./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx --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 53908028cfc42f68f62c10378662b57f64149241c563947e258b97b254c402b4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:16:51,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:16:51,261 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-21 22:16:51,268 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:16:51,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:16:51,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:16:51,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:16:51,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:16:51,300 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:16:51,301 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:16:51,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:16:51,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:16:51,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:16:51,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:16:51,304 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:16:51,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:16:51,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:16:51,306 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:16:51,307 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:16:51,308 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:16:51,308 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:16:51,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:16:51,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:16:51,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:16:51,311 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:16:51,311 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:16:51,312 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:16:51,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:16:51,313 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:16:51,313 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:16:51,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:16:51,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:16:51,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:16:51,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:16:51,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:16:51,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:16:51,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:16:51,317 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:16:51,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:16:51,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:16:51,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:16:51,320 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:16:51,320 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:16:51,321 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:16:51,321 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_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53908028cfc42f68f62c10378662b57f64149241c563947e258b97b254c402b4 [2023-11-21 22:16:51,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:16:51,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:16:51,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:16:51,679 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:16:51,680 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:16:51,682 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound20.c [2023-11-21 22:16:54,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:16:55,157 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:16:55,157 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound20.c [2023-11-21 22:16:55,165 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/data/48605a8b3/df7510c6fbaa4564b21bb08f9b241500/FLAG2f0f48e65 [2023-11-21 22:16:55,178 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/data/48605a8b3/df7510c6fbaa4564b21bb08f9b241500 [2023-11-21 22:16:55,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:16:55,182 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:16:55,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:16:55,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:16:55,191 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:16:55,192 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:16:55" (1/1) ... [2023-11-21 22:16:55,193 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f23bb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:55, skipping insertion in model container [2023-11-21 22:16:55,193 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:16:55" (1/1) ... [2023-11-21 22:16:55,216 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:16:55,399 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:16:55,412 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:16:55,436 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:16:55,449 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:16:55,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:55 WrapperNode [2023-11-21 22:16:55,450 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:16:55,451 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:16:55,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:16:55,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:16:55,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:55" (1/1) ... [2023-11-21 22:16:55,465 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:55" (1/1) ... [2023-11-21 22:16:55,496 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 106 [2023-11-21 22:16:55,496 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:16:55,497 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:16:55,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:16:55,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:16:55,510 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:55" (1/1) ... [2023-11-21 22:16:55,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:55" (1/1) ... [2023-11-21 22:16:55,512 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:55" (1/1) ... [2023-11-21 22:16:55,524 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:16:55,524 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:55" (1/1) ... [2023-11-21 22:16:55,524 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:55" (1/1) ... [2023-11-21 22:16:55,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:55" (1/1) ... [2023-11-21 22:16:55,534 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:55" (1/1) ... [2023-11-21 22:16:55,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:55" (1/1) ... [2023-11-21 22:16:55,538 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:55" (1/1) ... [2023-11-21 22:16:55,541 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:16:55,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:16:55,542 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:16:55,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:16:55,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:55" (1/1) ... [2023-11-21 22:16:55,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:16:55,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:55,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:55,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:16:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:16:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:16:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:16:55,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:16:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 22:16:55,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 22:16:55,732 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:16:55,735 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:16:56,237 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:16:56,302 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:16:56,303 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:16:56,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:56 BoogieIcfgContainer [2023-11-21 22:16:56,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:16:56,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:16:56,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:16:56,312 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:16:56,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:16:55" (1/3) ... [2023-11-21 22:16:56,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dacf77c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:16:56, skipping insertion in model container [2023-11-21 22:16:56,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:55" (2/3) ... [2023-11-21 22:16:56,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dacf77c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:16:56, skipping insertion in model container [2023-11-21 22:16:56,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:56" (3/3) ... [2023-11-21 22:16:56,315 INFO L112 eAbstractionObserver]: Analyzing ICFG freire2_valuebound20.c [2023-11-21 22:16:56,351 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:16:56,351 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2023-11-21 22:16:56,402 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:16:56,409 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;@573230a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:16:56,409 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-11-21 22:16:56,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 65 states have (on average 1.9538461538461538) internal successors, (127), 125 states have internal predecessors, (127), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 22:16:56,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:16:56,418 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:56,419 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:16:56,419 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:16:56,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:56,425 INFO L85 PathProgramCache]: Analyzing trace with hash 214880, now seen corresponding path program 1 times [2023-11-21 22:16:56,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:56,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447900879] [2023-11-21 22:16:56,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:56,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:56,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:16:56,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:16:56,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447900879] [2023-11-21 22:16:56,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447900879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:16:56,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:16:56,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:16:56,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294620416] [2023-11-21 22:16:56,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:16:56,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:16:56,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:16:56,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:16:56,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:16:56,662 INFO L87 Difference]: Start difference. First operand has 133 states, 65 states have (on average 1.9538461538461538) internal successors, (127), 125 states have internal predecessors, (127), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:16:56,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:16:56,895 INFO L93 Difference]: Finished difference Result 184 states and 203 transitions. [2023-11-21 22:16:56,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:16:56,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-21 22:16:56,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:16:56,909 INFO L225 Difference]: With dead ends: 184 [2023-11-21 22:16:56,910 INFO L226 Difference]: Without dead ends: 104 [2023-11-21 22:16:56,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:16:56,917 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 95 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:16:56,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 21 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:16:56,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-21 22:16:56,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2023-11-21 22:16:56,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 64 states have (on average 1.53125) internal successors, (98), 97 states have internal predecessors, (98), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:16:56,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 108 transitions. [2023-11-21 22:16:56,965 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 108 transitions. Word has length 3 [2023-11-21 22:16:56,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:16:56,965 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 108 transitions. [2023-11-21 22:16:56,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:16:56,966 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 108 transitions. [2023-11-21 22:16:56,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:16:56,966 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:56,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:16:56,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:16:56,967 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:16:56,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:56,968 INFO L85 PathProgramCache]: Analyzing trace with hash 6661332, now seen corresponding path program 1 times [2023-11-21 22:16:56,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:56,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262436749] [2023-11-21 22:16:56,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:56,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:57,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:16:57,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:16:57,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262436749] [2023-11-21 22:16:57,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262436749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:16:57,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:16:57,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:16:57,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299249223] [2023-11-21 22:16:57,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:16:57,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:16:57,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:16:57,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:16:57,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:16:57,042 INFO L87 Difference]: Start difference. First operand 104 states and 108 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:16:57,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:16:57,322 INFO L93 Difference]: Finished difference Result 205 states and 214 transitions. [2023-11-21 22:16:57,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:16:57,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-21 22:16:57,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:16:57,328 INFO L225 Difference]: With dead ends: 205 [2023-11-21 22:16:57,329 INFO L226 Difference]: Without dead ends: 180 [2023-11-21 22:16:57,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:16:57,331 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 73 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:16:57,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 46 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:16:57,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-21 22:16:57,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 166. [2023-11-21 22:16:57,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 122 states have (on average 1.3934426229508197) internal successors, (170), 155 states have internal predecessors, (170), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 22:16:57,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 188 transitions. [2023-11-21 22:16:57,377 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 188 transitions. Word has length 4 [2023-11-21 22:16:57,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:16:57,377 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 188 transitions. [2023-11-21 22:16:57,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:16:57,378 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 188 transitions. [2023-11-21 22:16:57,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 22:16:57,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:57,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:16:57,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:16:57,379 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:16:57,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:57,379 INFO L85 PathProgramCache]: Analyzing trace with hash 2106574486, now seen corresponding path program 1 times [2023-11-21 22:16:57,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:57,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942007360] [2023-11-21 22:16:57,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:57,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:57,403 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:16:57,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1835548497] [2023-11-21 22:16:57,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:57,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:16:57,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:57,406 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:16:57,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:16:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:57,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:16:57,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:16:57,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:16:57,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:16:57,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:16:57,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942007360] [2023-11-21 22:16:57,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:16:57,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835548497] [2023-11-21 22:16:57,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835548497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:16:57,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:16:57,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:16:57,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983419946] [2023-11-21 22:16:57,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:16:57,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:16:57,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:16:57,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:16:57,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:16:57,499 INFO L87 Difference]: Start difference. First operand 166 states and 188 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:16:57,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:16:57,726 INFO L93 Difference]: Finished difference Result 180 states and 188 transitions. [2023-11-21 22:16:57,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:16:57,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-21 22:16:57,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:16:57,738 INFO L225 Difference]: With dead ends: 180 [2023-11-21 22:16:57,738 INFO L226 Difference]: Without dead ends: 174 [2023-11-21 22:16:57,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:16:57,744 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 61 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:16:57,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 56 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:16:57,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-11-21 22:16:57,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 166. [2023-11-21 22:16:57,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 122 states have (on average 1.3442622950819672) internal successors, (164), 155 states have internal predecessors, (164), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 22:16:57,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 182 transitions. [2023-11-21 22:16:57,770 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 182 transitions. Word has length 6 [2023-11-21 22:16:57,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:16:57,771 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 182 transitions. [2023-11-21 22:16:57,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:16:57,771 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 182 transitions. [2023-11-21 22:16:57,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 22:16:57,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:57,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:16:57,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:57,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:16:57,993 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:16:57,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:57,994 INFO L85 PathProgramCache]: Analyzing trace with hash 879299684, now seen corresponding path program 1 times [2023-11-21 22:16:57,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:57,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077597922] [2023-11-21 22:16:57,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:57,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:58,018 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:16:58,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2109484135] [2023-11-21 22:16:58,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:58,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:16:58,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:58,024 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:16:58,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:16:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:58,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:16:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:58,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:16:58,115 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:16:58,116 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 60 remaining) [2023-11-21 22:16:58,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 60 remaining) [2023-11-21 22:16:58,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 60 remaining) [2023-11-21 22:16:58,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 60 remaining) [2023-11-21 22:16:58,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 60 remaining) [2023-11-21 22:16:58,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 60 remaining) [2023-11-21 22:16:58,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 60 remaining) [2023-11-21 22:16:58,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 60 remaining) [2023-11-21 22:16:58,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 60 remaining) [2023-11-21 22:16:58,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 60 remaining) [2023-11-21 22:16:58,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 60 remaining) [2023-11-21 22:16:58,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 60 remaining) [2023-11-21 22:16:58,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 60 remaining) [2023-11-21 22:16:58,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 60 remaining) [2023-11-21 22:16:58,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 60 remaining) [2023-11-21 22:16:58,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 60 remaining) [2023-11-21 22:16:58,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 60 remaining) [2023-11-21 22:16:58,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 60 remaining) [2023-11-21 22:16:58,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 60 remaining) [2023-11-21 22:16:58,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 60 remaining) [2023-11-21 22:16:58,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 60 remaining) [2023-11-21 22:16:58,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 60 remaining) [2023-11-21 22:16:58,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 60 remaining) [2023-11-21 22:16:58,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 60 remaining) [2023-11-21 22:16:58,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 60 remaining) [2023-11-21 22:16:58,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 60 remaining) [2023-11-21 22:16:58,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 60 remaining) [2023-11-21 22:16:58,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 60 remaining) [2023-11-21 22:16:58,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 60 remaining) [2023-11-21 22:16:58,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 60 remaining) [2023-11-21 22:16:58,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 60 remaining) [2023-11-21 22:16:58,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 60 remaining) [2023-11-21 22:16:58,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 60 remaining) [2023-11-21 22:16:58,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 60 remaining) [2023-11-21 22:16:58,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 60 remaining) [2023-11-21 22:16:58,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 60 remaining) [2023-11-21 22:16:58,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 60 remaining) [2023-11-21 22:16:58,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 60 remaining) [2023-11-21 22:16:58,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 60 remaining) [2023-11-21 22:16:58,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 60 remaining) [2023-11-21 22:16:58,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 60 remaining) [2023-11-21 22:16:58,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 60 remaining) [2023-11-21 22:16:58,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 60 remaining) [2023-11-21 22:16:58,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 60 remaining) [2023-11-21 22:16:58,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 60 remaining) [2023-11-21 22:16:58,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 60 remaining) [2023-11-21 22:16:58,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 60 remaining) [2023-11-21 22:16:58,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 60 remaining) [2023-11-21 22:16:58,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 60 remaining) [2023-11-21 22:16:58,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 60 remaining) [2023-11-21 22:16:58,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 60 remaining) [2023-11-21 22:16:58,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 60 remaining) [2023-11-21 22:16:58,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 60 remaining) [2023-11-21 22:16:58,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 60 remaining) [2023-11-21 22:16:58,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 60 remaining) [2023-11-21 22:16:58,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 60 remaining) [2023-11-21 22:16:58,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 60 remaining) [2023-11-21 22:16:58,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 60 remaining) [2023-11-21 22:16:58,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 60 remaining) [2023-11-21 22:16:58,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 60 remaining) [2023-11-21 22:16:58,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:58,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:16:58,369 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-21 22:16:58,374 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:16:58,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:16:58 BoogieIcfgContainer [2023-11-21 22:16:58,399 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:16:58,400 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:16:58,400 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:16:58,401 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:16:58,401 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:56" (3/4) ... [2023-11-21 22:16:58,405 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:16:58,406 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:16:58,408 INFO L158 Benchmark]: Toolchain (without parser) took 3224.72ms. Allocated memory was 121.6MB in the beginning and 167.8MB in the end (delta: 46.1MB). Free memory was 77.3MB in the beginning and 121.8MB in the end (delta: -44.4MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2023-11-21 22:16:58,408 INFO L158 Benchmark]: CDTParser took 1.39ms. Allocated memory is still 121.6MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:16:58,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.50ms. Allocated memory is still 121.6MB. Free memory was 77.3MB in the beginning and 66.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:16:58,414 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.67ms. Allocated memory is still 121.6MB. Free memory was 66.3MB in the beginning and 64.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:16:58,417 INFO L158 Benchmark]: Boogie Preprocessor took 43.72ms. Allocated memory is still 121.6MB. Free memory was 64.2MB in the beginning and 62.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:16:58,417 INFO L158 Benchmark]: RCFGBuilder took 763.01ms. Allocated memory was 121.6MB in the beginning and 167.8MB in the end (delta: 46.1MB). Free memory was 62.3MB in the beginning and 117.4MB in the end (delta: -55.2MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2023-11-21 22:16:58,418 INFO L158 Benchmark]: TraceAbstraction took 2091.79ms. Allocated memory is still 167.8MB. Free memory was 116.5MB in the beginning and 121.8MB in the end (delta: -5.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:16:58,419 INFO L158 Benchmark]: Witness Printer took 5.98ms. Allocated memory is still 167.8MB. Free memory is still 121.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:16:58,422 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 121.6MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.50ms. Allocated memory is still 121.6MB. Free memory was 77.3MB in the beginning and 66.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.67ms. Allocated memory is still 121.6MB. Free memory was 66.3MB in the beginning and 64.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.72ms. Allocated memory is still 121.6MB. Free memory was 64.2MB in the beginning and 62.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 763.01ms. Allocated memory was 121.6MB in the beginning and 167.8MB in the end (delta: 46.1MB). Free memory was 62.3MB in the beginning and 117.4MB in the end (delta: -55.2MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2091.79ms. Allocated memory is still 167.8MB. Free memory was 116.5MB in the beginning and 121.8MB in the end (delta: -5.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.98ms. Allocated memory is still 167.8MB. Free memory is still 121.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of to_int at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 28. Possible FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L28] CALL assume_abort_if_not(a>=0 && a<=20) [L14] COND FALSE !(!cond) [L28] RET assume_abort_if_not(a>=0 && a<=20) [L29] x = a [L30] s = 3.25 [L31] r = 1 VAL [a=2, r=1, s=13/4, x=2] [L33] COND TRUE 1 VAL [a=2, r=1, s=13/4, x=2] [L34] EXPR 12*r VAL [a=2, r=1, s=13/4, x=2] [L34] EXPR 12*r*r VAL [a=2, r=1, s=13/4, x=2] [L34] (int)(4*s) - 12*r*r VAL [a=2, r=1, s=13/4, x=2] - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: 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: 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: 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: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: 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 2 procedures, 133 locations, 60 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 244 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 229 mSDsluCounter, 123 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 427 IncrementalHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 91 mSDtfsCounter, 427 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=2, InterpolantAutomatonStates: 9, 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, 3 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 [2023-11-21 22:16:58,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/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_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx --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 53908028cfc42f68f62c10378662b57f64149241c563947e258b97b254c402b4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:17:01,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:17:01,369 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-11-21 22:17:01,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:17:01,378 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:17:01,427 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:17:01,428 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:17:01,428 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:17:01,430 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:17:01,435 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:17:01,435 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:17:01,436 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:17:01,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:17:01,438 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:17:01,439 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:17:01,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:17:01,440 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:17:01,441 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:17:01,441 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:17:01,442 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:17:01,443 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:17:01,443 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:17:01,444 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:17:01,444 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:17:01,445 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:17:01,445 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:17:01,446 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:17:01,446 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:17:01,446 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:17:01,447 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:17:01,448 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:17:01,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:17:01,449 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:17:01,449 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:17:01,449 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:17:01,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:17:01,451 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:17:01,451 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:17:01,451 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:17:01,451 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:17:01,451 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:17:01,452 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:17:01,452 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:17:01,452 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:17:01,453 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:17:01,453 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:17:01,453 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:17:01,453 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_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53908028cfc42f68f62c10378662b57f64149241c563947e258b97b254c402b4 [2023-11-21 22:17:01,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:17:01,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:17:01,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:17:01,946 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:17:01,947 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:17:01,948 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound20.c [2023-11-21 22:17:05,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:17:05,640 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:17:05,640 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound20.c [2023-11-21 22:17:05,648 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/data/4a36c0228/0725fa011f48423298464e341511fc49/FLAG018c60aec [2023-11-21 22:17:05,662 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/data/4a36c0228/0725fa011f48423298464e341511fc49 [2023-11-21 22:17:05,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:17:05,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:17:05,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:17:05,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:17:05,677 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:17:05,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:17:05" (1/1) ... [2023-11-21 22:17:05,679 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13a7b781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:05, skipping insertion in model container [2023-11-21 22:17:05,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:17:05" (1/1) ... [2023-11-21 22:17:05,709 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:17:05,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:17:05,936 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:17:05,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:17:06,014 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:17:06,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:06 WrapperNode [2023-11-21 22:17:06,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:17:06,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:17:06,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:17:06,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:17:06,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:06" (1/1) ... [2023-11-21 22:17:06,052 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:06" (1/1) ... [2023-11-21 22:17:06,104 INFO L138 Inliner]: procedures = 15, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2023-11-21 22:17:06,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:17:06,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:17:06,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:17:06,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:17:06,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:06" (1/1) ... [2023-11-21 22:17:06,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:06" (1/1) ... [2023-11-21 22:17:06,121 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:06" (1/1) ... [2023-11-21 22:17:06,136 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:17:06,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:06" (1/1) ... [2023-11-21 22:17:06,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:06" (1/1) ... [2023-11-21 22:17:06,162 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:06" (1/1) ... [2023-11-21 22:17:06,172 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:06" (1/1) ... [2023-11-21 22:17:06,180 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:06" (1/1) ... [2023-11-21 22:17:06,186 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:06" (1/1) ... [2023-11-21 22:17:06,190 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:17:06,195 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:17:06,195 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:17:06,195 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:17:06,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:06" (1/1) ... [2023-11-21 22:17:06,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:17:06,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:17:06,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:17:06,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:17:06,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:17:06,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:17:06,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:17:06,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:17:06,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 22:17:06,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 22:17:06,335 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:17:06,338 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:17:32,790 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:17:32,874 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:17:32,880 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:17:32,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:17:32 BoogieIcfgContainer [2023-11-21 22:17:32,883 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:17:32,886 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:17:32,886 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:17:32,890 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:17:32,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:17:05" (1/3) ... [2023-11-21 22:17:32,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23bf1d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:17:32, skipping insertion in model container [2023-11-21 22:17:32,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:06" (2/3) ... [2023-11-21 22:17:32,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23bf1d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:17:32, skipping insertion in model container [2023-11-21 22:17:32,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:17:32" (3/3) ... [2023-11-21 22:17:32,894 INFO L112 eAbstractionObserver]: Analyzing ICFG freire2_valuebound20.c [2023-11-21 22:17:32,910 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:17:32,911 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2023-11-21 22:17:32,960 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:17:32,966 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;@411722e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:17:32,966 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-11-21 22:17:32,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 65 states have (on average 1.9538461538461538) internal successors, (127), 125 states have internal predecessors, (127), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 22:17:32,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:17:32,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:17:32,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:17:32,976 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-21 22:17:32,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:32,982 INFO L85 PathProgramCache]: Analyzing trace with hash 214880, now seen corresponding path program 1 times [2023-11-21 22:17:32,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:17:32,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452229477] [2023-11-21 22:17:32,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:32,993 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 [2023-11-21 22:17:32,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:17:33,033 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:17:33,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160ebe4e-2db4-4fb1-ad08-bc0f8153c5b5/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:17:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:33,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:17:33,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:17:33,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:17:33,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:17:33,146 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:17:33,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1452229477] [2023-11-21 22:17:33,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1452229477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:33,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:33,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:17:33,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138724675] [2023-11-21 22:17:33,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:33,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:17:33,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:17:33,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:17:33,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:17:33,190 INFO L87 Difference]: Start difference. First operand has 133 states, 65 states have (on average 1.9538461538461538) internal successors, (127), 125 states have internal predecessors, (127), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:17:38,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 22:17:40,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 22:17:42,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 22:17:49,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 22:17:53,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 22:17:55,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 22:17:57,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 22:17:59,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []