./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd739e073fd22ceb2879e867de327b334b7eea402e53d4a8f9e32eed7e4110d8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:33:49,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:33:49,571 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-28 20:33:49,575 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:33:49,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:33:49,597 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:33:49,598 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:33:49,598 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:33:49,599 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:33:49,599 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:33:49,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:33:49,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:33:49,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:33:49,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:33:49,602 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:33:49,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:33:49,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:33:49,604 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:33:49,604 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:33:49,605 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:33:49,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:33:49,608 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:33:49,608 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:33:49,609 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:33:49,609 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-28 20:33:49,610 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:33:49,610 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:33:49,611 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:33:49,611 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:33:49,612 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:33:49,612 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:33:49,612 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:33:49,613 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:33:49,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:33:49,613 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:33:49,613 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:33:49,614 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:33:49,614 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:33:49,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:33:49,614 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:33:49,614 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:33:49,615 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:33:49,615 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:33:49,615 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:33:49,615 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd739e073fd22ceb2879e867de327b334b7eea402e53d4a8f9e32eed7e4110d8 [2023-11-28 20:33:49,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:33:49,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:33:49,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:33:49,891 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:33:49,892 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:33:49,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2023-11-28 20:33:52,664 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:33:52,845 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:33:52,846 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2023-11-28 20:33:52,873 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/data/9e8be8ed6/c4a3753410e344af8d7d395673f99d01/FLAGc4295d120 [2023-11-28 20:33:52,888 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/data/9e8be8ed6/c4a3753410e344af8d7d395673f99d01 [2023-11-28 20:33:52,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:33:52,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:33:52,898 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:33:52,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:33:52,912 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:33:52,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:33:52" (1/1) ... [2023-11-28 20:33:52,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d3e4d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:52, skipping insertion in model container [2023-11-28 20:33:52,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:33:52" (1/1) ... [2023-11-28 20:33:52,942 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:33:53,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:33:53,118 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:33:53,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:33:53,170 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:33:53,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:53 WrapperNode [2023-11-28 20:33:53,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:33:53,172 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:33:53,172 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:33:53,172 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:33:53,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:53" (1/1) ... [2023-11-28 20:33:53,185 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:53" (1/1) ... [2023-11-28 20:33:53,214 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 168 [2023-11-28 20:33:53,215 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:33:53,215 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:33:53,216 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:33:53,216 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:33:53,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:53" (1/1) ... [2023-11-28 20:33:53,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:53" (1/1) ... [2023-11-28 20:33:53,227 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:53" (1/1) ... [2023-11-28 20:33:53,241 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-28 20:33:53,241 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:53" (1/1) ... [2023-11-28 20:33:53,241 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:53" (1/1) ... [2023-11-28 20:33:53,247 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:53" (1/1) ... [2023-11-28 20:33:53,252 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:53" (1/1) ... [2023-11-28 20:33:53,254 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:53" (1/1) ... [2023-11-28 20:33:53,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:53" (1/1) ... [2023-11-28 20:33:53,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:33:53,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:33:53,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:33:53,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:33:53,261 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:53" (1/1) ... [2023-11-28 20:33:53,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:33:53,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:33:53,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:33:53,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:33:53,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:33:53,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:33:53,333 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-11-28 20:33:53,333 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-11-28 20:33:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:33:53,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:33:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-28 20:33:53,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-28 20:33:53,414 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:33:53,416 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:33:53,776 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:33:53,800 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:33:53,801 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-28 20:33:53,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:33:53 BoogieIcfgContainer [2023-11-28 20:33:53,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:33:53,804 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:33:53,804 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:33:53,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:33:53,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:33:52" (1/3) ... [2023-11-28 20:33:53,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b05c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:33:53, skipping insertion in model container [2023-11-28 20:33:53,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:53" (2/3) ... [2023-11-28 20:33:53,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b05c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:33:53, skipping insertion in model container [2023-11-28 20:33:53,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:33:53" (3/3) ... [2023-11-28 20:33:53,810 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_5.c.cil.c [2023-11-28 20:33:53,824 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:33:53,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-28 20:33:53,865 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:33:53,872 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@56963cee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:33:53,872 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-28 20:33:53,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 78 states have (on average 1.7564102564102564) internal successors, (137), 103 states have internal predecessors, (137), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-28 20:33:53,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-28 20:33:53,881 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:53,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:53,882 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:53,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:53,886 INFO L85 PathProgramCache]: Analyzing trace with hash -857855486, now seen corresponding path program 1 times [2023-11-28 20:33:53,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:53,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188880457] [2023-11-28 20:33:53,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:53,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:54,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:33:54,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:54,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188880457] [2023-11-28 20:33:54,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188880457] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:54,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:33:54,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:33:54,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017089574] [2023-11-28 20:33:54,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:54,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:33:54,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:54,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:33:54,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:33:54,125 INFO L87 Difference]: Start difference. First operand has 110 states, 78 states have (on average 1.7564102564102564) internal successors, (137), 103 states have internal predecessors, (137), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:33:54,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:54,276 INFO L93 Difference]: Finished difference Result 269 states and 382 transitions. [2023-11-28 20:33:54,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:33:54,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-28 20:33:54,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:54,289 INFO L225 Difference]: With dead ends: 269 [2023-11-28 20:33:54,289 INFO L226 Difference]: Without dead ends: 146 [2023-11-28 20:33:54,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:33:54,297 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 84 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:54,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 346 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:33:54,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-28 20:33:54,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 134. [2023-11-28 20:33:54,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 108 states have (on average 1.5462962962962963) internal successors, (167), 127 states have internal predecessors, (167), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:54,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 175 transitions. [2023-11-28 20:33:54,344 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 175 transitions. Word has length 8 [2023-11-28 20:33:54,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:54,345 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 175 transitions. [2023-11-28 20:33:54,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:33:54,346 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 175 transitions. [2023-11-28 20:33:54,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-28 20:33:54,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:54,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:54,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:33:54,348 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:54,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:54,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1075229470, now seen corresponding path program 1 times [2023-11-28 20:33:54,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:54,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675450350] [2023-11-28 20:33:54,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:54,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:54,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:33:54,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:54,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675450350] [2023-11-28 20:33:54,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675450350] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:54,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:33:54,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:33:54,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071910701] [2023-11-28 20:33:54,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:54,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:33:54,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:54,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:33:54,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:33:54,443 INFO L87 Difference]: Start difference. First operand 134 states and 175 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:33:54,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:54,501 INFO L93 Difference]: Finished difference Result 278 states and 370 transitions. [2023-11-28 20:33:54,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:33:54,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-28 20:33:54,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:54,504 INFO L225 Difference]: With dead ends: 278 [2023-11-28 20:33:54,504 INFO L226 Difference]: Without dead ends: 146 [2023-11-28 20:33:54,506 INFO L412 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 [2023-11-28 20:33:54,507 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 12 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:54,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 195 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:33:54,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-28 20:33:54,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 138. [2023-11-28 20:33:54,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 112 states have (on average 1.5267857142857142) internal successors, (171), 131 states have internal predecessors, (171), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:54,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 179 transitions. [2023-11-28 20:33:54,525 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 179 transitions. Word has length 13 [2023-11-28 20:33:54,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:54,526 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 179 transitions. [2023-11-28 20:33:54,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:33:54,526 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 179 transitions. [2023-11-28 20:33:54,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-28 20:33:54,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:54,528 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:54,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:33:54,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:54,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:54,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1075118156, now seen corresponding path program 1 times [2023-11-28 20:33:54,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:54,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148196178] [2023-11-28 20:33:54,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:54,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:54,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-28 20:33:54,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:54,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148196178] [2023-11-28 20:33:54,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148196178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:54,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:33:54,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:33:54,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672066246] [2023-11-28 20:33:54,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:54,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:33:54,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:54,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:33:54,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:33:54,576 INFO L87 Difference]: Start difference. First operand 138 states and 179 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:33:54,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:54,619 INFO L93 Difference]: Finished difference Result 142 states and 185 transitions. [2023-11-28 20:33:54,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:33:54,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-28 20:33:54,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:54,621 INFO L225 Difference]: With dead ends: 142 [2023-11-28 20:33:54,622 INFO L226 Difference]: Without dead ends: 141 [2023-11-28 20:33:54,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:33:54,624 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 3 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:54,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 195 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:33:54,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-28 20:33:54,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 137. [2023-11-28 20:33:54,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 112 states have (on average 1.5089285714285714) internal successors, (169), 130 states have internal predecessors, (169), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:54,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 177 transitions. [2023-11-28 20:33:54,638 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 177 transitions. Word has length 13 [2023-11-28 20:33:54,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:54,638 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 177 transitions. [2023-11-28 20:33:54,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:33:54,639 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 177 transitions. [2023-11-28 20:33:54,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-28 20:33:54,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:54,640 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:54,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 20:33:54,641 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:54,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:54,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1648619888, now seen corresponding path program 1 times [2023-11-28 20:33:54,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:54,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866755375] [2023-11-28 20:33:54,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:54,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:54,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:33:54,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:54,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866755375] [2023-11-28 20:33:54,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866755375] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:33:54,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562827607] [2023-11-28 20:33:54,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:54,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:33:54,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:33:54,724 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:33:54,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 20:33:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:54,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:33:54,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:33:54,864 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:33:54,864 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:33:54,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562827607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:54,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:33:54,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-28 20:33:54,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005444396] [2023-11-28 20:33:54,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:54,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:33:54,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:54,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:33:54,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:33:54,867 INFO L87 Difference]: Start difference. First operand 137 states and 177 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:33:54,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:54,941 INFO L93 Difference]: Finished difference Result 170 states and 226 transitions. [2023-11-28 20:33:54,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:33:54,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-28 20:33:54,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:54,944 INFO L225 Difference]: With dead ends: 170 [2023-11-28 20:33:54,944 INFO L226 Difference]: Without dead ends: 168 [2023-11-28 20:33:54,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:33:54,945 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 53 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:54,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 200 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:33:54,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-11-28 20:33:54,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 143. [2023-11-28 20:33:54,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 118 states have (on average 1.4830508474576272) internal successors, (175), 136 states have internal predecessors, (175), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:54,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 183 transitions. [2023-11-28 20:33:54,958 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 183 transitions. Word has length 14 [2023-11-28 20:33:54,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:54,958 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 183 transitions. [2023-11-28 20:33:54,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:33:54,959 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 183 transitions. [2023-11-28 20:33:54,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-28 20:33:54,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:54,960 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:54,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 20:33:55,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:33:55,166 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:55,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:55,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1031075475, now seen corresponding path program 1 times [2023-11-28 20:33:55,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:55,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482872828] [2023-11-28 20:33:55,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:55,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:55,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:33:55,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:55,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482872828] [2023-11-28 20:33:55,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482872828] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:33:55,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874554867] [2023-11-28 20:33:55,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:55,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:33:55,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:33:55,228 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:33:55,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 20:33:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:55,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:33:55,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:33:55,296 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:33:55,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:33:55,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874554867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:55,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:33:55,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-28 20:33:55,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545867191] [2023-11-28 20:33:55,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:55,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:33:55,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:55,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:33:55,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:33:55,299 INFO L87 Difference]: Start difference. First operand 143 states and 183 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:33:55,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:55,349 INFO L93 Difference]: Finished difference Result 154 states and 197 transitions. [2023-11-28 20:33:55,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:33:55,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-28 20:33:55,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:55,351 INFO L225 Difference]: With dead ends: 154 [2023-11-28 20:33:55,351 INFO L226 Difference]: Without dead ends: 153 [2023-11-28 20:33:55,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:33:55,353 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 28 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:55,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 185 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:33:55,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-28 20:33:55,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 145. [2023-11-28 20:33:55,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 