/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver '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' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032c.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-df9f019-m [2024-11-05 20:57:24,923 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 20:57:24,977 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-05 20:57:24,979 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 20:57:24,980 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 20:57:25,000 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 20:57:25,001 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 20:57:25,002 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 20:57:25,002 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 20:57:25,003 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 20:57:25,003 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 20:57:25,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 20:57:25,004 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 20:57:25,004 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 20:57:25,004 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 20:57:25,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 20:57:25,005 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 20:57:25,005 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 20:57:25,007 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 20:57:25,008 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 20:57:25,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 20:57:25,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 20:57:25,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 20:57:25,009 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 20:57:25,009 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 20:57:25,009 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 20:57:25,009 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 20:57:25,009 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 20:57:25,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 20:57:25,010 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 20:57:25,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 20:57:25,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 20:57:25,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 20:57:25,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 20:57:25,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 20:57:25,011 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 20:57:25,011 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 20:57:25,011 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 20:57:25,011 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 20:57:25,011 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 20:57:25,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 20:57:25,014 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 20:57:25,014 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 20:57:25,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 20:57:25,014 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:57:25,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 20:57:25,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 20:57:25,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 20:57:25,215 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 20:57:25,215 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 20:57:25,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032c.c [2024-11-05 20:57:26,398 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 20:57:26,572 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 20:57:26,573 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032c.c [2024-11-05 20:57:26,580 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/834182d2d/6ba55937d50947949a10415b0a93f907/FLAG8f1678f11 [2024-11-05 20:57:26,980 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/834182d2d/6ba55937d50947949a10415b0a93f907 [2024-11-05 20:57:26,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 20:57:26,983 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 20:57:26,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 20:57:26,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 20:57:26,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 20:57:26,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:57:26" (1/1) ... [2024-11-05 20:57:26,991 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@783a5888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:26, skipping insertion in model container [2024-11-05 20:57:26,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:57:26" (1/1) ... [2024-11-05 20:57:27,013 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 20:57:27,141 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032c.c[2355,2368] [2024-11-05 20:57:27,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 20:57:27,156 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 20:57:27,177 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032c.c[2355,2368] [2024-11-05 20:57:27,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 20:57:27,193 INFO L204 MainTranslator]: Completed translation [2024-11-05 20:57:27,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:27 WrapperNode [2024-11-05 20:57:27,193 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 20:57:27,194 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 20:57:27,194 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 20:57:27,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 20:57:27,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:27" (1/1) ... [2024-11-05 20:57:27,207 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:27" (1/1) ... [2024-11-05 20:57:27,222 INFO L138 Inliner]: procedures = 19, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 112 [2024-11-05 20:57:27,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 20:57:27,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 20:57:27,223 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 20:57:27,223 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 20:57:27,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:27" (1/1) ... [2024-11-05 20:57:27,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:27" (1/1) ... [2024-11-05 20:57:27,233 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:27" (1/1) ... [2024-11-05 20:57:27,243 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 3, 3, 3]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 2]. [2024-11-05 20:57:27,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:27" (1/1) ... [2024-11-05 20:57:27,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:27" (1/1) ... [2024-11-05 20:57:27,254 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:27" (1/1) ... [2024-11-05 20:57:27,256 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:27" (1/1) ... [2024-11-05 20:57:27,257 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:27" (1/1) ... [2024-11-05 20:57:27,258 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:27" (1/1) ... [2024-11-05 20:57:27,261 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 20:57:27,261 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 20:57:27,261 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 20:57:27,261 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 20:57:27,262 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:27" (1/1) ... [2024-11-05 20:57:27,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 20:57:27,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 20:57:27,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-05 20:57:27,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-05 20:57:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 20:57:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-05 20:57:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-05 20:57:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-05 20:57:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-05 20:57:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-05 20:57:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-05 20:57:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-05 20:57:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-05 20:57:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 20:57:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-05 20:57:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-05 20:57:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-05 20:57:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-05 20:57:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-05 20:57:27,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-05 20:57:27,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-05 20:57:27,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-05 20:57:27,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 20:57:27,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 20:57:27,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-05 20:57:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-05 20:57:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-05 20:57:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-05 20:57:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-05 20:57:27,403 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 20:57:27,405 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 20:57:27,625 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-05 20:57:27,626 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 20:57:27,639 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 20:57:27,639 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-05 20:57:27,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:57:27 BoogieIcfgContainer [2024-11-05 20:57:27,640 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 20:57:27,641 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 20:57:27,641 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 20:57:27,645 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 20:57:27,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:57:26" (1/3) ... [2024-11-05 20:57:27,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea737aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:57:27, skipping insertion in model container [2024-11-05 20:57:27,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:27" (2/3) ... [2024-11-05 20:57:27,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea737aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:57:27, skipping insertion in model container [2024-11-05 20:57:27,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:57:27" (3/3) ... [2024-11-05 20:57:27,647 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c.c [2024-11-05 20:57:27,658 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 20:57:27,659 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 20:57:27,699 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 20:57:27,706 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5466a67b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 20:57:27,706 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 20:57:27,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 28 states have internal predecessors, (43), 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) [2024-11-05 20:57:27,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-05 20:57:27,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:57:27,717 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:57:27,717 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:57:27,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:57:27,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1058195810, now seen corresponding path program 1 times [2024-11-05 20:57:27,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:57:27,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2686292] [2024-11-05 20:57:27,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:57:27,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:57:27,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:57:27,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 20:57:27,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-05 20:57:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:57:27,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 20:57:27,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:57:27,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 20:57:27,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:57:27,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 20:57:27,841 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:57:27,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2686292] [2024-11-05 20:57:27,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2686292] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 20:57:27,841 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 20:57:27,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-05 20:57:27,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264567963] [2024-11-05 20:57:27,844 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 20:57:27,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 20:57:27,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:57:27,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 20:57:27,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 20:57:27,865 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 28 states have internal predecessors, (43), 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) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-11-05 20:57:27,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:57:27,877 INFO L93 Difference]: Finished difference Result 56 states and 84 transitions. [2024-11-05 20:57:27,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 20:57:27,879 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2024-11-05 20:57:27,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:57:27,885 INFO L225 Difference]: With dead ends: 56 [2024-11-05 20:57:27,885 INFO L226 Difference]: Without dead ends: 26 [2024-11-05 20:57:27,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 20:57:27,890 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 20:57:27,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 20:57:27,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-05 20:57:27,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-05 20:57:27,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 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) [2024-11-05 20:57:27,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2024-11-05 20:57:27,915 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 13 [2024-11-05 20:57:27,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:57:27,915 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-11-05 20:57:27,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-11-05 20:57:27,916 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-11-05 20:57:27,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-05 20:57:27,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:57:27,917 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:57:27,922 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-05 20:57:28,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:57:28,121 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:57:28,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:57:28,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1055488069, now seen corresponding path program 1 times [2024-11-05 20:57:28,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:57:28,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168552511] [2024-11-05 20:57:28,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:57:28,123 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:57:28,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:57:28,125 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 20:57:28,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-05 20:57:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:57:28,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-05 20:57:28,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:57:28,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 20:57:28,391 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:57:28,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 20:57:28,516 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:57:28,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168552511] [2024-11-05 20:57:28,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1168552511] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 20:57:28,518 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 20:57:28,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2024-11-05 20:57:28,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450215031] [2024-11-05 20:57:28,519 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 20:57:28,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 20:57:28,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:57:28,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 20:57:28,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-05 20:57:28,520 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2024-11-05 20:57:28,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:57:28,686 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2024-11-05 20:57:28,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-05 20:57:28,687 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 15 [2024-11-05 20:57:28,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:57:28,687 INFO L225 Difference]: With dead ends: 34 [2024-11-05 20:57:28,687 INFO L226 Difference]: Without dead ends: 16 [2024-11-05 20:57:28,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-05 20:57:28,688 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 13 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-05 20:57:28,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 46 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-05 20:57:28,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-05 20:57:28,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-05 20:57:28,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 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) [2024-11-05 20:57:28,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2024-11-05 20:57:28,690 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2024-11-05 20:57:28,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:57:28,691 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2024-11-05 20:57:28,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2024-11-05 20:57:28,691 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2024-11-05 20:57:28,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-05 20:57:28,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:57:28,691 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:57:28,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-05 20:57:28,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:57:28,892 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:57:28,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:57:28,892 INFO L85 PathProgramCache]: Analyzing trace with hash 709099857, now seen corresponding path program 1 times [2024-11-05 20:57:28,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:57:28,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384117439] [2024-11-05 20:57:28,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:57:28,893 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:57:28,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:57:28,894 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 20:57:28,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-05 20:57:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:57:28,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-05 20:57:28,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:57:29,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 20:57:29,231 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:57:31,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 20:57:31,954 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:57:31,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384117439] [2024-11-05 20:57:31,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1384117439] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 20:57:31,955 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 20:57:31,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2024-11-05 20:57:31,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065459334] [2024-11-05 20:57:31,955 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 20:57:31,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-05 20:57:31,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:57:31,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-05 20:57:31,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-05 20:57:31,961 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 15 states have internal predecessors, (29), 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) [2024-11-05 20:57:32,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:57:32,605 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2024-11-05 20:57:32,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-05 20:57:32,605 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 15 states have internal predecessors, (29), 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 15 [2024-11-05 20:57:32,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:57:32,606 INFO L225 Difference]: With dead ends: 16 [2024-11-05 20:57:32,606 INFO L226 Difference]: Without dead ends: 0 [2024-11-05 20:57:32,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-05 20:57:32,607 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-05 20:57:32,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 51 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-05 20:57:32,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-05 20:57:32,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-05 20:57:32,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-05 20:57:32,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-05 20:57:32,609 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2024-11-05 20:57:32,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:57:32,609 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-05 20:57:32,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 15 states have internal predecessors, (29), 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) [2024-11-05 20:57:32,609 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-05 20:57:32,609 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-05 20:57:32,611 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-05 20:57:32,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-05 20:57:32,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:57:32,819 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-05 20:57:32,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-05 20:57:32,853 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-05 20:57:32,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 08:57:32 BoogieIcfgContainer [2024-11-05 20:57:32,863 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-05 20:57:32,863 INFO L158 Benchmark]: Toolchain (without parser) took 5880.54ms. Allocated memory is still 378.5MB. Free memory was 332.1MB in the beginning and 251.2MB in the end (delta: 80.9MB). Peak memory consumption was 82.4MB. Max. memory is 8.0GB. [2024-11-05 20:57:32,864 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 226.5MB. Free memory was 173.9MB in the beginning and 173.8MB in the end (delta: 129.8kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-05 20:57:32,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.03ms. Allocated memory is still 378.5MB. Free memory was 332.1MB in the beginning and 317.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-05 20:57:32,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.67ms. Allocated memory is still 378.5MB. Free memory was 317.9MB in the beginning and 315.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-05 20:57:32,866 INFO L158 Benchmark]: Boogie Preprocessor took 37.31ms. Allocated memory is still 378.5MB. Free memory was 315.9MB in the beginning and 313.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-05 20:57:32,866 INFO L158 Benchmark]: RCFGBuilder took 378.52ms. Allocated memory is still 378.5MB. Free memory was 313.3MB in the beginning and 296.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2024-11-05 20:57:32,866 INFO L158 Benchmark]: TraceAbstraction took 5221.63ms. Allocated memory is still 378.5MB. Free memory was 295.9MB in the beginning and 251.2MB in the end (delta: 44.7MB). Peak memory consumption was 45.7MB. Max. memory is 8.0GB. [2024-11-05 20:57:32,867 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 226.5MB. Free memory was 173.9MB in the beginning and 173.8MB in the end (delta: 129.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 210.03ms. Allocated memory is still 378.5MB. Free memory was 332.1MB in the beginning and 317.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.67ms. Allocated memory is still 378.5MB. Free memory was 317.9MB in the beginning and 315.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.31ms. Allocated memory is still 378.5MB. Free memory was 315.9MB in the beginning and 313.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 378.52ms. Allocated memory is still 378.5MB. Free memory was 313.3MB in the beginning and 296.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 5221.63ms. Allocated memory is still 378.5MB. Free memory was 295.9MB in the beginning and 251.2MB in the end (delta: 44.7MB). Peak memory consumption was 45.7MB. Max. memory is 8.0GB. * 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 - PositiveResult [Line: 93]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 133 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 52 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 80 ConstructedInterpolants, 17 QuantifiedInterpolants, 1000 SizeOfPredicates, 9 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-05 20:57:32,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...