./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-3.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-3.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl --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 bd1e20a7a2bac41d4f53b8467ce4dcd444e356387bd290a75ef99d78cf8ebeb3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:31:05,984 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:31:06,117 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:31:06,124 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:31:06,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:31:06,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:31:06,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:31:06,172 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:31:06,174 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:31:06,181 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:31:06,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:31:06,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:31:06,183 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:31:06,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:31:06,186 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:31:06,186 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:31:06,186 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:31:06,187 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:31:06,187 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:31:06,188 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:31:06,188 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:31:06,189 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:31:06,190 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:31:06,190 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:31:06,190 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:31:06,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:31:06,191 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:31:06,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:31:06,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:31:06,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:31:06,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:31:06,195 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:31:06,195 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:31:06,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:31:06,196 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:31:06,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:31:06,196 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:31:06,196 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:31:06,197 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:31:06,197 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:31:06,197 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:31:06,198 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_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd1e20a7a2bac41d4f53b8467ce4dcd444e356387bd290a75ef99d78cf8ebeb3 [2023-11-12 02:31:06,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:31:06,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:31:06,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:31:06,536 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:31:06,540 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:31:06,542 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/bitvector/soft_float_4-3.c.cil.c [2023-11-12 02:31:09,809 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:31:10,094 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:31:10,095 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/sv-benchmarks/c/bitvector/soft_float_4-3.c.cil.c [2023-11-12 02:31:10,104 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/data/37027bd22/498ddc19404d4a9e9c34e1a727d1d837/FLAGfd24e377c [2023-11-12 02:31:10,119 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/data/37027bd22/498ddc19404d4a9e9c34e1a727d1d837 [2023-11-12 02:31:10,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:31:10,132 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:31:10,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:31:10,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:31:10,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:31:10,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:31:10" (1/1) ... [2023-11-12 02:31:10,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e56a991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:10, skipping insertion in model container [2023-11-12 02:31:10,162 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:31:10" (1/1) ... [2023-11-12 02:31:10,217 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:31:10,405 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:31:10,430 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:31:10,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:31:10,495 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:31:10,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:10 WrapperNode [2023-11-12 02:31:10,496 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:31:10,498 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:31:10,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:31:10,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:31:10,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:10" (1/1) ... [2023-11-12 02:31:10,514 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:10" (1/1) ... [2023-11-12 02:31:10,536 INFO L138 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2023-11-12 02:31:10,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:31:10,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:31:10,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:31:10,537 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:31:10,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:10" (1/1) ... [2023-11-12 02:31:10,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:10" (1/1) ... [2023-11-12 02:31:10,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:10" (1/1) ... [2023-11-12 02:31:10,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:10" (1/1) ... [2023-11-12 02:31:10,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:10" (1/1) ... [2023-11-12 02:31:10,565 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:10" (1/1) ... [2023-11-12 02:31:10,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:10" (1/1) ... [2023-11-12 02:31:10,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:10" (1/1) ... [2023-11-12 02:31:10,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:31:10,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:31:10,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:31:10,573 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:31:10,574 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:10" (1/1) ... [2023-11-12 02:31:10,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:31:10,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:10,610 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:31:10,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:31:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:31:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:31:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-11-12 02:31:10,651 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-11-12 02:31:10,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:31:10,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:31:10,651 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2023-11-12 02:31:10,651 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2023-11-12 02:31:10,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 02:31:10,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 02:31:10,724 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:31:10,726 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:31:11,175 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:31:11,184 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:31:11,184 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:31:11,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:11 BoogieIcfgContainer [2023-11-12 02:31:11,187 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:31:11,190 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:31:11,190 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:31:11,194 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:31:11,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:31:10" (1/3) ... [2023-11-12 02:31:11,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3523b58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:31:11, skipping insertion in model container [2023-11-12 02:31:11,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:10" (2/3) ... [2023-11-12 02:31:11,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3523b58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:31:11, skipping insertion in model container [2023-11-12 02:31:11,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:11" (3/3) ... [2023-11-12 02:31:11,198 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_4-3.c.cil.c [2023-11-12 02:31:11,214 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:31:11,214 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-12 02:31:11,269 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:31:11,277 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;@8dfb8ae, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:31:11,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-12 02:31:11,282 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 79 states have (on average 1.6708860759493671) internal successors, (132), 101 states have internal predecessors, (132), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:31:11,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 02:31:11,291 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:11,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:11,292 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:11,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:11,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1463688594, now seen corresponding path program 1 times [2023-11-12 02:31:11,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:11,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653294609] [2023-11-12 02:31:11,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:11,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:11,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:11,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:11,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653294609] [2023-11-12 02:31:11,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653294609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:11,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:11,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:31:11,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000913759] [2023-11-12 02:31:11,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:11,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:31:11,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:11,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:31:11,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:31:11,639 INFO L87 Difference]: Start difference. First operand has 114 states, 79 states have (on average 1.6708860759493671) internal successors, (132), 101 states have internal predecessors, (132), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 02:31:11,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:11,803 INFO L93 Difference]: Finished difference Result 277 states and 391 transitions. [2023-11-12 02:31:11,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:31:11,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 9 [2023-11-12 02:31:11,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:11,817 INFO L225 Difference]: With dead ends: 277 [2023-11-12 02:31:11,817 INFO L226 Difference]: Without dead ends: 156 [2023-11-12 02:31:11,822 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 [2023-11-12 02:31:11,826 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 87 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:11,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 370 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:31:11,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-12 02:31:11,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 143. [2023-11-12 02:31:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 113 states have (on average 1.5486725663716814) internal successors, (175), 131 states have internal predecessors, (175), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:31:11,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 190 transitions. [2023-11-12 02:31:11,884 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 190 transitions. Word has length 9 [2023-11-12 02:31:11,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:11,884 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 190 transitions. [2023-11-12 02:31:11,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 02:31:11,885 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 190 transitions. [2023-11-12 02:31:11,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:31:11,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:11,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:11,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:31:11,888 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:11,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:11,889 INFO L85 PathProgramCache]: Analyzing trace with hash -126846578, now seen corresponding path program 1 times [2023-11-12 02:31:11,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:11,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645914997] [2023-11-12 02:31:11,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:11,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:12,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:12,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645914997] [2023-11-12 02:31:12,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645914997] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:12,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:12,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:31:12,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356991456] [2023-11-12 02:31:12,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:12,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:31:12,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:12,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:31:12,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:31:12,020 INFO L87 Difference]: Start difference. First operand 143 states and 190 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) 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) [2023-11-12 02:31:12,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:12,115 INFO L93 Difference]: Finished difference Result 271 states and 358 transitions. [2023-11-12 02:31:12,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:31:12,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) 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 [2023-11-12 02:31:12,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:12,129 INFO L225 Difference]: With dead ends: 271 [2023-11-12 02:31:12,129 INFO L226 Difference]: Without dead ends: 157 [2023-11-12 02:31:12,133 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 [2023-11-12 02:31:12,135 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 13 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:12,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 227 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:31:12,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-11-12 02:31:12,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 147. [2023-11-12 02:31:12,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 117 states have (on average 1.5299145299145298) internal successors, (179), 135 states have internal predecessors, (179), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:31:12,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 194 transitions. [2023-11-12 02:31:12,160 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 194 transitions. Word has length 14 [2023-11-12 02:31:12,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:12,160 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 194 transitions. [2023-11-12 02:31:12,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) 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) [2023-11-12 02:31:12,161 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 194 transitions. [2023-11-12 02:31:12,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:31:12,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:12,162 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:12,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:31:12,163 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:12,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:12,164 INFO L85 PathProgramCache]: Analyzing trace with hash -126957892, now seen corresponding path program 1 times [2023-11-12 02:31:12,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:12,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995806984] [2023-11-12 02:31:12,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:12,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:12,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 02:31:12,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:12,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995806984] [2023-11-12 02:31:12,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995806984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:12,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:12,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:31:12,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538078595] [2023-11-12 02:31:12,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:12,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:31:12,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:12,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:31:12,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:31:12,266 INFO L87 Difference]: Start difference. First operand 147 states and 194 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) [2023-11-12 02:31:12,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:12,340 INFO L93 Difference]: Finished difference Result 153 states and 201 transitions. [2023-11-12 02:31:12,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:31:12,341 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 14 [2023-11-12 02:31:12,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:12,365 INFO L225 Difference]: With dead ends: 153 [2023-11-12 02:31:12,365 INFO L226 Difference]: Without dead ends: 152 [2023-11-12 02:31:12,368 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 [2023-11-12 02:31:12,372 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 4 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:12,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 227 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:31:12,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-12 02:31:12,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 146. [2023-11-12 02:31:12,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 117 states have (on average 1.5128205128205128) internal successors, (177), 134 states have internal predecessors, (177), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:31:12,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 192 transitions. [2023-11-12 02:31:12,406 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 192 transitions. Word has length 14 [2023-11-12 02:31:12,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:12,407 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 192 transitions. [2023-11-12 02:31:12,407 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) [2023-11-12 02:31:12,407 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 192 transitions. [2023-11-12 02:31:12,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:31:12,408 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:12,408 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:12,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:31:12,409 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:12,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:12,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1255999232, now seen corresponding path program 1 times [2023-11-12 02:31:12,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:12,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190882389] [2023-11-12 02:31:12,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:12,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:12,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:12,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:12,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190882389] [2023-11-12 02:31:12,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190882389] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:31:12,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970828022] [2023-11-12 02:31:12,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:12,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:12,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:12,596 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:31:12,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:31:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:12,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:31:12,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:31:12,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:12,772 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:31:12,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970828022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:12,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:31:12,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-12 02:31:12,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752674966] [2023-11-12 02:31:12,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:12,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:31:12,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:12,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:31:12,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:31:12,781 INFO L87 Difference]: Start difference. First operand 146 states and 192 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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) [2023-11-12 02:31:12,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:12,871 INFO L93 Difference]: Finished difference Result 183 states and 243 transitions. [2023-11-12 02:31:12,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:31:12,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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 [2023-11-12 02:31:12,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:12,874 INFO L225 Difference]: With dead ends: 183 [2023-11-12 02:31:12,874 INFO L226 Difference]: Without dead ends: 181 [2023-11-12 02:31:12,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:31:12,888 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 55 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:12,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 234 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:31:12,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-12 02:31:12,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 152. [2023-11-12 02:31:12,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 123 states have (on average 1.4878048780487805) internal successors, (183), 140 states have internal predecessors, (183), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:31:12,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 198 transitions. [2023-11-12 02:31:12,926 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 198 transitions. Word has length 15 [2023-11-12 02:31:12,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:12,927 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 198 transitions. [2023-11-12 02:31:12,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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) [2023-11-12 02:31:12,928 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 198 transitions. [2023-11-12 02:31:12,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:31:12,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:12,932 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:12,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:31:13,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:13,138 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:13,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:13,139 INFO L85 PathProgramCache]: Analyzing trace with hash 359272701, now seen corresponding path program 1 times [2023-11-12 02:31:13,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:13,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729008941] [2023-11-12 02:31:13,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:13,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:13,259 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:13,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:13,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729008941] [2023-11-12 02:31:13,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729008941] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:31:13,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994611292] [2023-11-12 02:31:13,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:13,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:13,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:13,261 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:31:13,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:31:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:13,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:31:13,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:31:13,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:13,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:31:13,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994611292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:13,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:31:13,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-12 02:31:13,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102748679] [2023-11-12 02:31:13,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:13,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:31:13,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:13,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:31:13,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:31:13,361 INFO L87 Difference]: Start difference. First operand 152 states and 198 transitions. Second operand has 3 states, 2 states have (on average 7.0) 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) [2023-11-12 02:31:13,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:13,426 INFO L93 Difference]: Finished difference Result 165 states and 213 transitions. [2023-11-12 02:31:13,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:31:13,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) 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 [2023-11-12 02:31:13,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:13,430 INFO L225 Difference]: With dead ends: 165 [2023-11-12 02:31:13,430 INFO L226 Difference]: Without dead ends: 164 [2023-11-12 02:31:13,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:31:13,431 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 29 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:13,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 217 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:31:13,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-11-12 02:31:13,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 154. [2023-11-12 02:31:13,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 125 states have (on average 1.48) internal successors, (185), 142 states have internal predecessors, (185), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:31:13,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 200 transitions. [2023-11-12 02:31:13,464 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 200 transitions. Word has length 15 [2023-11-12 02:31:13,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:13,464 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 200 transitions. [2023-11-12 02:31:13,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) 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) [2023-11-12 02:31:13,465 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 200 transitions. [2023-11-12 02:31:13,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 02:31:13,471 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:13,471 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:13,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:31:13,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:13,678 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:13,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:13,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1511768106, now seen corresponding path program 1 times [2023-11-12 02:31:13,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:13,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377524923] [2023-11-12 02:31:13,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:13,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:13,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:31:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:13,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:13,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:13,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377524923] [2023-11-12 02:31:13,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377524923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:13,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:13,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:31:13,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822608561] [2023-11-12 02:31:13,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:13,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:31:13,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:13,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:31:13,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:31:13,762 INFO L87 Difference]: Start difference. First operand 154 states and 200 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-12 02:31:13,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:13,878 INFO L93 Difference]: Finished difference Result 221 states and 286 transitions. [2023-11-12 02:31:13,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:31:13,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 17 [2023-11-12 02:31:13,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:13,881 INFO L225 Difference]: With dead ends: 221 [2023-11-12 02:31:13,881 INFO L226 Difference]: Without dead ends: 217 [2023-11-12 02:31:13,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:31:13,882 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 96 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:13,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 402 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:31:13,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-11-12 02:31:13,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 198. [2023-11-12 02:31:13,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 169 states have (on average 1.467455621301775) internal successors, (248), 185 states have internal predecessors, (248), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:31:13,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 263 transitions. [2023-11-12 02:31:13,898 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 263 transitions. Word has length 17 [2023-11-12 02:31:13,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:13,898 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 263 transitions. [2023-11-12 02:31:13,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-12 02:31:13,899 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 263 transitions. [2023-11-12 02:31:13,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 02:31:13,899 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:13,900 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:13,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:31:13,900 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:13,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:13,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1483140750, now seen corresponding path program 1 times [2023-11-12 02:31:13,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:13,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496622979] [2023-11-12 02:31:13,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:13,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:13,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:31:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:13,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:13,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:13,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496622979] [2023-11-12 02:31:13,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496622979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:13,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:13,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:31:13,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147997823] [2023-11-12 02:31:13,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:13,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:31:13,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:13,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:31:13,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:31:14,000 INFO L87 Difference]: Start difference. First operand 198 states and 263 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-12 02:31:14,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:14,107 INFO L93 Difference]: Finished difference Result 223 states and 287 transitions. [2023-11-12 02:31:14,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:31:14,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 17 [2023-11-12 02:31:14,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:14,110 INFO L225 Difference]: With dead ends: 223 [2023-11-12 02:31:14,119 INFO L226 Difference]: Without dead ends: 220 [2023-11-12 02:31:14,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:31:14,120 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 96 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:14,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 402 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:31:14,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-11-12 02:31:14,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 195. [2023-11-12 02:31:14,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 167 states have (on average 1.437125748502994) internal successors, (240), 182 states have internal predecessors, (240), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:31:14,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 255 transitions. [2023-11-12 02:31:14,137 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 255 transitions. Word has length 17 [2023-11-12 02:31:14,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:14,138 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 255 transitions. [2023-11-12 02:31:14,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-12 02:31:14,138 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 255 transitions. [2023-11-12 02:31:14,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 02:31:14,139 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:14,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:14,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:31:14,140 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:14,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:14,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1048816756, now seen corresponding path program 1 times [2023-11-12 02:31:14,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:14,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982814130] [2023-11-12 02:31:14,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:14,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:14,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:14,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:14,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982814130] [2023-11-12 02:31:14,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982814130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:14,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:14,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:31:14,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380037764] [2023-11-12 02:31:14,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:14,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:31:14,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:14,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:31:14,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:31:14,198 INFO L87 Difference]: Start difference. First operand 195 states and 255 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-12 02:31:14,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:14,256 INFO L93 Difference]: Finished difference Result 370 states and 481 transitions. [2023-11-12 02:31:14,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:31:14,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 16 [2023-11-12 02:31:14,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:14,274 INFO L225 Difference]: With dead ends: 370 [2023-11-12 02:31:14,275 INFO L226 Difference]: Without dead ends: 206 [2023-11-12 02:31:14,275 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 [2023-11-12 02:31:14,276 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 9 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:14,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 215 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:31:14,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-11-12 02:31:14,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 196. [2023-11-12 02:31:14,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 168 states have (on average 1.4047619047619047) internal successors, (236), 183 states have internal predecessors, (236), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:31:14,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 251 transitions. [2023-11-12 02:31:14,292 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 251 transitions. Word has length 16 [2023-11-12 02:31:14,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:14,297 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 251 transitions. [2023-11-12 02:31:14,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-12 02:31:14,298 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 251 transitions. [2023-11-12 02:31:14,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 02:31:14,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:14,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:14,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:31:14,300 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:14,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:14,304 INFO L85 PathProgramCache]: Analyzing trace with hash 726190606, now seen corresponding path program 1 times [2023-11-12 02:31:14,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:14,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970817812] [2023-11-12 02:31:14,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:14,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:14,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:14,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:14,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970817812] [2023-11-12 02:31:14,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970817812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:14,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:14,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:31:14,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794914966] [2023-11-12 02:31:14,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:14,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:31:14,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:14,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:31:14,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:31:14,385 INFO L87 Difference]: Start difference. First operand 196 states and 251 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-12 02:31:14,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:14,445 INFO L93 Difference]: Finished difference Result 346 states and 442 transitions. [2023-11-12 02:31:14,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:31:14,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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 16 [2023-11-12 02:31:14,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:14,447 INFO L225 Difference]: With dead ends: 346 [2023-11-12 02:31:14,448 INFO L226 Difference]: Without dead ends: 155 [2023-11-12 02:31:14,449 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 [2023-11-12 02:31:14,449 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 7 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:14,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 337 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:31:14,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-11-12 02:31:14,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-11-12 02:31:14,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 127 states have (on average 1.4251968503937007) internal successors, (181), 142 states have internal predecessors, (181), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:31:14,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 196 transitions. [2023-11-12 02:31:14,461 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 196 transitions. Word has length 16 [2023-11-12 02:31:14,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:14,461 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 196 transitions. [2023-11-12 02:31:14,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-12 02:31:14,462 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 196 transitions. [2023-11-12 02:31:14,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 02:31:14,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:14,463 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:14,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:31:14,463 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:14,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:14,464 INFO L85 PathProgramCache]: Analyzing trace with hash 276211361, now seen corresponding path program 1 times [2023-11-12 02:31:14,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:14,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489237706] [2023-11-12 02:31:14,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:14,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:14,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:31:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:14,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:31:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:14,539 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:31:14,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:14,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489237706] [2023-11-12 02:31:14,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489237706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:14,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:14,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:31:14,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215123371] [2023-11-12 02:31:14,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:14,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:31:14,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:14,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:31:14,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:31:14,542 INFO L87 Difference]: Start difference. First operand 155 states and 196 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-12 02:31:14,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:14,656 INFO L93 Difference]: Finished difference Result 169 states and 208 transitions. [2023-11-12 02:31:14,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:31:14,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 24 [2023-11-12 02:31:14,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:14,659 INFO L225 Difference]: With dead ends: 169 [2023-11-12 02:31:14,659 INFO L226 Difference]: Without dead ends: 166 [2023-11-12 02:31:14,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:31:14,660 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 80 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:14,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 452 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:31:14,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-11-12 02:31:14,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 152. [2023-11-12 02:31:14,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 126 states have (on average 1.4126984126984128) internal successors, (178), 139 states have internal predecessors, (178), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:31:14,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 193 transitions. [2023-11-12 02:31:14,672 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 193 transitions. Word has length 24 [2023-11-12 02:31:14,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:14,673 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 193 transitions. [2023-11-12 02:31:14,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-12 02:31:14,673 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 193 transitions. [2023-11-12 02:31:14,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 02:31:14,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:14,674 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:14,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:31:14,674 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:14,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:14,675 INFO L85 PathProgramCache]: Analyzing trace with hash 247584005, now seen corresponding path program 1 times [2023-11-12 02:31:14,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:14,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356779868] [2023-11-12 02:31:14,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:14,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:14,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:31:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:14,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-12 02:31:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:14,728 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:31:14,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:14,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356779868] [2023-11-12 02:31:14,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356779868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:14,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:14,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:31:14,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429632195] [2023-11-12 02:31:14,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:14,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:31:14,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:14,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:31:14,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:31:14,730 INFO L87 Difference]: Start difference. First operand 152 states and 193 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-12 02:31:14,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:14,833 INFO L93 Difference]: Finished difference Result 171 states and 210 transitions. [2023-11-12 02:31:14,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:31:14,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 24 [2023-11-12 02:31:14,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:14,835 INFO L225 Difference]: With dead ends: 171 [2023-11-12 02:31:14,835 INFO L226 Difference]: Without dead ends: 169 [2023-11-12 02:31:14,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:31:14,837 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 84 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:14,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 461 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:31:14,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-11-12 02:31:14,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 151. [2023-11-12 02:31:14,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 126 states have (on average 1.3888888888888888) internal successors, (175), 138 states have internal predecessors, (175), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:31:14,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 190 transitions. [2023-11-12 02:31:14,849 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 190 transitions. Word has length 24 [2023-11-12 02:31:14,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:14,850 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 190 transitions. [2023-11-12 02:31:14,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-12 02:31:14,850 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 190 transitions. [2023-11-12 02:31:14,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-12 02:31:14,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:14,851 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] [2023-11-12 02:31:14,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:31:14,851 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:14,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:14,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1395919477, now seen corresponding path program 1 times [2023-11-12 02:31:14,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:14,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214164006] [2023-11-12 02:31:14,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:14,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:31:14,861 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:31:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:31:14,891 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:31:14,891 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:31:14,893 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2023-11-12 02:31:14,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2023-11-12 02:31:14,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2023-11-12 02:31:14,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2023-11-12 02:31:14,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2023-11-12 02:31:14,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2023-11-12 02:31:14,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2023-11-12 02:31:14,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2023-11-12 02:31:14,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2023-11-12 02:31:14,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2023-11-12 02:31:14,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2023-11-12 02:31:14,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2023-11-12 02:31:14,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2023-11-12 02:31:14,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2023-11-12 02:31:14,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2023-11-12 02:31:14,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2023-11-12 02:31:14,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2023-11-12 02:31:14,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2023-11-12 02:31:14,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2023-11-12 02:31:14,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2023-11-12 02:31:14,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2023-11-12 02:31:14,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2023-11-12 02:31:14,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:31:14,904 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:14,908 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:31:14,928 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret20 could not be translated [2023-11-12 02:31:14,930 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 02:31:14,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:31:14 BoogieIcfgContainer [2023-11-12 02:31:14,944 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:31:14,945 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:31:14,945 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:31:14,945 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:31:14,946 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:11" (3/4) ... [2023-11-12 02:31:14,948 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:31:14,949 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:31:14,950 INFO L158 Benchmark]: Toolchain (without parser) took 4818.17ms. Allocated memory is still 165.7MB. Free memory was 136.9MB in the beginning and 68.7MB in the end (delta: 68.2MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2023-11-12 02:31:14,950 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 119.5MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:31:14,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.89ms. Allocated memory is still 165.7MB. Free memory was 136.9MB in the beginning and 123.4MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:31:14,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.61ms. Allocated memory is still 165.7MB. Free memory was 123.4MB in the beginning and 122.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:31:14,951 INFO L158 Benchmark]: Boogie Preprocessor took 34.78ms. Allocated memory is still 165.7MB. Free memory was 122.1MB in the beginning and 120.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:31:14,951 INFO L158 Benchmark]: RCFGBuilder took 615.07ms. Allocated memory is still 165.7MB. Free memory was 120.6MB in the beginning and 98.9MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 02:31:14,952 INFO L158 Benchmark]: TraceAbstraction took 3753.77ms. Allocated memory is still 165.7MB. Free memory was 98.3MB in the beginning and 68.7MB in the end (delta: 29.6MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2023-11-12 02:31:14,952 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 165.7MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:31:14,954 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 119.5MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.89ms. Allocated memory is still 165.7MB. Free memory was 136.9MB in the beginning and 123.4MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.61ms. Allocated memory is still 165.7MB. Free memory was 123.4MB in the beginning and 122.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.78ms. Allocated memory is still 165.7MB. Free memory was 122.1MB in the beginning and 120.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 615.07ms. Allocated memory is still 165.7MB. Free memory was 120.6MB in the beginning and 98.9MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3753.77ms. Allocated memory is still 165.7MB. Free memory was 98.3MB in the beginning and 68.7MB in the end (delta: 29.6MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 165.7MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 76. Possible FailurePath: [L226] unsigned int a ; [L227] unsigned int ma = __VERIFIER_nondet_uint(); [L228] signed char ea = __VERIFIER_nondet_char(); [L229] unsigned int b ; [L230] unsigned int mb = __VERIFIER_nondet_uint(); [L231] signed char eb = __VERIFIER_nondet_char(); [L232] unsigned int r_add1 ; [L233] unsigned int r_add2 ; [L234] unsigned int zero ; [L235] int tmp ; [L236] int tmp___0 ; [L237] int __retres14 ; VAL [ea=0, eb=0] [L241] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L241] RET, EXPR base2flt(0, 0) VAL [ea=0, eb=0] [L241] zero = base2flt(0, 0) [L242] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] EXPR m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] m = m & ~ (1U << 24U) [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 114 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 574 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 560 mSDsluCounter, 3544 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2231 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 529 IncrementalHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 1313 mSDtfsCounter, 529 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=6, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 154 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 234 NumberOfCodeBlocks, 234 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 464 SizeOfPredicates, 0 NumberOfNonLiveVariables, 100 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 33/41 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 02:31:14,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-3.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl --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 bd1e20a7a2bac41d4f53b8467ce4dcd444e356387bd290a75ef99d78cf8ebeb3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:31:17,629 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:31:17,773 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-11-12 02:31:17,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:31:17,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:31:17,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:31:17,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:31:17,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:31:17,831 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:31:17,836 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:31:17,837 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:31:17,837 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:31:17,838 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:31:17,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:31:17,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:31:17,841 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:31:17,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:31:17,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:31:17,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:31:17,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:31:17,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:31:17,844 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:31:17,845 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:31:17,845 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:31:17,846 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:31:17,846 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:31:17,846 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:31:17,847 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:31:17,847 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:31:17,848 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:31:17,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:31:17,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:31:17,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:31:17,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:31:17,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:31:17,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:31:17,851 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:31:17,851 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:31:17,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:31:17,853 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:31:17,853 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:31:17,853 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:31:17,853 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:31:17,854 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:31:17,854 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_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd1e20a7a2bac41d4f53b8467ce4dcd444e356387bd290a75ef99d78cf8ebeb3 [2023-11-12 02:31:18,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:31:18,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:31:18,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:31:18,315 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:31:18,316 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:31:18,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/bitvector/soft_float_4-3.c.cil.c [2023-11-12 02:31:21,381 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:31:21,674 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:31:21,675 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/sv-benchmarks/c/bitvector/soft_float_4-3.c.cil.c [2023-11-12 02:31:21,684 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/data/a8884bafb/af2052ca95964c4e8d9d3d5b9fc551a6/FLAG6732d562a [2023-11-12 02:31:21,701 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/data/a8884bafb/af2052ca95964c4e8d9d3d5b9fc551a6 [2023-11-12 02:31:21,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:31:21,705 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:31:21,707 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:31:21,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:31:21,713 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:31:21,714 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:31:21" (1/1) ... [2023-11-12 02:31:21,715 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@589b951d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:21, skipping insertion in model container [2023-11-12 02:31:21,715 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:31:21" (1/1) ... [2023-11-12 02:31:21,750 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:31:21,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:31:21,973 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:31:22,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:31:22,106 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:31:22,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:22 WrapperNode [2023-11-12 02:31:22,107 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:31:22,109 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:31:22,120 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:31:22,121 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:31:22,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:22" (1/1) ... [2023-11-12 02:31:22,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:22" (1/1) ... [2023-11-12 02:31:22,192 INFO L138 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2023-11-12 02:31:22,192 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:31:22,193 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:31:22,193 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:31:22,194 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:31:22,203 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:22" (1/1) ... [2023-11-12 02:31:22,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:22" (1/1) ... [2023-11-12 02:31:22,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:22" (1/1) ... [2023-11-12 02:31:22,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:22" (1/1) ... [2023-11-12 02:31:22,218 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:22" (1/1) ... [2023-11-12 02:31:22,223 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:22" (1/1) ... [2023-11-12 02:31:22,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:22" (1/1) ... [2023-11-12 02:31:22,227 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:22" (1/1) ... [2023-11-12 02:31:22,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:31:22,232 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:31:22,232 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:31:22,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:31:22,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:22" (1/1) ... [2023-11-12 02:31:22,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:31:22,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:22,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:31:22,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:31:22,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:31:22,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:31:22,325 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-11-12 02:31:22,326 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-11-12 02:31:22,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:31:22,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:31:22,326 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2023-11-12 02:31:22,326 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2023-11-12 02:31:22,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 02:31:22,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 02:31:22,455 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:31:22,458 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:31:22,823 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:31:22,831 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:31:22,831 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:31:22,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:22 BoogieIcfgContainer [2023-11-12 02:31:22,834 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:31:22,836 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:31:22,836 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:31:22,840 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:31:22,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:31:21" (1/3) ... [2023-11-12 02:31:22,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73db4b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:31:22, skipping insertion in model container [2023-11-12 02:31:22,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:22" (2/3) ... [2023-11-12 02:31:22,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73db4b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:31:22, skipping insertion in model container [2023-11-12 02:31:22,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:22" (3/3) ... [2023-11-12 02:31:22,843 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_4-3.c.cil.c [2023-11-12 02:31:22,860 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:31:22,860 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-12 02:31:22,914 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:31:22,921 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;@3e0a91f7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:31:22,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-12 02:31:22,926 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 62 states have (on average 1.6451612903225807) internal successors, (102), 84 states have internal predecessors, (102), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:31:22,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 02:31:22,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:22,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:22,935 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:22,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:22,942 INFO L85 PathProgramCache]: Analyzing trace with hash -74325512, now seen corresponding path program 1 times [2023-11-12 02:31:22,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:31:22,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1908813651] [2023-11-12 02:31:22,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:22,956 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:31:22,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:31:22,966 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:31:22,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 02:31:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:23,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:31:23,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:31:23,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:23,113 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:31:23,114 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:31:23,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1908813651] [2023-11-12 02:31:23,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1908813651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:23,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:23,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:31:23,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730310149] [2023-11-12 02:31:23,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:23,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:31:23,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:31:23,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:31:23,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:31:23,170 INFO L87 Difference]: Start difference. First operand has 97 states, 62 states have (on average 1.6451612903225807) internal successors, (102), 84 states have internal predecessors, (102), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-12 02:31:23,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:23,238 INFO L93 Difference]: Finished difference Result 181 states and 244 transitions. [2023-11-12 02:31:23,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:31:23,241 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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 9 [2023-11-12 02:31:23,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:23,251 INFO L225 Difference]: With dead ends: 181 [2023-11-12 02:31:23,252 INFO L226 Difference]: Without dead ends: 77 [2023-11-12 02:31:23,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:31:23,264 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:23,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:31:23,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-12 02:31:23,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-12 02:31:23,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 53 states have (on average 1.4528301886792452) internal successors, (77), 66 states have internal predecessors, (77), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:31:23,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2023-11-12 02:31:23,331 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 9 [2023-11-12 02:31:23,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:23,331 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2023-11-12 02:31:23,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-12 02:31:23,332 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2023-11-12 02:31:23,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 02:31:23,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:23,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:23,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:31:23,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:31:23,546 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:23,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:23,548 INFO L85 PathProgramCache]: Analyzing trace with hash -75266778, now seen corresponding path program 1 times [2023-11-12 02:31:23,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:31:23,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815622369] [2023-11-12 02:31:23,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:23,550 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:31:23,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:31:23,551 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:31:23,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 02:31:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:23,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:31:23,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:31:23,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:23,655 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:31:23,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:31:23,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815622369] [2023-11-12 02:31:23,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [815622369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:23,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:23,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:31:23,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714811803] [2023-11-12 02:31:23,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:23,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:31:23,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:31:23,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:31:23,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:31:23,659 INFO L87 Difference]: Start difference. First operand 77 states and 92 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 02:31:23,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:23,755 INFO L93 Difference]: Finished difference Result 159 states and 190 transitions. [2023-11-12 02:31:23,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:31:23,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 9 [2023-11-12 02:31:23,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:23,762 INFO L225 Difference]: With dead ends: 159 [2023-11-12 02:31:23,763 INFO L226 Difference]: Without dead ends: 85 [2023-11-12 02:31:23,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:31:23,768 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 9 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:23,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 254 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:31:23,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-12 02:31:23,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2023-11-12 02:31:23,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 57 states have (on average 1.4210526315789473) internal successors, (81), 70 states have internal predecessors, (81), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:31:23,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 96 transitions. [2023-11-12 02:31:23,791 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 96 transitions. Word has length 9 [2023-11-12 02:31:23,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:23,792 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 96 transitions. [2023-11-12 02:31:23,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 02:31:23,793 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 96 transitions. [2023-11-12 02:31:23,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 02:31:23,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:23,794 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:23,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:31:24,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:31:24,005 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:24,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:24,006 INFO L85 PathProgramCache]: Analyzing trace with hash -221032394, now seen corresponding path program 1 times [2023-11-12 02:31:24,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:31:24,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575551056] [2023-11-12 02:31:24,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:24,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:31:24,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:31:24,030 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:31:24,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-12 02:31:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:24,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:31:24,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:31:24,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 02:31:24,105 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:31:24,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:31:24,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575551056] [2023-11-12 02:31:24,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575551056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:24,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:24,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:31:24,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383273983] [2023-11-12 02:31:24,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:24,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:31:24,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:31:24,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:31:24,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:31:24,109 INFO L87 Difference]: Start difference. First operand 82 states and 96 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, (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) [2023-11-12 02:31:24,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:24,161 INFO L93 Difference]: Finished difference Result 85 states and 100 transitions. [2023-11-12 02:31:24,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:31:24,163 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, (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 16 [2023-11-12 02:31:24,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:24,165 INFO L225 Difference]: With dead ends: 85 [2023-11-12 02:31:24,166 INFO L226 Difference]: Without dead ends: 84 [2023-11-12 02:31:24,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:31:24,171 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 3 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:24,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 167 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:31:24,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-12 02:31:24,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2023-11-12 02:31:24,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 57 states have (on average 1.4035087719298245) internal successors, (80), 69 states have internal predecessors, (80), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:31:24,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 95 transitions. [2023-11-12 02:31:24,190 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 95 transitions. Word has length 16 [2023-11-12 02:31:24,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:24,190 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 95 transitions. [2023-11-12 02:31:24,191 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, (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) [2023-11-12 02:31:24,191 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 95 transitions. [2023-11-12 02:31:24,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 02:31:24,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:24,192 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:24,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:31:24,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:31:24,400 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:24,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:24,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1071283234, now seen corresponding path program 1 times [2023-11-12 02:31:24,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:31:24,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828228313] [2023-11-12 02:31:24,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:24,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:31:24,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:31:24,408 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:31:24,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-12 02:31:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:24,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:31:24,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:31:24,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 02:31:24,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:31:24,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:31:24,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828228313] [2023-11-12 02:31:24,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828228313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:24,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:24,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:31:24,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504071476] [2023-11-12 02:31:24,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:24,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:31:24,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:31:24,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:31:24,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:31:24,505 INFO L87 Difference]: Start difference. First operand 81 states and 95 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-12 02:31:24,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:24,549 INFO L93 Difference]: Finished difference Result 84 states and 99 transitions. [2023-11-12 02:31:24,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:31:24,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 18 [2023-11-12 02:31:24,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:24,551 INFO L225 Difference]: With dead ends: 84 [2023-11-12 02:31:24,552 INFO L226 Difference]: Without dead ends: 83 [2023-11-12 02:31:24,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:31:24,554 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 2 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:24,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 166 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:31:24,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-12 02:31:24,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2023-11-12 02:31:24,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 68 states have internal predecessors, (79), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:31:24,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 94 transitions. [2023-11-12 02:31:24,563 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 94 transitions. Word has length 18 [2023-11-12 02:31:24,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:24,564 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 94 transitions. [2023-11-12 02:31:24,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-12 02:31:24,564 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 94 transitions. [2023-11-12 02:31:24,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 02:31:24,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:24,566 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:24,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:31:24,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:31:24,777 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:24,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:24,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1071215708, now seen corresponding path program 1 times [2023-11-12 02:31:24,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:31:24,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363208037] [2023-11-12 02:31:24,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:24,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:31:24,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:31:24,792 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:31:24,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-12 02:31:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:24,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:31:24,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:31:24,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:24,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:31:24,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:31:24,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363208037] [2023-11-12 02:31:24,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363208037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:24,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:24,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:31:24,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114078325] [2023-11-12 02:31:24,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:24,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:31:24,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:31:24,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:31:24,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:31:24,926 INFO L87 Difference]: Start difference. First operand 80 states and 94 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-12 02:31:25,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:25,420 INFO L93 Difference]: Finished difference Result 102 states and 120 transitions. [2023-11-12 02:31:25,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:31:25,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 18 [2023-11-12 02:31:25,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:25,423 INFO L225 Difference]: With dead ends: 102 [2023-11-12 02:31:25,423 INFO L226 Difference]: Without dead ends: 99 [2023-11-12 02:31:25,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:31:25,425 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 69 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:25,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 190 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:31:25,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-12 02:31:25,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2023-11-12 02:31:25,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 64 states have (on average 1.359375) internal successors, (87), 75 states have internal predecessors, (87), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:31:25,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 102 transitions. [2023-11-12 02:31:25,437 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 102 transitions. Word has length 18 [2023-11-12 02:31:25,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:25,438 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 102 transitions. [2023-11-12 02:31:25,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-12 02:31:25,438 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 102 transitions. [2023-11-12 02:31:25,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 02:31:25,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:25,440 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] [2023-11-12 02:31:25,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-12 02:31:25,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:31:25,651 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 02:31:25,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:25,652 INFO L85 PathProgramCache]: Analyzing trace with hash -980045403, now seen corresponding path program 1 times [2023-11-12 02:31:25,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:31:25,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63364832] [2023-11-12 02:31:25,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:25,652 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:31:25,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:31:25,654 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:31:25,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-12 02:31:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:31:25,690 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:31:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:31:25,727 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-12 02:31:25,727 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:31:25,728 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2023-11-12 02:31:25,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2023-11-12 02:31:25,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2023-11-12 02:31:25,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2023-11-12 02:31:25,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2023-11-12 02:31:25,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2023-11-12 02:31:25,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2023-11-12 02:31:25,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2023-11-12 02:31:25,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2023-11-12 02:31:25,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2023-11-12 02:31:25,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2023-11-12 02:31:25,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2023-11-12 02:31:25,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2023-11-12 02:31:25,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2023-11-12 02:31:25,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2023-11-12 02:31:25,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2023-11-12 02:31:25,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2023-11-12 02:31:25,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2023-11-12 02:31:25,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2023-11-12 02:31:25,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2023-11-12 02:31:25,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2023-11-12 02:31:25,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2023-11-12 02:31:25,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:31:25,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:31:25,950 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-12 02:31:25,954 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:31:25,976 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated [2023-11-12 02:31:25,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:31:25 BoogieIcfgContainer [2023-11-12 02:31:25,990 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:31:25,991 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:31:25,991 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:31:25,992 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:31:25,992 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:22" (3/4) ... [2023-11-12 02:31:25,993 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-12 02:31:26,001 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated [2023-11-12 02:31:26,053 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:31:26,053 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:31:26,053 INFO L158 Benchmark]: Toolchain (without parser) took 4348.14ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 51.1MB in the beginning and 41.2MB in the end (delta: 9.9MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2023-11-12 02:31:26,054 INFO L158 Benchmark]: CDTParser took 1.39ms. Allocated memory is still 75.5MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:31:26,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.94ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 51.0MB in the beginning and 75.3MB in the end (delta: -24.3MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2023-11-12 02:31:26,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.00ms. Allocated memory is still 96.5MB. Free memory was 75.3MB in the beginning and 73.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:31:26,056 INFO L158 Benchmark]: Boogie Preprocessor took 38.30ms. Allocated memory is still 96.5MB. Free memory was 73.6MB in the beginning and 71.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:31:26,056 INFO L158 Benchmark]: RCFGBuilder took 601.78ms. Allocated memory is still 96.5MB. Free memory was 71.9MB in the beginning and 54.7MB in the end (delta: 17.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:31:26,056 INFO L158 Benchmark]: TraceAbstraction took 3154.21ms. Allocated memory is still 96.5MB. Free memory was 53.9MB in the beginning and 43.3MB in the end (delta: 10.6MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2023-11-12 02:31:26,057 INFO L158 Benchmark]: Witness Printer took 62.05ms. Allocated memory is still 96.5MB. Free memory was 43.3MB in the beginning and 41.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:31:26,060 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39ms. Allocated memory is still 75.5MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.94ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 51.0MB in the beginning and 75.3MB in the end (delta: -24.3MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.00ms. Allocated memory is still 96.5MB. Free memory was 75.3MB in the beginning and 73.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.30ms. Allocated memory is still 96.5MB. Free memory was 73.6MB in the beginning and 71.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 601.78ms. Allocated memory is still 96.5MB. Free memory was 71.9MB in the beginning and 54.7MB in the end (delta: 17.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3154.21ms. Allocated memory is still 96.5MB. Free memory was 53.9MB in the beginning and 43.3MB in the end (delta: 10.6MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Witness Printer took 62.05ms. Allocated memory is still 96.5MB. Free memory was 43.3MB in the beginning and 41.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 77]: integer overflow possible integer overflow possible We found a FailurePath: [L226] unsigned int a ; [L227] unsigned int ma = __VERIFIER_nondet_uint(); [L228] signed char ea = __VERIFIER_nondet_char(); [L229] unsigned int b ; [L230] unsigned int mb = __VERIFIER_nondet_uint(); [L231] signed char eb = __VERIFIER_nondet_char(); [L232] unsigned int r_add1 ; [L233] unsigned int r_add2 ; [L234] unsigned int zero ; [L235] int tmp ; [L236] int tmp___0 ; [L237] int __retres14 ; [L241] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L241] RET, EXPR base2flt(0, 0) [L241] zero = base2flt(0, 0) [L242] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 97 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 882 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 431 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 451 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 21 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 65 ConstructedInterpolants, 8 QuantifiedInterpolants, 110 SizeOfPredicates, 2 NumberOfNonLiveVariables, 160 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-12 02:31:26,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbcf4d8-858e-466b-9642-1fdbf64e45a2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)