO L85 PathProgramCache]: Analyzing trace with hash -239012709, now seen corresponding path program 1 times [2024-11-23 18:45:00,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:45:00,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338400950] [2024-11-23 18:45:00,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:45:00,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:45:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:45:01,919 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 63 proven. 33 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-11-23 18:45:01,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:45:01,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338400950] [2024-11-23 18:45:01,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338400950] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:45:01,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133187627] [2024-11-23 18:45:01,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:45:01,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:45:01,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:45:01,922 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:45:01,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 18:45:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:45:02,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-23 18:45:02,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:45:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 378 proven. 33 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-23 18:45:03,160 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:45:04,984 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 63 proven. 36 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-11-23 18:45:04,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133187627] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:45:04,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:45:04,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 18, 15] total 33 [2024-11-23 18:45:04,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971724274] [2024-11-23 18:45:04,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:45:04,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-23 18:45:04,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:45:04,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-23 18:45:04,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=788, Unknown=0, NotChecked=0, Total=1056 [2024-11-23 18:45:04,988 INFO L87 Difference]: Start difference. First operand 287 states and 340 transitions. Second operand has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 33 states have internal predecessors, (101), 4 states have call successors, (25), 4 states have call predecessors, (25), 9 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-23 18:45:06,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:45:06,960 INFO L93 Difference]: Finished difference Result 495 states and 586 transitions. [2024-11-23 18:45:06,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-23 18:45:06,961 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 33 states have internal predecessors, (101), 4 states have call successors, (25), 4 states have call predecessors, (25), 9 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 125 [2024-11-23 18:45:06,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:45:06,964 INFO L225 Difference]: With dead ends: 495 [2024-11-23 18:45:06,964 INFO L226 Difference]: Without dead ends: 333 [2024-11-23 18:45:06,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 230 SyntacticMatches, 5 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 655 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=525, Invalid=1545, Unknown=0, NotChecked=0, Total=2070 [2024-11-23 18:45:06,966 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 179 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:45:06,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 574 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 18:45:06,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-23 18:45:07,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 295. [2024-11-23 18:45:07,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 205 states have (on average 1.0634146341463415) internal successors, (218), 207 states have internal predecessors, (218), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (65), 63 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:45:07,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 348 transitions. [2024-11-23 18:45:07,049 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 348 transitions. Word has length 125 [2024-11-23 18:45:07,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:45:07,049 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 348 transitions. [2024-11-23 18:45:07,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 33 states have internal predecessors, (101), 4 states have call successors, (25), 4 states have call predecessors, (25), 9 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-23 18:45:07,050 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 348 transitions. [2024-11-23 18:45:07,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 18:45:07,052 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:45:07,052 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:45:07,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 18:45:07,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:45:07,256 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:45:07,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:45:07,257 INFO L85 PathProgramCache]: Analyzing trace with hash 605084724, now seen corresponding path program 1 times [2024-11-23 18:45:07,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:45:07,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786892414] [2024-11-23 18:45:07,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:45:07,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:45:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:45:07,323 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:45:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:45:07,456 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 18:45:07,457 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:45:07,458 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 18:45:07,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 18:45:07,465 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:45:07,592 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 18:45:07,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:45:07 BoogieIcfgContainer [2024-11-23 18:45:07,596 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 18:45:07,597 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 18:45:07,597 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 18:45:07,598 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 18:45:07,599 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:44:24" (3/4) ... [2024-11-23 18:45:07,602 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 18:45:07,603 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 18:45:07,604 INFO L158 Benchmark]: Toolchain (without parser) took 43866.31ms. Allocated memory was 109.1MB in the beginning and 478.2MB in the end (delta: 369.1MB). Free memory was 84.3MB in the beginning and 276.4MB in the end (delta: -192.0MB). Peak memory consumption was 176.7MB. Max. memory is 16.1GB. [2024-11-23 18:45:07,604 INFO L158 Benchmark]: CDTParser took 1.80ms. Allocated memory is still 83.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:45:07,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.28ms. Allocated memory is still 109.1MB. Free memory was 84.1MB in the beginning and 71.4MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:45:07,605 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.75ms. Allocated memory is still 109.1MB. Free memory was 71.4MB in the beginning and 69.4MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:45:07,605 INFO L158 Benchmark]: Boogie Preprocessor took 92.73ms. Allocated memory is still 109.1MB. Free memory was 69.4MB in the beginning and 67.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:45:07,606 INFO L158 Benchmark]: RCFGBuilder took 634.48ms. Allocated memory is still 109.1MB. Free memory was 67.4MB in the beginning and 50.9MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 18:45:07,606 INFO L158 Benchmark]: TraceAbstraction took 42638.03ms. Allocated memory was 109.1MB in the beginning and 478.2MB in the end (delta: 369.1MB). Free memory was 50.3MB in the beginning and 276.4MB in the end (delta: -226.1MB). Peak memory consumption was 143.1MB. Max. memory is 16.1GB. [2024-11-23 18:45:07,607 INFO L158 Benchmark]: Witness Printer took 5.73ms. Allocated memory is still 478.2MB. Free memory was 276.4MB in the beginning and 276.4MB in the end (delta: 54.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:45:07,609 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.80ms. Allocated memory is still 83.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.28ms. Allocated memory is still 109.1MB. Free memory was 84.1MB in the beginning and 71.4MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.75ms. Allocated memory is still 109.1MB. Free memory was 71.4MB in the beginning and 69.4MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.73ms. Allocated memory is still 109.1MB. Free memory was 69.4MB in the beginning and 67.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 634.48ms. Allocated memory is still 109.1MB. Free memory was 67.4MB in the beginning and 50.9MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 42638.03ms. Allocated memory was 109.1MB in the beginning and 478.2MB in the end (delta: 369.1MB). Free memory was 50.3MB in the beginning and 276.4MB in the end (delta: -226.1MB). Peak memory consumption was 143.1MB. Max. memory is 16.1GB. * Witness Printer took 5.73ms. Allocated memory is still 478.2MB. Free memory was 276.4MB in the beginning and 276.4MB in the end (delta: 54.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 101, overapproximation of someBinaryFLOATComparisonOperation at line 43, overapproximation of bitwiseOr at line 51, overapproximation of bitwiseOr at line 101. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 16; [L23] signed short int var_1_7 = 32; [L24] signed short int var_1_8 = 20113; [L25] signed short int var_1_9 = 100; [L26] signed char var_1_10 = 100; [L27] signed char var_1_11 = -1; [L28] signed char var_1_12 = 16; [L29] unsigned char var_1_13 = 1; [L30] unsigned char var_1_15 = 0; [L31] unsigned char var_1_16 = 1; [L32] unsigned short int var_1_18 = 10; [L33] unsigned short int var_1_19 = 256; [L34] signed long int var_1_20 = 32; [L35] signed long int var_1_21 = 127; [L36] signed short int var_1_22 = 128; VAL [isInitial=0, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=32, var_1_8=20113, var_1_9=100] [L105] isInitial = 1 [L106] FCALL initially() [L108] FCALL updateLastVariables() [L109] CALL updateVariables() [L70] var_1_7 = __VERIFIER_nondet_short() [L71] CALL assume_abort_if_not(var_1_7 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=20113, var_1_9=100] [L71] RET assume_abort_if_not(var_1_7 >= -1) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=20113, var_1_9=100] [L72] CALL assume_abort_if_not(var_1_7 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=20113, var_1_9=100] [L72] RET assume_abort_if_not(var_1_7 <= 32766) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=20113, var_1_9=100] [L73] var_1_8 = __VERIFIER_nondet_short() [L74] CALL assume_abort_if_not(var_1_8 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=100] [L74] RET assume_abort_if_not(var_1_8 >= 16383) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=100] [L75] CALL assume_abort_if_not(var_1_8 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=100] [L75] RET assume_abort_if_not(var_1_8 <= 32766) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=100] [L76] var_1_9 = __VERIFIER_nondet_short() [L77] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L77] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L78] CALL assume_abort_if_not(var_1_9 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L78] RET assume_abort_if_not(var_1_9 <= 16383) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L79] var_1_11 = __VERIFIER_nondet_char() [L80] CALL assume_abort_if_not(var_1_11 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L80] RET assume_abort_if_not(var_1_11 >= -63) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L81] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L81] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L82] var_1_12 = __VERIFIER_nondet_char() [L83] CALL assume_abort_if_not(var_1_12 >= -31) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L83] RET assume_abort_if_not(var_1_12 >= -31) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L84] CALL assume_abort_if_not(var_1_12 <= 32) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L84] RET assume_abort_if_not(var_1_12 <= 32) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L85] var_1_15 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L86] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L87] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L87] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L88] var_1_16 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_16 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L89] RET assume_abort_if_not(var_1_16 >= 1) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L90] CALL assume_abort_if_not(var_1_16 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L90] RET assume_abort_if_not(var_1_16 <= 1) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L91] var_1_19 = __VERIFIER_nondet_ushort() [L92] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L92] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L93] CALL assume_abort_if_not(var_1_19 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L93] RET assume_abort_if_not(var_1_19 <= 65534) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L94] var_1_21 = __VERIFIER_nondet_long() [L95] CALL assume_abort_if_not(var_1_21 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=0, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=0, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L95] RET assume_abort_if_not(var_1_21 >= -2147483648) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=0, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L96] CALL assume_abort_if_not(var_1_21 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=0, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=0, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L96] RET assume_abort_if_not(var_1_21 <= 2147483647) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=0, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L109] RET updateVariables() [L110] CALL step() [L40] var_1_18 = var_1_19 [L41] var_1_20 = var_1_21 [L42] var_1_22 = var_1_12 VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=16, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L43] COND FALSE !(127.5f > var_1_20) [L46] var_1_13 = ((var_1_20 >= var_1_20) || var_1_15) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=16, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L48] COND FALSE !(var_1_18 == var_1_7) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=16, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L51] EXPR (32 * -25) | var_1_22 VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=16, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L51] COND FALSE !(((32 * -25) | var_1_22) >= var_1_11) [L57] COND TRUE \read(var_1_13) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=16, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L58] COND TRUE var_1_10 > var_1_22 VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=16, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L59] COND TRUE \read(var_1_13) [L60] var_1_1 = (var_1_7 - (var_1_8 - var_1_9)) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=-32767, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L110] RET step() [L111] CALL, EXPR property() [L101] EXPR (var_1_13 ? ((var_1_10 > var_1_22) ? (var_1_13 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) var_1_18))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1)) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=-32767, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L101] EXPR (var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=-32767, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L101] EXPR (32 * -25) | var_1_22 VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=-32767, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L101] EXPR (var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=-32767, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L101] EXPR (var_1_13 ? ((var_1_10 > var_1_22) ? (var_1_13 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) var_1_18))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1)) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=-32767, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L101-L102] return (((((var_1_13 ? ((var_1_10 > var_1_22) ? (var_1_13 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) var_1_18))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1))) && ((127.5f > var_1_20) ? (var_1_13 == ((unsigned char) (var_1_15 && var_1_16))) : (var_1_13 == ((unsigned char) ((var_1_20 >= var_1_20) || var_1_15))))) && (var_1_18 == ((unsigned short int) var_1_19))) && (var_1_20 == ((signed long int) var_1_21))) && (var_1_22 == ((signed short int) var_1_12)) ; [L111] RET, EXPR property() [L111] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=-32767, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L19] reach_error() VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=-32767, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 42.4s, OverallIterations: 16, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2025 SdHoareTripleChecker+Valid, 7.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1923 mSDsluCounter, 4149 SdHoareTripleChecker+Invalid, 6.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2702 mSDsCounter, 810 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6084 IncrementalHoareTripleChecker+Invalid, 6894 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 810 mSolverCounterUnsat, 1447 mSDtfsCounter, 6084 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1523 GetRequests, 1263 SyntacticMatches, 9 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3263 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=347occurred in iteration=12, InterpolantAutomatonStates: 188, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 15 MinimizatonAttempts, 801 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 25.0s InterpolantComputationTime, 2630 NumberOfCodeBlocks, 2630 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3082 ConstructedInterpolants, 0 QuantifiedInterpolants, 13211 SizeOfPredicates, 50 NumberOfNonLiveVariables, 1646 ConjunctsInSsa, 139 ConjunctsInUnsatCore, 26 InterpolantComputations, 10 PerfectInterpolantSequences, 15353/15912 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-23 18:45:07,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC --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 97ff03298340a9336a03e9d19ed0d00b1afc963b5be61528526d9d1b67b2a323 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:45:10,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:45:10,989 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 18:45:11,003 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:45:11,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:45:11,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:45:11,064 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:45:11,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:45:11,065 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:45:11,065 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:45:11,066 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:45:11,066 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:45:11,067 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:45:11,067 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:45:11,068 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:45:11,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:45:11,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:45:11,069 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:45:11,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:45:11,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:45:11,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:45:11,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:45:11,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:45:11,070 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 18:45:11,070 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 18:45:11,070 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 18:45:11,070 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:45:11,070 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:45:11,070 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:45:11,071 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:45:11,071 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:45:11,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:45:11,072 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:45:11,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:45:11,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:45:11,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:45:11,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:45:11,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:45:11,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:45:11,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:45:11,073 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:45:11,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:45:11,073 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:45:11,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:45:11,073 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 18:45:11,073 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 18:45:11,073 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:45:11,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:45:11,074 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:45:11,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:45:11,074 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC 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 -> 97ff03298340a9336a03e9d19ed0d00b1afc963b5be61528526d9d1b67b2a323 [2024-11-23 18:45:11,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:45:11,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:45:11,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:45:11,485 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:45:11,485 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:45:11,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i [2024-11-23 18:45:15,189 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/data/0115808a9/b30a6d7aef0942a0980cca2186620efb/FLAG832268871 [2024-11-23 18:45:15,586 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:45:15,587 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i [2024-11-23 18:45:15,599 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/data/0115808a9/b30a6d7aef0942a0980cca2186620efb/FLAG832268871 [2024-11-23 18:45:15,622 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/data/0115808a9/b30a6d7aef0942a0980cca2186620efb [2024-11-23 18:45:15,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:45:15,627 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:45:15,630 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:45:15,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:45:15,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:45:15,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:45:15" (1/1) ... [2024-11-23 18:45:15,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb564ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:45:15, skipping insertion in model container [2024-11-23 18:45:15,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:45:15" (1/1) ... [2024-11-23 18:45:15,662 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:45:15,896 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_84422707-1ff6-43b2-a441-f520c1dc7743/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i[916,929] [2024-11-23 18:45:15,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:45:16,021 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:45:16,038 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_84422707-1ff6-43b2-a441-f520c1dc7743/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i[916,929] [2024-11-23 18:45:16,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:45:16,123 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:45:16,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:45:16 WrapperNode [2024-11-23 18:45:16,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:45:16,127 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:45:16,127 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:45:16,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:45:16,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:45:16" (1/1) ... [2024-11-23 18:45:16,155 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:45:16" (1/1) ... [2024-11-23 18:45:16,194 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2024-11-23 18:45:16,197 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:45:16,198 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:45:16,199 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:45:16,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:45:16,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:45:16" (1/1) ... [2024-11-23 18:45:16,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:45:16" (1/1) ... [2024-11-23 18:45:16,219 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:45:16" (1/1) ... [2024-11-23 18:45:16,237 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]. [2024-11-23 18:45:16,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:45:16" (1/1) ... [2024-11-23 18:45:16,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:45:16" (1/1) ... [2024-11-23 18:45:16,252 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:45:16" (1/1) ... [2024-11-23 18:45:16,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:45:16" (1/1) ... [2024-11-23 18:45:16,257 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:45:16" (1/1) ... [2024-11-23 18:45:16,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:45:16" (1/1) ... [2024-11-23 18:45:16,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:45:16" (1/1) ... [2024-11-23 18:45:16,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:45:16,275 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:45:16,280 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:45:16,280 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:45:16,281 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:45:16" (1/1) ... [2024-11-23 18:45:16,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:45:16,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:45:16,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:45:16,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:45:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:45:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 18:45:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:45:16,381 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:45:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:45:16,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:45:16,511 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:45:16,513 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:45:17,279 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-23 18:45:17,280 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:45:17,294 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:45:17,294 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 18:45:17,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:45:17 BoogieIcfgContainer [2024-11-23 18:45:17,295 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:45:17,299 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:45:17,299 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:45:17,307 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:45:17,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:45:15" (1/3) ... [2024-11-23 18:45:17,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7578a5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:45:17, skipping insertion in model container [2024-11-23 18:45:17,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:45:16" (2/3) ... [2024-11-23 18:45:17,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7578a5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:45:17, skipping insertion in model container [2024-11-23 18:45:17,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:45:17" (3/3) ... [2024-11-23 18:45:17,311 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-97.i [2024-11-23 18:45:17,331 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:45:17,335 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-97.i that has 2 procedures, 53 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 18:45:17,437 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:45:17,458 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;@aaf8c26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:45:17,460 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:45:17,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 18:45:17,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 18:45:17,501 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:45:17,503 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:45:17,504 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:45:17,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:45:17,513 INFO L85 PathProgramCache]: Analyzing trace with hash 73183195, now seen corresponding path program 1 times [2024-11-23 18:45:17,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:45:17,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686773355] [2024-11-23 18:45:17,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:45:17,531 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 [2024-11-23 18:45:17,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:45:17,535 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 18:45:17,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 18:45:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:45:17,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:45:17,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:45:17,893 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-23 18:45:17,893 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:45:17,894 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:45:17,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686773355] [2024-11-23 18:45:17,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686773355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:45:17,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:45:17,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:45:17,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742490985] [2024-11-23 18:45:17,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:45:17,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:45:17,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:45:17,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:45:17,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:45:17,931 INFO L87 Difference]: Start difference. First operand has 53 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 18:45:17,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:45:17,964 INFO L93 Difference]: Finished difference Result 99 states and 172 transitions. [2024-11-23 18:45:17,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:45:17,966 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 111 [2024-11-23 18:45:17,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:45:17,972 INFO L225 Difference]: With dead ends: 99 [2024-11-23 18:45:17,973 INFO L226 Difference]: Without dead ends: 49 [2024-11-23 18:45:17,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:45:17,980 INFO L435 NwaCegarLoop]: 73 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, 73 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 [2024-11-23 18:45:17,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:45:17,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-23 18:45:18,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-23 18:45:18,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 18:45:18,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 73 transitions. [2024-11-23 18:45:18,037 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 73 transitions. Word has length 111 [2024-11-23 18:45:18,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:45:18,039 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 73 transitions. [2024-11-23 18:45:18,040 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 18:45:18,040 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 73 transitions. [2024-11-23 18:45:18,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 18:45:18,045 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:45:18,046 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:45:18,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/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)] Ended with exit code 0 [2024-11-23 18:45:18,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 18:45:18,247 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:45:18,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:45:18,248 INFO L85 PathProgramCache]: Analyzing trace with hash 753856795, now seen corresponding path program 1 times [2024-11-23 18:45:18,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:45:18,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389830905] [2024-11-23 18:45:18,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:45:18,249 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 [2024-11-23 18:45:18,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:45:18,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 18:45:18,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 18:45:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:45:18,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 18:45:18,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:45:18,642 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 18:45:18,643 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:45:18,643 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:45:18,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389830905] [2024-11-23 18:45:18,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389830905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:45:18,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:45:18,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:45:18,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602670] [2024-11-23 18:45:18,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:45:18,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:45:18,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:45:18,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:45:18,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:45:18,651 INFO L87 Difference]: Start difference. First operand 49 states and 73 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 18:45:19,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:45:19,134 INFO L93 Difference]: Finished difference Result 141 states and 213 transitions. [2024-11-23 18:45:19,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:45:19,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 111 [2024-11-23 18:45:19,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:45:19,138 INFO L225 Difference]: With dead ends: 141 [2024-11-23 18:45:19,138 INFO L226 Difference]: Without dead ends: 95 [2024-11-23 18:45:19,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:45:19,140 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 66 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:45:19,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 136 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 18:45:19,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-23 18:45:19,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 55. [2024-11-23 18:45:19,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 35 states have internal predecessors, (46), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 18:45:19,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 82 transitions. [2024-11-23 18:45:19,161 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 82 transitions. Word has length 111 [2024-11-23 18:45:19,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:45:19,163 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 82 transitions. [2024-11-23 18:45:19,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 18:45:19,163 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 82 transitions. [2024-11-23 18:45:19,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 18:45:19,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:45:19,183 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:45:19,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-23 18:45:19,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 18:45:19,384 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:45:19,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:45:19,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1021150567, now seen corresponding path program 1 times [2024-11-23 18:45:19,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:45:19,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943070841] [2024-11-23 18:45:19,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:45:19,386 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 [2024-11-23 18:45:19,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:45:19,388 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 18:45:19,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 18:45:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:45:19,594 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 18:45:19,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:45:20,210 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 348 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 18:45:20,213 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:45:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 63 proven. 36 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-11-23 18:45:20,891 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:45:20,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943070841] [2024-11-23 18:45:20,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1943070841] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:45:20,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 18:45:20,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2024-11-23 18:45:20,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126403229] [2024-11-23 18:45:20,892 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 18:45:20,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 18:45:20,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:45:20,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 18:45:20,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-23 18:45:20,894 INFO L87 Difference]: Start difference. First operand 55 states and 82 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 3 states have call successors, (25), 3 states have call predecessors, (25), 7 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-23 18:45:22,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:45:22,511 INFO L93 Difference]: Finished difference Result 139 states and 203 transitions. [2024-11-23 18:45:22,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 18:45:22,512 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 3 states have call successors, (25), 3 states have call predecessors, (25), 7 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 111 [2024-11-23 18:45:22,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:45:22,514 INFO L225 Difference]: With dead ends: 139 [2024-11-23 18:45:22,514 INFO L226 Difference]: Without dead ends: 87 [2024-11-23 18:45:22,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=205, Invalid=445, Unknown=0, NotChecked=0, Total=650 [2024-11-23 18:45:22,516 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 111 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:45:22,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 129 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 18:45:22,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-23 18:45:22,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 73. [2024-11-23 18:45:22,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 42 states have internal predecessors, (46), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-23 18:45:22,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2024-11-23 18:45:22,561 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 111 [2024-11-23 18:45:22,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:45:22,565 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2024-11-23 18:45:22,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 3 states have call successors, (25), 3 states have call predecessors, (25), 7 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-23 18:45:22,565 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2024-11-23 18:45:22,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-23 18:45:22,567 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:45:22,567 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:45:22,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 18:45:22,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 18:45:22,768 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:45:22,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:45:22,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1489236011, now seen corresponding path program 1 times [2024-11-23 18:45:22,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:45:22,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679093654] [2024-11-23 18:45:22,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:45:22,770 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 [2024-11-23 18:45:22,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:45:22,774 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 18:45:22,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84422707-1ff6-43b2-a441-f520c1dc7743/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 18:45:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:45:22,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-23 18:45:22,951 INFO L279 TraceCheckSpWp]: Computing forward predicates...