120 states have (on average 1.475) internal successors, (177), 138 states have internal predecessors, (177), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:55,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 185 transitions. [2023-11-28 20:33:55,362 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 185 transitions. Word has length 14 [2023-11-28 20:33:55,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:55,363 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 185 transitions. [2023-11-28 20:33:55,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:33:55,363 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 185 transitions. [2023-11-28 20:33:55,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-28 20:33:55,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:55,364 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:55,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-28 20:33:55,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:33:55,570 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:55,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:55,570 INFO L85 PathProgramCache]: Analyzing trace with hash -432390931, now seen corresponding path program 1 times [2023-11-28 20:33:55,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:55,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635357735] [2023-11-28 20:33:55,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:55,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:55,597 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-28 20:33:55,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:55,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635357735] [2023-11-28 20:33:55,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635357735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:55,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:33:55,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:33:55,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931455725] [2023-11-28 20:33:55,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:55,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:33:55,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:55,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:33:55,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:33:55,599 INFO L87 Difference]: Start difference. First operand 145 states and 185 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:33:55,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:55,643 INFO L93 Difference]: Finished difference Result 149 states and 191 transitions. [2023-11-28 20:33:55,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:33:55,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-28 20:33:55,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:55,645 INFO L225 Difference]: With dead ends: 149 [2023-11-28 20:33:55,645 INFO L226 Difference]: Without dead ends: 148 [2023-11-28 20:33:55,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:33:55,647 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 7 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:55,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 189 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:33:55,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-28 20:33:55,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 142. [2023-11-28 20:33:55,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 118 states have (on average 1.4661016949152543) internal successors, (173), 135 states have internal predecessors, (173), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:55,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 181 transitions. [2023-11-28 20:33:55,656 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 181 transitions. Word has length 15 [2023-11-28 20:33:55,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:55,656 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 181 transitions. [2023-11-28 20:33:55,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:33:55,656 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 181 transitions. [2023-11-28 20:33:55,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-28 20:33:55,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:55,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:55,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-28 20:33:55,658 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:55,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:55,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1199937252, now seen corresponding path program 1 times [2023-11-28 20:33:55,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:55,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365758333] [2023-11-28 20:33:55,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:55,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:55,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:33:55,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:55,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365758333] [2023-11-28 20:33:55,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365758333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:55,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:33:55,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:33:55,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251326734] [2023-11-28 20:33:55,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:55,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:33:55,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:55,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:33:55,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:33:55,687 INFO L87 Difference]: Start difference. First operand 142 states and 181 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:33:55,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:55,748 INFO L93 Difference]: Finished difference Result 290 states and 375 transitions. [2023-11-28 20:33:55,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:33:55,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-28 20:33:55,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:55,750 INFO L225 Difference]: With dead ends: 290 [2023-11-28 20:33:55,750 INFO L226 Difference]: Without dead ends: 150 [2023-11-28 20:33:55,751 INFO L412 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 [2023-11-28 20:33:55,752 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 8 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:55,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 185 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:33:55,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-28 20:33:55,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 144. [2023-11-28 20:33:55,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 120 states have (on average 1.4416666666666667) internal successors, (173), 137 states have internal predecessors, (173), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:55,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 181 transitions. [2023-11-28 20:33:55,762 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 181 transitions. Word has length 15 [2023-11-28 20:33:55,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:55,762 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 181 transitions. [2023-11-28 20:33:55,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:33:55,762 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 181 transitions. [2023-11-28 20:33:55,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-28 20:33:55,763 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:55,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:55,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-28 20:33:55,764 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:55,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:55,764 INFO L85 PathProgramCache]: Analyzing trace with hash 575070110, now seen corresponding path program 1 times [2023-11-28 20:33:55,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:55,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567476442] [2023-11-28 20:33:55,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:55,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:55,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:33:55,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:55,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567476442] [2023-11-28 20:33:55,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567476442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:55,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:33:55,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:33:55,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008545050] [2023-11-28 20:33:55,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:55,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:33:55,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:55,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:33:55,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:33:55,821 INFO L87 Difference]: Start difference. First operand 144 states and 181 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:33:55,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:55,878 INFO L93 Difference]: Finished difference Result 290 states and 364 transitions. [2023-11-28 20:33:55,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:33:55,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-28 20:33:55,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:55,880 INFO L225 Difference]: With dead ends: 290 [2023-11-28 20:33:55,880 INFO L226 Difference]: Without dead ends: 148 [2023-11-28 20:33:55,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:33:55,881 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 5 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:55,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 291 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:33:55,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-28 20:33:55,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2023-11-28 20:33:55,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.4308943089430894) internal successors, (176), 140 states have internal predecessors, (176), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:55,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 184 transitions. [2023-11-28 20:33:55,890 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 184 transitions. Word has length 15 [2023-11-28 20:33:55,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:55,890 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 184 transitions. [2023-11-28 20:33:55,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:33:55,891 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 184 transitions. [2023-11-28 20:33:55,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-28 20:33:55,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:55,892 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:55,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-28 20:33:55,892 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:55,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:55,892 INFO L85 PathProgramCache]: Analyzing trace with hash 25672567, now seen corresponding path program 1 times [2023-11-28 20:33:55,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:55,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974986444] [2023-11-28 20:33:55,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:55,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:55,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:33:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:55,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 20:33:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:55,950 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:33:55,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:55,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974986444] [2023-11-28 20:33:55,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974986444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:55,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:33:55,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:33:55,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364330234] [2023-11-28 20:33:55,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:55,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:33:55,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:55,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:33:55,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:33:55,953 INFO L87 Difference]: Start difference. First operand 148 states and 184 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:33:56,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:56,069 INFO L93 Difference]: Finished difference Result 209 states and 261 transitions. [2023-11-28 20:33:56,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:33:56,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-28 20:33:56,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:56,071 INFO L225 Difference]: With dead ends: 209 [2023-11-28 20:33:56,072 INFO L226 Difference]: Without dead ends: 205 [2023-11-28 20:33:56,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:33:56,073 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 141 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:56,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 278 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:33:56,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-28 20:33:56,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 190. [2023-11-28 20:33:56,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 165 states have (on average 1.4181818181818182) internal successors, (234), 181 states have internal predecessors, (234), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:56,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 242 transitions. [2023-11-28 20:33:56,084 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 242 transitions. Word has length 21 [2023-11-28 20:33:56,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:56,085 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 242 transitions. [2023-11-28 20:33:56,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:33:56,085 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 242 transitions. [2023-11-28 20:33:56,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-28 20:33:56,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:56,086 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:56,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-28 20:33:56,086 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:56,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:56,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2954789, now seen corresponding path program 1 times [2023-11-28 20:33:56,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:56,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925079958] [2023-11-28 20:33:56,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:56,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:56,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:33:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:56,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 20:33:56,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:56,136 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:33:56,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:56,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925079958] [2023-11-28 20:33:56,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925079958] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:56,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:33:56,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:33:56,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516258600] [2023-11-28 20:33:56,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:56,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:33:56,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:56,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:33:56,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:33:56,138 INFO L87 Difference]: Start difference. First operand 190 states and 242 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:33:56,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:56,241 INFO L93 Difference]: Finished difference Result 212 states and 262 transitions. [2023-11-28 20:33:56,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:33:56,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-28 20:33:56,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:56,244 INFO L225 Difference]: With dead ends: 212 [2023-11-28 20:33:56,244 INFO L226 Difference]: Without dead ends: 210 [2023-11-28 20:33:56,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:33:56,245 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 144 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:56,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 279 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:33:56,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-28 20:33:56,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 190. [2023-11-28 20:33:56,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 165 states have (on average 1.393939393939394) internal successors, (230), 181 states have internal predecessors, (230), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:56,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 238 transitions. [2023-11-28 20:33:56,256 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 238 transitions. Word has length 21 [2023-11-28 20:33:56,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:56,256 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 238 transitions. [2023-11-28 20:33:56,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:33:56,257 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 238 transitions. [2023-11-28 20:33:56,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-28 20:33:56,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:56,257 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:56,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-28 20:33:56,258 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:56,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:56,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1484703537, now seen corresponding path program 1 times [2023-11-28 20:33:56,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:56,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138289628] [2023-11-28 20:33:56,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:56,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:56,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:33:56,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:56,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:33:56,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:56,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138289628] [2023-11-28 20:33:56,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138289628] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:56,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:33:56,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:33:56,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767135556] [2023-11-28 20:33:56,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:56,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:33:56,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:56,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:33:56,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:33:56,308 INFO L87 Difference]: Start difference. First operand 190 states and 238 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 20:33:56,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:56,381 INFO L93 Difference]: Finished difference Result 338 states and 421 transitions. [2023-11-28 20:33:56,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:33:56,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-28 20:33:56,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:56,383 INFO L225 Difference]: With dead ends: 338 [2023-11-28 20:33:56,383 INFO L226 Difference]: Without dead ends: 172 [2023-11-28 20:33:56,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:33:56,384 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 35 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:56,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 287 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:33:56,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-28 20:33:56,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 168. [2023-11-28 20:33:56,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 143 states have (on average 1.4055944055944056) internal successors, (201), 159 states have internal predecessors, (201), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:56,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 209 transitions. [2023-11-28 20:33:56,396 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 209 transitions. Word has length 21 [2023-11-28 20:33:56,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:56,396 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 209 transitions. [2023-11-28 20:33:56,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 20:33:56,396 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 209 transitions. [2023-11-28 20:33:56,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-28 20:33:56,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:56,397 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:56,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-28 20:33:56,397 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:56,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:56,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1517473701, now seen corresponding path program 1 times [2023-11-28 20:33:56,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:56,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394600708] [2023-11-28 20:33:56,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:56,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:56,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:33:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:56,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:33:56,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:56,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394600708] [2023-11-28 20:33:56,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394600708] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:56,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:33:56,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:33:56,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468064235] [2023-11-28 20:33:56,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:56,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:33:56,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:56,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:33:56,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:33:56,449 INFO L87 Difference]: Start difference. First operand 168 states and 209 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 20:33:56,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:56,573 INFO L93 Difference]: Finished difference Result 333 states and 413 transitions. [2023-11-28 20:33:56,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:33:56,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-11-28 20:33:56,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:56,575 INFO L225 Difference]: With dead ends: 333 [2023-11-28 20:33:56,575 INFO L226 Difference]: Without dead ends: 194 [2023-11-28 20:33:56,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:33:56,576 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 72 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:56,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 357 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:33:56,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-28 20:33:56,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 179. [2023-11-28 20:33:56,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 154 states have (on average 1.3896103896103895) internal successors, (214), 170 states have internal predecessors, (214), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:56,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 222 transitions. [2023-11-28 20:33:56,587 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 222 transitions. Word has length 22 [2023-11-28 20:33:56,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:56,587 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 222 transitions. [2023-11-28 20:33:56,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 20:33:56,587 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 222 transitions. [2023-11-28 20:33:56,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-28 20:33:56,588 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:56,588 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:56,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-28 20:33:56,588 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:56,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:56,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1996657693, now seen corresponding path program 1 times [2023-11-28 20:33:56,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:56,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726746761] [2023-11-28 20:33:56,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:56,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:56,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:33:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:33:56,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:56,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726746761] [2023-11-28 20:33:56,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726746761] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:56,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:33:56,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:33:56,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394746044] [2023-11-28 20:33:56,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:56,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:33:56,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:56,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:33:56,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:33:56,641 INFO L87 Difference]: Start difference. First operand 179 states and 222 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 20:33:56,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:56,736 INFO L93 Difference]: Finished difference Result 185 states and 226 transitions. [2023-11-28 20:33:56,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:33:56,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-11-28 20:33:56,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:56,737 INFO L225 Difference]: With dead ends: 185 [2023-11-28 20:33:56,737 INFO L226 Difference]: Without dead ends: 184 [2023-11-28 20:33:56,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:33:56,738 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 54 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:56,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 352 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:33:56,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-28 20:33:56,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 179. [2023-11-28 20:33:56,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 154 states have (on average 1.3831168831168832) internal successors, (213), 170 states have internal predecessors, (213), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:56,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 221 transitions. [2023-11-28 20:33:56,750 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 221 transitions. Word has length 24 [2023-11-28 20:33:56,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:56,750 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 221 transitions. [2023-11-28 20:33:56,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 20:33:56,750 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 221 transitions. [2023-11-28 20:33:56,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-28 20:33:56,751 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:56,751 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:56,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-28 20:33:56,751 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:56,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:56,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1825325269, now seen corresponding path program 1 times [2023-11-28 20:33:56,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:56,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822226961] [2023-11-28 20:33:56,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:56,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:56,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:33:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:56,788 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:33:56,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:56,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822226961] [2023-11-28 20:33:56,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822226961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:56,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:33:56,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:33:56,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706290353] [2023-11-28 20:33:56,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:56,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:33:56,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:56,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:33:56,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:33:56,791 INFO L87 Difference]: Start difference. First operand 179 states and 221 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 20:33:56,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:56,840 INFO L93 Difference]: Finished difference Result 199 states and 243 transitions. [2023-11-28 20:33:56,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:33:56,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2023-11-28 20:33:56,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:56,842 INFO L225 Difference]: With dead ends: 199 [2023-11-28 20:33:56,842 INFO L226 Difference]: Without dead ends: 198 [2023-11-28 20:33:56,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:33:56,843 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 18 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:56,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 186 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:33:56,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-28 20:33:56,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 173. [2023-11-28 20:33:56,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 148 states have (on average 1.385135135135135) internal successors, (205), 164 states have internal predecessors, (205), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:56,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 213 transitions. [2023-11-28 20:33:56,852 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 213 transitions. Word has length 27 [2023-11-28 20:33:56,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:56,852 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 213 transitions. [2023-11-28 20:33:56,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 20:33:56,852 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 213 transitions. [2023-11-28 20:33:56,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-28 20:33:56,853 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:56,853 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:56,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-28 20:33:56,853 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:56,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:56,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1671810046, now seen corresponding path program 1 times [2023-11-28 20:33:56,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:56,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442551252] [2023-11-28 20:33:56,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:56,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:56,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:33:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:56,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 20:33:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:56,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 20:33:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:56,954 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 20:33:56,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:56,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442551252] [2023-11-28 20:33:56,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442551252] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:33:56,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427149350] [2023-11-28 20:33:56,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:56,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:33:56,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:33:56,958 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:33:56,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 20:33:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:57,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:33:57,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:33:57,091 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-28 20:33:57,091 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:33:57,258 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 20:33:57,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427149350] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:33:57,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:33:57,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2023-11-28 20:33:57,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647019027] [2023-11-28 20:33:57,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:33:57,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-28 20:33:57,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:57,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-28 20:33:57,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:33:57,260 INFO L87 Difference]: Start difference. First operand 173 states and 213 transitions. Second operand has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-28 20:33:57,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:57,683 INFO L93 Difference]: Finished difference Result 675 states and 844 transitions. [2023-11-28 20:33:57,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-28 20:33:57,683 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2023-11-28 20:33:57,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:57,686 INFO L225 Difference]: With dead ends: 675 [2023-11-28 20:33:57,686 INFO L226 Difference]: Without dead ends: 534 [2023-11-28 20:33:57,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=218, Invalid=334, Unknown=0, NotChecked=0, Total=552 [2023-11-28 20:33:57,688 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 338 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:57,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 460 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 20:33:57,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-11-28 20:33:57,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 193. [2023-11-28 20:33:57,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 168 states have (on average 1.3630952380952381) internal successors, (229), 184 states have internal predecessors, (229), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:57,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 237 transitions. [2023-11-28 20:33:57,709 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 237 transitions. Word has length 40 [2023-11-28 20:33:57,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:57,709 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 237 transitions. [2023-11-28 20:33:57,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-28 20:33:57,709 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 237 transitions. [2023-11-28 20:33:57,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-28 20:33:57,710 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:57,710 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:57,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-28 20:33:57,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:33:57,911 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:57,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:57,911 INFO L85 PathProgramCache]: Analyzing trace with hash 572477794, now seen corresponding path program 1 times [2023-11-28 20:33:57,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:57,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687235665] [2023-11-28 20:33:57,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:57,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:57,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:33:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:57,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 20:33:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:57,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:33:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:57,985 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 20:33:57,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:57,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687235665] [2023-11-28 20:33:57,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687235665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:57,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:33:57,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:33:57,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518619747] [2023-11-28 20:33:57,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:57,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:33:57,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:57,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:33:57,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:33:57,987 INFO L87 Difference]: Start difference. First operand 193 states and 237 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 20:33:58,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:58,090 INFO L93 Difference]: Finished difference Result 201 states and 243 transitions. [2023-11-28 20:33:58,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:33:58,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2023-11-28 20:33:58,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:58,092 INFO L225 Difference]: With dead ends: 201 [2023-11-28 20:33:58,092 INFO L226 Difference]: Without dead ends: 198 [2023-11-28 20:33:58,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:33:58,093 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 131 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:58,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 299 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:33:58,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-28 20:33:58,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 181. [2023-11-28 20:33:58,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 159 states have (on average 1.3522012578616351) internal successors, (215), 172 states have internal predecessors, (215), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:58,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 223 transitions. [2023-11-28 20:33:58,108 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 223 transitions. Word has length 43 [2023-11-28 20:33:58,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:58,108 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 223 transitions. [2023-11-28 20:33:58,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 20:33:58,108 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 223 transitions. [2023-11-28 20:33:58,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-28 20:33:58,109 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:58,109 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:58,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-28 20:33:58,109 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:58,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:58,110 INFO L85 PathProgramCache]: Analyzing trace with hash 543850438, now seen corresponding path program 1 times [2023-11-28 20:33:58,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:58,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334260097] [2023-11-28 20:33:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:58,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:58,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:33:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:58,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 20:33:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:58,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:33:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:58,177 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 20:33:58,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:58,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334260097] [2023-11-28 20:33:58,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334260097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:58,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:33:58,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:33:58,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845689219] [2023-11-28 20:33:58,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:58,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:33:58,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:58,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:33:58,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:33:58,179 INFO L87 Difference]: Start difference. First operand 181 states and 223 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 20:33:58,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:58,276 INFO L93 Difference]: Finished difference Result 197 states and 238 transitions. [2023-11-28 20:33:58,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:33:58,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2023-11-28 20:33:58,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:58,278 INFO L225 Difference]: With dead ends: 197 [2023-11-28 20:33:58,278 INFO L226 Difference]: Without dead ends: 195 [2023-11-28 20:33:58,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:33:58,279 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 138 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:58,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 297 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:33:58,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-28 20:33:58,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 180. [2023-11-28 20:33:58,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 159 states have (on average 1.3396226415094339) internal successors, (213), 171 states have internal predecessors, (213), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:58,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 221 transitions. [2023-11-28 20:33:58,292 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 221 transitions. Word has length 43 [2023-11-28 20:33:58,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:58,293 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 221 transitions. [2023-11-28 20:33:58,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 20:33:58,293 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 221 transitions. [2023-11-28 20:33:58,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-28 20:33:58,293 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:58,294 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:58,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-28 20:33:58,294 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:58,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:58,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1741143266, now seen corresponding path program 1 times [2023-11-28 20:33:58,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:58,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551985780] [2023-11-28 20:33:58,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:58,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:58,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:33:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:58,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 20:33:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:58,398 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-28 20:33:58,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:58,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551985780] [2023-11-28 20:33:58,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551985780] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:58,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:33:58,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:33:58,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660895767] [2023-11-28 20:33:58,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:58,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:33:58,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:58,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:33:58,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:33:58,399 INFO L87 Difference]: Start difference. First operand 180 states and 221 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:33:58,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:58,470 INFO L93 Difference]: Finished difference Result 337 states and 415 transitions. [2023-11-28 20:33:58,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:33:58,471 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), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2023-11-28 20:33:58,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:58,473 INFO L225 Difference]: With dead ends: 337 [2023-11-28 20:33:58,473 INFO L226 Difference]: Without dead ends: 202 [2023-11-28 20:33:58,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:33:58,474 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 9 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:58,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 270 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:33:58,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-11-28 20:33:58,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 176. [2023-11-28 20:33:58,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 155 states have (on average 1.3290322580645162) internal successors, (206), 167 states have internal predecessors, (206), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:58,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 214 transitions. [2023-11-28 20:33:58,490 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 214 transitions. Word has length 43 [2023-11-28 20:33:58,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:58,490 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 214 transitions. [2023-11-28 20:33:58,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:33:58,491 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 214 transitions. [2023-11-28 20:33:58,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-28 20:33:58,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:58,491 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:58,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-28 20:33:58,492 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:58,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:58,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1679103652, now seen corresponding path program 1 times [2023-11-28 20:33:58,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:58,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831960805] [2023-11-28 20:33:58,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:58,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:58,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:33:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:58,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 20:33:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:58,612 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:33:58,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:58,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831960805] [2023-11-28 20:33:58,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831960805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:33:58,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:33:58,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:33:58,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451923802] [2023-11-28 20:33:58,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:33:58,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:33:58,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:58,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:33:58,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:33:58,614 INFO L87 Difference]: Start difference. First operand 176 states and 214 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:33:58,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:33:58,719 INFO L93 Difference]: Finished difference Result 378 states and 460 transitions. [2023-11-28 20:33:58,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:33:58,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2023-11-28 20:33:58,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:33:58,721 INFO L225 Difference]: With dead ends: 378 [2023-11-28 20:33:58,721 INFO L226 Difference]: Without dead ends: 245 [2023-11-28 20:33:58,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:33:58,722 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 42 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:33:58,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 312 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:33:58,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2023-11-28 20:33:58,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 176. [2023-11-28 20:33:58,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 155 states have (on average 1.3225806451612903) internal successors, (205), 167 states have internal predecessors, (205), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:33:58,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 213 transitions. [2023-11-28 20:33:58,738 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 213 transitions. Word has length 43 [2023-11-28 20:33:58,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:33:58,738 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 213 transitions. [2023-11-28 20:33:58,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:33:58,738 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 213 transitions. [2023-11-28 20:33:58,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-28 20:33:58,739 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:33:58,739 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:33:58,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-28 20:33:58,739 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:33:58,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:33:58,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1278262412, now seen corresponding path program 1 times [2023-11-28 20:33:58,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:33:58,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534603946] [2023-11-28 20:33:58,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:58,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:33:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:58,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:33:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:58,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 20:33:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:58,931 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:33:58,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:33:58,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534603946] [2023-11-28 20:33:58,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534603946] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:33:58,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37796350] [2023-11-28 20:33:58,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:33:58,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:33:58,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:33:58,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:33:58,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 20:33:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:33:59,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-28 20:33:59,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:33:59,566 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:33:59,566 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:33:59,950 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:33:59,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37796350] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:33:59,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:33:59,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 8] total 18 [2023-11-28 20:33:59,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922947622] [2023-11-28 20:33:59,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:33:59,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-28 20:33:59,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:33:59,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-28 20:33:59,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=191, Unknown=0, NotChecked=0, Total=306 [2023-11-28 20:33:59,953 INFO L87 Difference]: Start difference. First operand 176 states and 213 transitions. Second operand has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 20:34:03,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:34:04,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:34:04,307 INFO L93 Difference]: Finished difference Result 487 states and 589 transitions. [2023-11-28 20:34:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-28 20:34:04,308 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2023-11-28 20:34:04,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:34:04,310 INFO L225 Difference]: With dead ends: 487 [2023-11-28 20:34:04,310 INFO L226 Difference]: Without dead ends: 341 [2023-11-28 20:34:04,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=249, Invalid=401, Unknown=0, NotChecked=0, Total=650 [2023-11-28 20:34:04,312 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 223 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-28 20:34:04,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 505 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-28 20:34:04,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-28 20:34:04,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 176. [2023-11-28 20:34:04,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 155 states have (on average 1.2967741935483872) internal successors, (201), 167 states have internal predecessors, (201), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:34:04,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 209 transitions. [2023-11-28 20:34:04,326 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 209 transitions. Word has length 48 [2023-11-28 20:34:04,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:34:04,326 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 209 transitions. [2023-11-28 20:34:04,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 20:34:04,327 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 209 transitions. [2023-11-28 20:34:04,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-28 20:34:04,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:34:04,327 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:34:04,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-28 20:34:04,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:34:04,532 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:34:04,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:34:04,532 INFO L85 PathProgramCache]: Analyzing trace with hash 392243646, now seen corresponding path program 1 times [2023-11-28 20:34:04,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:34:04,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187305362] [2023-11-28 20:34:04,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:34:04,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:34:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:04,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:34:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:04,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 20:34:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:04,747 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:34:04,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:34:04,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187305362] [2023-11-28 20:34:04,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187305362] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:34:04,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161685513] [2023-11-28 20:34:04,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:34:04,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:34:04,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:34:04,749 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:34:04,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 20:34:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:04,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 20:34:04,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:34:04,919 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:34:04,919 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:34:05,197 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:34:05,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161685513] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:34:05,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:34:05,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2023-11-28 20:34:05,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436263739] [2023-11-28 20:34:05,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:34:05,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-28 20:34:05,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:34:05,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-28 20:34:05,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=420, Unknown=0, NotChecked=0, Total=650 [2023-11-28 20:34:05,201 INFO L87 Difference]: Start difference. First operand 176 states and 209 transitions. Second operand has 26 states, 26 states have (on average 4.884615384615385) internal successors, (127), 26 states have internal predecessors, (127), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 20:34:05,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:34:05,873 INFO L93 Difference]: Finished difference Result 1060 states and 1292 transitions. [2023-11-28 20:34:05,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-28 20:34:05,873 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.884615384615385) internal successors, (127), 26 states have internal predecessors, (127), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 60 [2023-11-28 20:34:05,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:34:05,877 INFO L225 Difference]: With dead ends: 1060 [2023-11-28 20:34:05,877 INFO L226 Difference]: Without dead ends: 936 [2023-11-28 20:34:05,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=701, Invalid=1105, Unknown=0, NotChecked=0, Total=1806 [2023-11-28 20:34:05,879 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 673 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:34:05,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 696 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 20:34:05,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2023-11-28 20:34:05,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 216. [2023-11-28 20:34:05,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 195 states have (on average 1.2769230769230768) internal successors, (249), 207 states have internal predecessors, (249), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:34:05,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 257 transitions. [2023-11-28 20:34:05,911 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 257 transitions. Word has length 60 [2023-11-28 20:34:05,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:34:05,912 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 257 transitions. [2023-11-28 20:34:05,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.884615384615385) internal successors, (127), 26 states have internal predecessors, (127), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 20:34:05,912 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 257 transitions. [2023-11-28 20:34:05,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-28 20:34:05,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:34:05,913 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:34:05,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-28 20:34:06,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:34:06,114 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:34:06,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:34:06,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1797603188, now seen corresponding path program 2 times [2023-11-28 20:34:06,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:34:06,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27973056] [2023-11-28 20:34:06,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:34:06,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:34:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:06,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:34:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:06,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 20:34:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:34:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 16 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:34:06,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:34:06,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27973056] [2023-11-28 20:34:06,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27973056] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:34:06,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106452761] [2023-11-28 20:34:06,529 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:34:06,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:34:06,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:34:06,532 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:34:06,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-28 20:34:06,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:34:06,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:34:06,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-28 20:34:06,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:34:12,777 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 16 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:34:12,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:34:38,487 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 16 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:34:38,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106452761] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:34:38,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:34:38,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17, 16] total 39 [2023-11-28 20:34:38,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754229517] [2023-11-28 20:34:38,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:34:38,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-11-28 20:34:38,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:34:38,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-11-28 20:34:38,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=1033, Unknown=2, NotChecked=0, Total=1482 [2023-11-28 20:34:38,490 INFO L87 Difference]: Start difference. First operand 216 states and 257 transitions. Second operand has 39 states, 39 states have (on average 3.641025641025641) internal successors, (142), 39 states have internal predecessors, (142), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 20:34:46,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:34:54,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:34:58,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:35:02,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:35:03,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:35:13,261 WARN L293 SmtUtils]: Spent 9.31s on a formula simplification. DAG size of input: 54 DAG size of output: 16 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 20:35:17,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:35:47,649 WARN L293 SmtUtils]: Spent 6.55s on a formula simplification. DAG size of input: 50 DAG size of output: 14 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 20:35:50,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:35:54,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:35:58,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:36:07,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:36:09,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:36:22,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:36:23,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:36:29,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:36:34,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:36:39,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:36:43,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:36:46,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:36:46,673 INFO L93 Difference]: Finished difference Result 667 states and 805 transitions. [2023-11-28 20:36:46,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-28 20:36:46,674 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.641025641025641) internal successors, (142), 39 states have internal predecessors, (142), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 68 [2023-11-28 20:36:46,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:36:46,677 INFO L225 Difference]: With dead ends: 667 [2023-11-28 20:36:46,677 INFO L226 Difference]: Without dead ends: 521 [2023-11-28 20:36:46,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1056 ImplicationChecksByTransitivity, 80.8s TimeCoverageRelationStatistics Valid=965, Invalid=1999, Unknown=6, NotChecked=0, Total=2970 [2023-11-28 20:36:46,680 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 339 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 57 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.7s IncrementalHoareTripleChecker+Time [2023-11-28 20:36:46,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 1433 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1255 Invalid, 9 Unknown, 0 Unchecked, 71.7s Time] [2023-11-28 20:36:46,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-11-28 20:36:46,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 216. [2023-11-28 20:36:46,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 195 states have (on average 1.235897435897436) internal successors, (241), 207 states have internal predecessors, (241), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:36:46,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 249 transitions. [2023-11-28 20:36:46,702 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 249 transitions. Word has length 68 [2023-11-28 20:36:46,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:36:46,703 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 249 transitions. [2023-11-28 20:36:46,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.641025641025641) internal successors, (142), 39 states have internal predecessors, (142), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 20:36:46,703 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 249 transitions. [2023-11-28 20:36:46,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-28 20:36:46,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:36:46,705 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:36:46,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-28 20:36:46,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:36:46,905 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:36:46,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:46,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1019163070, now seen corresponding path program 2 times [2023-11-28 20:36:46,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:46,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262416166] [2023-11-28 20:36:46,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:46,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:47,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:36:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:47,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 20:36:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:47,468 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 8 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:36:47,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:36:47,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262416166] [2023-11-28 20:36:47,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262416166] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:36:47,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879260227] [2023-11-28 20:36:47,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:36:47,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:36:47,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:47,470 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:36:47,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-28 20:36:47,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:36:47,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:36:47,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 20:36:47,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:47,865 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 8 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:36:47,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:36:48,570 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 8 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:36:48,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879260227] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:36:48,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:36:48,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2023-11-28 20:36:48,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544217722] [2023-11-28 20:36:48,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:36:48,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-28 20:36:48,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:36:48,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-28 20:36:48,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=1604, Unknown=0, NotChecked=0, Total=2450 [2023-11-28 20:36:48,574 INFO L87 Difference]: Start difference. First operand 216 states and 249 transitions. Second operand has 50 states, 50 states have (on average 4.94) internal successors, (247), 50 states have internal predecessors, (247), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 20:36:50,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:36:50,247 INFO L93 Difference]: Finished difference Result 1908 states and 2324 transitions. [2023-11-28 20:36:50,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-11-28 20:36:50,248 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 4.94) internal successors, (247), 50 states have internal predecessors, (247), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 100 [2023-11-28 20:36:50,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:36:50,256 INFO L225 Difference]: With dead ends: 1908 [2023-11-28 20:36:50,256 INFO L226 Difference]: Without dead ends: 1784 [2023-11-28 20:36:50,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1690 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=2617, Invalid=4189, Unknown=0, NotChecked=0, Total=6806 [2023-11-28 20:36:50,261 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 1336 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-28 20:36:50,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 899 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-28 20:36:50,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2023-11-28 20:36:50,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 296. [2023-11-28 20:36:50,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 275 states have (on average 1.2254545454545454) internal successors, (337), 287 states have internal predecessors, (337), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 20:36:50,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 345 transitions. [2023-11-28 20:36:50,322 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 345 transitions. Word has length 100 [2023-11-28 20:36:50,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:36:50,322 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 345 transitions. [2023-11-28 20:36:50,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 4.94) internal successors, (247), 50 states have internal predecessors, (247), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 20:36:50,323 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 345 transitions. [2023-11-28 20:36:50,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-28 20:36:50,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:36:50,324 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:36:50,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-28 20:36:50,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:36:50,527 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-28 20:36:50,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:50,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1615804276, now seen corresponding path program 3 times [2023-11-28 20:36:50,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:50,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039185017] [2023-11-28 20:36:50,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:50,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:50,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:36:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:50,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 20:36:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:51,532 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 16 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:36:51,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:36:51,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039185017] [2023-11-28 20:36:51,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039185017] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:36:51,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825597499] [2023-11-28 20:36:51,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:36:51,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:36:51,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:51,534 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:36:51,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ad8dfa-aec4-49a2-bd98-2cf0033da585/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-28 20:36:52,592 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-11-28 20:36:52,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:36:52,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-28 20:36:52,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:37:46,001 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 16 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:37:46,001 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:42:05,693 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 16 proven. 450 refuted. 5 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:42:05,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825597499] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:42:05,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:42:05,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 33, 32] total 78 [2023-11-28 20:42:05,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347362726] [2023-11-28 20:42:05,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:42:05,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2023-11-28 20:42:05,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:42:05,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2023-11-28 20:42:05,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1579, Invalid=4396, Unknown=31, NotChecked=0, Total=6006 [2023-11-28 20:42:05,698 INFO L87 Difference]: Start difference. First operand 296 states and 345 transitions. Second operand has 78 states, 78 states have (on average 3.3333333333333335) internal successors, (260), 78 states have internal predecessors, (260), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 20:42:14,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:42:19,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:42:23,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:42:28,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:42:32,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:42:35,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:42:39,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:42:43,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:42:48,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:42:51,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:42:55,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:42:57,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:43:00,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:43:04,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:43:09,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:43:13,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:43:17,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:43:21,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:43:24,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:43:29,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:43:34,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:43:38,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:43:42,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:43:44,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:43:49,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:44:16,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:44:21,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:44:25,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:44:30,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:44:33,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:44:37,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:44:41,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:44:45,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:44:52,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:44:55,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:44:59,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:47:45,863 WARN L293 SmtUtils]: Spent 2.20m on a formula simplification. DAG size of input: 95 DAG size of output: 56 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 20:47:50,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:47:54,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:47:56,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:47:58,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:48:03,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:48:07,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:48:11,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:48:15,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:48:20,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:48:24,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.54s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:48:28,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:48:32,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:48:36,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:48:41,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.90s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:48:45,110 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse14 (mod c_base2flt_~m 2147483648)) (.cse15 (mod c_base2flt_~m 536870912)) (.cse16 (mod c_base2flt_~m 268435456)) (.cse10 (mod c_base2flt_~m 4294967296)) (.cse4 (mod c_base2flt_~m 1073741824))) (let ((.cse0 (mod c_base2flt_~m 67108864)) (.cse7 (mod c_base2flt_~m 2097152)) (.cse9 (mod c_base2flt_~m 134217728)) (.cse3 (mod c_base2flt_~m 8388608)) (.cse5 (mod c_base2flt_~m 4194304)) (.cse6 (< 4194303 .cse4)) (.cse8 (< 16777215 .cse10)) (.cse12 (mod c_base2flt_~m 1048576)) (.cse13 (< 1048575 .cse16)) (.cse11 (< 2097151 .cse15)) (.cse1 (< 8388607 .cse14)) (.cse2 (not (= |c_base2flt_#in~m| 1)))) (and (or (< 262143 .cse0) (< (mod c_base2flt_~m 33554432) 131072) .cse1 .cse2) (or (< 65535 (mod c_base2flt_~m 16777216)) (< .cse3 32768) .cse1 .cse2) (or (< .cse4 4194304) .cse1 .cse2) (or (< 16383 .cse5) .cse6 (< .cse7 8192) .cse1 .cse2) (or .cse8 (< .cse0 262144) (< 524287 .cse9) .cse2) (or (< .cse10 16777216) .cse2) (or (< 8191 .cse7) .cse11 (< .cse12 4096) .cse1 .cse2) (or (< .cse9 524288) .cse8 .cse13 .cse2) (or (< 32767 .cse3) (< .cse5 16384) .cse1 .cse2) (or (< .cse14 8388608) .cse2) (or .cse6 (< .cse15 2097152) .cse1 .cse2) (or .cse8 (< (mod c_base2flt_~m 524288) 2048) (< 4095 .cse12) .cse13 .cse2) (or .cse11 .cse1 .cse2 (< .cse16 1048576))))) is different from true [2023-11-28 20:48:49,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:48:53,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:48:57,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []