/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 09:59:42,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 09:59:42,549 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 09:59:42,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 09:59:42,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 09:59:42,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 09:59:42,573 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 09:59:42,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 09:59:42,574 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 09:59:42,576 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 09:59:42,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 09:59:42,577 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 09:59:42,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 09:59:42,578 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 09:59:42,578 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 09:59:42,579 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 09:59:42,579 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 09:59:42,579 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 09:59:42,579 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 09:59:42,579 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 09:59:42,579 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 09:59:42,580 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 09:59:42,580 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 09:59:42,580 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 09:59:42,580 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 09:59:42,580 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 09:59:42,580 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 09:59:42,580 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 09:59:42,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 09:59:42,581 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 09:59:42,581 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 09:59:42,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 09:59:42,581 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 09:59:42,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 09:59:42,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:59:42,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 09:59:42,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 09:59:42,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 09:59:42,582 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 09:59:42,582 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 09:59:42,582 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 09:59:42,582 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 09:59:42,583 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 09:59:42,583 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 09:59:42,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 09:59:42,583 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 09:59:42,583 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 09:59:42,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 09:59:42,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 09:59:42,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 09:59:42,778 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 09:59:42,782 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 09:59:42,783 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-25 09:59:43,738 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 09:59:43,949 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 09:59:43,950 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-25 09:59:43,961 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25bd17d01/b104e9513b6343eea40e49ed205e5e30/FLAG557200b38 [2023-12-25 09:59:43,970 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25bd17d01/b104e9513b6343eea40e49ed205e5e30 [2023-12-25 09:59:43,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 09:59:43,972 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 09:59:43,973 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 09:59:43,973 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 09:59:43,979 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 09:59:43,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:59:43" (1/1) ... [2023-12-25 09:59:43,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b7578b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:59:43, skipping insertion in model container [2023-12-25 09:59:43,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:59:43" (1/1) ... [2023-12-25 09:59:44,012 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 09:59:44,162 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[7117,7130] [2023-12-25 09:59:44,174 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9784,9797] [2023-12-25 09:59:44,179 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10875,10888] [2023-12-25 09:59:44,182 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11481,11494] [2023-12-25 09:59:44,188 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12900,12913] [2023-12-25 09:59:44,191 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13506,13519] [2023-12-25 09:59:44,195 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14435,14448] [2023-12-25 09:59:44,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:59:44,240 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 09:59:44,271 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[7117,7130] [2023-12-25 09:59:44,284 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9784,9797] [2023-12-25 09:59:44,288 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10875,10888] [2023-12-25 09:59:44,290 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11481,11494] [2023-12-25 09:59:44,302 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12900,12913] [2023-12-25 09:59:44,304 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13506,13519] [2023-12-25 09:59:44,307 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14435,14448] [2023-12-25 09:59:44,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:59:44,342 INFO L206 MainTranslator]: Completed translation [2023-12-25 09:59:44,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:59:44 WrapperNode [2023-12-25 09:59:44,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 09:59:44,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 09:59:44,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 09:59:44,344 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 09:59:44,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:59:44" (1/1) ... [2023-12-25 09:59:44,360 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:59:44" (1/1) ... [2023-12-25 09:59:44,393 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1035 [2023-12-25 09:59:44,393 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 09:59:44,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 09:59:44,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 09:59:44,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 09:59:44,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:59:44" (1/1) ... [2023-12-25 09:59:44,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:59:44" (1/1) ... [2023-12-25 09:59:44,405 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:59:44" (1/1) ... [2023-12-25 09:59:44,418 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-25 09:59:44,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:59:44" (1/1) ... [2023-12-25 09:59:44,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:59:44" (1/1) ... [2023-12-25 09:59:44,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:59:44" (1/1) ... [2023-12-25 09:59:44,441 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:59:44" (1/1) ... [2023-12-25 09:59:44,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:59:44" (1/1) ... [2023-12-25 09:59:44,445 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:59:44" (1/1) ... [2023-12-25 09:59:44,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 09:59:44,449 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 09:59:44,449 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 09:59:44,449 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 09:59:44,449 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:59:44" (1/1) ... [2023-12-25 09:59:44,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:59:44,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 09:59:44,487 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) [2023-12-25 09:59:44,505 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 [2023-12-25 09:59:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 09:59:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 09:59:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 09:59:44,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 09:59:44,631 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 09:59:44,632 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 09:59:45,295 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 09:59:45,329 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 09:59:45,329 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-25 09:59:45,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:59:45 BoogieIcfgContainer [2023-12-25 09:59:45,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 09:59:45,332 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 09:59:45,332 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 09:59:45,337 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 09:59:45,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 09:59:43" (1/3) ... [2023-12-25 09:59:45,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fdc7df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:59:45, skipping insertion in model container [2023-12-25 09:59:45,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:59:44" (2/3) ... [2023-12-25 09:59:45,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fdc7df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:59:45, skipping insertion in model container [2023-12-25 09:59:45,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:59:45" (3/3) ... [2023-12-25 09:59:45,339 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-25 09:59:45,349 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 09:59:45,350 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-12-25 09:59:45,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 09:59:45,396 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;@deb39fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 09:59:45,396 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-25 09:59:45,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 204 states, 196 states have (on average 1.8316326530612246) internal successors, (359), 203 states have internal predecessors, (359), 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) [2023-12-25 09:59:45,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-25 09:59:45,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:59:45,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:59:45,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:59:45,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:59:45,421 INFO L85 PathProgramCache]: Analyzing trace with hash -114756949, now seen corresponding path program 1 times [2023-12-25 09:59:45,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:59:45,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153449088] [2023-12-25 09:59:45,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:59:45,433 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 [2023-12-25 09:59:45,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:59:45,435 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) [2023-12-25 09:59:45,438 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 [2023-12-25 09:59:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:59:45,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:59:45,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:59:45,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:59:45,873 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:59:45,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:59:45,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153449088] [2023-12-25 09:59:45,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153449088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:59:45,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:59:45,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:59:45,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061018908] [2023-12-25 09:59:45,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:59:45,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:59:45,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:59:45,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:59:45,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:59:45,903 INFO L87 Difference]: Start difference. First operand has 204 states, 196 states have (on average 1.8316326530612246) internal successors, (359), 203 states have internal predecessors, (359), 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 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2023-12-25 09:59:46,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:59:46,091 INFO L93 Difference]: Finished difference Result 333 states and 563 transitions. [2023-12-25 09:59:46,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:59:46,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 45 [2023-12-25 09:59:46,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:59:46,101 INFO L225 Difference]: With dead ends: 333 [2023-12-25 09:59:46,101 INFO L226 Difference]: Without dead ends: 173 [2023-12-25 09:59:46,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:59:46,106 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 556 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:59:46,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 209 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:59:46,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-25 09:59:46,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2023-12-25 09:59:46,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 166 states have (on average 1.2951807228915662) internal successors, (215), 172 states have internal predecessors, (215), 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) [2023-12-25 09:59:46,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 215 transitions. [2023-12-25 09:59:46,145 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 215 transitions. Word has length 45 [2023-12-25 09:59:46,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:59:46,146 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 215 transitions. [2023-12-25 09:59:46,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2023-12-25 09:59:46,146 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 215 transitions. [2023-12-25 09:59:46,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-25 09:59:46,151 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:59:46,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:59:46,163 INFO L540 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)] Forceful destruction successful, exit code 0 [2023-12-25 09:59:46,356 WARN L477 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 [2023-12-25 09:59:46,356 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:59:46,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:59:46,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1853332142, now seen corresponding path program 1 times [2023-12-25 09:59:46,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:59:46,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117833686] [2023-12-25 09:59:46,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:59:46,357 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 [2023-12-25 09:59:46,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:59:46,359 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) [2023-12-25 09:59:46,361 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 [2023-12-25 09:59:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:59:46,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:59:46,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:59:46,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:59:46,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:59:46,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:59:46,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117833686] [2023-12-25 09:59:46,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117833686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:59:46,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:59:46,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:59:46,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644639070] [2023-12-25 09:59:46,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:59:46,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:59:46,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:59:46,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:59:46,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:59:46,567 INFO L87 Difference]: Start difference. First operand 173 states and 215 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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) [2023-12-25 09:59:46,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:59:46,676 INFO L93 Difference]: Finished difference Result 296 states and 377 transitions. [2023-12-25 09:59:46,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:59:46,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 46 [2023-12-25 09:59:46,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:59:46,678 INFO L225 Difference]: With dead ends: 296 [2023-12-25 09:59:46,678 INFO L226 Difference]: Without dead ends: 160 [2023-12-25 09:59:46,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:59:46,679 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 365 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:59:46,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 130 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:59:46,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-12-25 09:59:46,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2023-12-25 09:59:46,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 153 states have (on average 1.3006535947712419) internal successors, (199), 159 states have internal predecessors, (199), 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) [2023-12-25 09:59:46,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 199 transitions. [2023-12-25 09:59:46,684 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 199 transitions. Word has length 46 [2023-12-25 09:59:46,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:59:46,684 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 199 transitions. [2023-12-25 09:59:46,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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) [2023-12-25 09:59:46,685 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 199 transitions. [2023-12-25 09:59:46,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-25 09:59:46,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:59:46,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:59:46,690 INFO L540 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)] Forceful destruction successful, exit code 0 [2023-12-25 09:59:46,887 WARN L477 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 [2023-12-25 09:59:46,890 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:59:46,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:59:46,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1505086284, now seen corresponding path program 1 times [2023-12-25 09:59:46,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:59:46,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957423663] [2023-12-25 09:59:46,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:59:46,891 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 [2023-12-25 09:59:46,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:59:46,892 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) [2023-12-25 09:59:46,894 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 [2023-12-25 09:59:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:59:46,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:59:46,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:59:47,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:59:47,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:59:47,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:59:47,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957423663] [2023-12-25 09:59:47,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957423663] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:59:47,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:59:47,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:59:47,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816193013] [2023-12-25 09:59:47,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:59:47,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:59:47,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:59:47,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:59:47,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:59:47,109 INFO L87 Difference]: Start difference. First operand 160 states and 199 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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) [2023-12-25 09:59:47,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:59:47,226 INFO L93 Difference]: Finished difference Result 283 states and 360 transitions. [2023-12-25 09:59:47,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:59:47,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 47 [2023-12-25 09:59:47,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:59:47,228 INFO L225 Difference]: With dead ends: 283 [2023-12-25 09:59:47,228 INFO L226 Difference]: Without dead ends: 155 [2023-12-25 09:59:47,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:59:47,232 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 342 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:59:47,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 127 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:59:47,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-12-25 09:59:47,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-12-25 09:59:47,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 148 states have (on average 1.2972972972972974) internal successors, (192), 154 states have internal predecessors, (192), 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) [2023-12-25 09:59:47,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 192 transitions. [2023-12-25 09:59:47,242 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 192 transitions. Word has length 47 [2023-12-25 09:59:47,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:59:47,242 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 192 transitions. [2023-12-25 09:59:47,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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) [2023-12-25 09:59:47,242 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 192 transitions. [2023-12-25 09:59:47,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-25 09:59:47,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:59:47,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:59:47,250 INFO L540 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)] Forceful destruction successful, exit code 0 [2023-12-25 09:59:47,448 WARN L477 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 [2023-12-25 09:59:47,450 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:59:47,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:59:47,451 INFO L85 PathProgramCache]: Analyzing trace with hash -990553041, now seen corresponding path program 1 times [2023-12-25 09:59:47,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:59:47,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441711747] [2023-12-25 09:59:47,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:59:47,451 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 [2023-12-25 09:59:47,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:59:47,452 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2023-12-25 09:59:47,455 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 (5)] Waiting until timeout for monitored process [2023-12-25 09:59:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:59:47,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:59:47,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:59:47,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:59:47,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:59:47,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:59:47,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441711747] [2023-12-25 09:59:47,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [441711747] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:59:47,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:59:47,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:59:47,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639985864] [2023-12-25 09:59:47,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:59:47,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:59:47,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:59:47,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:59:47,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:59:47,926 INFO L87 Difference]: Start difference. First operand 155 states and 192 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2023-12-25 09:59:48,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:59:48,479 INFO L93 Difference]: Finished difference Result 203 states and 260 transitions. [2023-12-25 09:59:48,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 09:59:48,480 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2023-12-25 09:59:48,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:59:48,481 INFO L225 Difference]: With dead ends: 203 [2023-12-25 09:59:48,481 INFO L226 Difference]: Without dead ends: 198 [2023-12-25 09:59:48,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 09:59:48,482 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 634 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:59:48,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 506 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:59:48,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-12-25 09:59:48,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 155. [2023-12-25 09:59:48,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 148 states have (on average 1.2905405405405406) internal successors, (191), 154 states have internal predecessors, (191), 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) [2023-12-25 09:59:48,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 191 transitions. [2023-12-25 09:59:48,486 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 191 transitions. Word has length 48 [2023-12-25 09:59:48,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:59:48,486 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 191 transitions. [2023-12-25 09:59:48,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2023-12-25 09:59:48,486 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 191 transitions. [2023-12-25 09:59:48,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-25 09:59:48,487 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:59:48,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:59:48,493 INFO L540 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 (5)] Forceful destruction successful, exit code 0 [2023-12-25 09:59:48,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 [2023-12-25 09:59:48,694 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:59:48,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:59:48,694 INFO L85 PathProgramCache]: Analyzing trace with hash 921644061, now seen corresponding path program 1 times [2023-12-25 09:59:48,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:59:48,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1839245377] [2023-12-25 09:59:48,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:59:48,695 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 [2023-12-25 09:59:48,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:59:48,695 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2023-12-25 09:59:48,696 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 (6)] Waiting until timeout for monitored process [2023-12-25 09:59:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:59:48,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:59:48,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:59:49,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:59:49,078 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:59:49,079 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:59:49,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1839245377] [2023-12-25 09:59:49,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1839245377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:59:49,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:59:49,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:59:49,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881207737] [2023-12-25 09:59:49,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:59:49,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:59:49,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:59:49,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:59:49,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:59:49,080 INFO L87 Difference]: Start difference. First operand 155 states and 191 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2023-12-25 09:59:49,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:59:49,567 INFO L93 Difference]: Finished difference Result 258 states and 338 transitions. [2023-12-25 09:59:49,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 09:59:49,567 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2023-12-25 09:59:49,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:59:49,568 INFO L225 Difference]: With dead ends: 258 [2023-12-25 09:59:49,568 INFO L226 Difference]: Without dead ends: 198 [2023-12-25 09:59:49,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 09:59:49,569 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 500 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:59:49,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 497 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:59:49,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-12-25 09:59:49,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 155. [2023-12-25 09:59:49,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 148 states have (on average 1.2837837837837838) internal successors, (190), 154 states have internal predecessors, (190), 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) [2023-12-25 09:59:49,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 190 transitions. [2023-12-25 09:59:49,573 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 190 transitions. Word has length 48 [2023-12-25 09:59:49,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:59:49,573 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 190 transitions. [2023-12-25 09:59:49,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2023-12-25 09:59:49,573 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 190 transitions. [2023-12-25 09:59:49,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-25 09:59:49,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:59:49,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:59:49,582 INFO L540 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 (6)] Forceful destruction successful, exit code 0 [2023-12-25 09:59:49,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 [2023-12-25 09:59:49,776 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:59:49,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:59:49,777 INFO L85 PathProgramCache]: Analyzing trace with hash -528561187, now seen corresponding path program 1 times [2023-12-25 09:59:49,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:59:49,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093185927] [2023-12-25 09:59:49,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:59:49,777 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 [2023-12-25 09:59:49,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:59:49,778 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2023-12-25 09:59:49,781 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 (7)] Waiting until timeout for monitored process [2023-12-25 09:59:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:59:49,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 09:59:49,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:59:50,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:59:50,057 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:59:50,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:59:50,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093185927] [2023-12-25 09:59:50,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093185927] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:59:50,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:59:50,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 09:59:50,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146211443] [2023-12-25 09:59:50,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:59:50,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 09:59:50,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:59:50,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 09:59:50,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:59:50,058 INFO L87 Difference]: Start difference. First operand 155 states and 190 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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) [2023-12-25 09:59:50,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:59:50,320 INFO L93 Difference]: Finished difference Result 238 states and 300 transitions. [2023-12-25 09:59:50,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 09:59:50,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2023-12-25 09:59:50,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:59:50,321 INFO L225 Difference]: With dead ends: 238 [2023-12-25 09:59:50,321 INFO L226 Difference]: Without dead ends: 155 [2023-12-25 09:59:50,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-25 09:59:50,322 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 505 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:59:50,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 231 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:59:50,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-12-25 09:59:50,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-12-25 09:59:50,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 148 states have (on average 1.277027027027027) internal successors, (189), 154 states have internal predecessors, (189), 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) [2023-12-25 09:59:50,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 189 transitions. [2023-12-25 09:59:50,325 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 189 transitions. Word has length 48 [2023-12-25 09:59:50,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:59:50,325 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 189 transitions. [2023-12-25 09:59:50,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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) [2023-12-25 09:59:50,325 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 189 transitions. [2023-12-25 09:59:50,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-25 09:59:50,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:59:50,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:59:50,332 INFO L540 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 (7)] Forceful destruction successful, exit code 0 [2023-12-25 09:59:50,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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 [2023-12-25 09:59:50,528 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:59:50,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:59:50,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1923049146, now seen corresponding path program 1 times [2023-12-25 09:59:50,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:59:50,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1853458975] [2023-12-25 09:59:50,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:59:50,529 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 [2023-12-25 09:59:50,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:59:50,530 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2023-12-25 09:59:50,531 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 (8)] Waiting until timeout for monitored process [2023-12-25 09:59:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:59:50,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-25 09:59:50,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:59:51,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:59:51,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:59:51,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:59:51,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1853458975] [2023-12-25 09:59:51,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1853458975] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:59:51,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:59:51,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-25 09:59:51,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837100613] [2023-12-25 09:59:51,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:59:51,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-25 09:59:51,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:59:51,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-25 09:59:51,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:59:51,634 INFO L87 Difference]: Start difference. First operand 155 states and 189 transitions. Second operand has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 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) [2023-12-25 09:59:52,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:59:52,823 INFO L93 Difference]: Finished difference Result 402 states and 527 transitions. [2023-12-25 09:59:52,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 09:59:52,823 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 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 50 [2023-12-25 09:59:52,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:59:52,824 INFO L225 Difference]: With dead ends: 402 [2023-12-25 09:59:52,824 INFO L226 Difference]: Without dead ends: 310 [2023-12-25 09:59:52,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2023-12-25 09:59:52,825 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 718 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:59:52,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 1602 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:59:52,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-12-25 09:59:52,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 128. [2023-12-25 09:59:52,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 127 states have internal predecessors, (158), 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) [2023-12-25 09:59:52,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 158 transitions. [2023-12-25 09:59:52,830 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 158 transitions. Word has length 50 [2023-12-25 09:59:52,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:59:52,830 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 158 transitions. [2023-12-25 09:59:52,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 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) [2023-12-25 09:59:52,830 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 158 transitions. [2023-12-25 09:59:52,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-25 09:59:52,831 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:59:52,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:59:52,838 INFO L540 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 (8)] Forceful destruction successful, exit code 0 [2023-12-25 09:59:53,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /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 [2023-12-25 09:59:53,034 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:59:53,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:59:53,034 INFO L85 PathProgramCache]: Analyzing trace with hash -336264989, now seen corresponding path program 1 times [2023-12-25 09:59:53,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:59:53,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613559705] [2023-12-25 09:59:53,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:59:53,035 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 [2023-12-25 09:59:53,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:59:53,036 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2023-12-25 09:59:53,036 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 (9)] Waiting until timeout for monitored process [2023-12-25 09:59:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:59:53,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:59:53,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:59:53,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:59:53,409 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:59:53,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:59:53,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613559705] [2023-12-25 09:59:53,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613559705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:59:53,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:59:53,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:59:53,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570075768] [2023-12-25 09:59:53,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:59:53,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:59:53,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:59:53,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:59:53,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:59:53,411 INFO L87 Difference]: Start difference. First operand 128 states and 158 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2023-12-25 09:59:53,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:59:53,736 INFO L93 Difference]: Finished difference Result 189 states and 242 transitions. [2023-12-25 09:59:53,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 09:59:53,738 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2023-12-25 09:59:53,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:59:53,738 INFO L225 Difference]: With dead ends: 189 [2023-12-25 09:59:53,738 INFO L226 Difference]: Without dead ends: 128 [2023-12-25 09:59:53,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 09:59:53,739 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 413 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:59:53,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 254 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:59:53,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-12-25 09:59:53,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2023-12-25 09:59:53,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 124 states have (on average 1.2580645161290323) internal successors, (156), 127 states have internal predecessors, (156), 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) [2023-12-25 09:59:53,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 156 transitions. [2023-12-25 09:59:53,741 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 156 transitions. Word has length 51 [2023-12-25 09:59:53,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:59:53,742 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 156 transitions. [2023-12-25 09:59:53,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2023-12-25 09:59:53,742 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 156 transitions. [2023-12-25 09:59:53,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-25 09:59:53,742 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:59:53,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:59:53,746 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 (9)] Ended with exit code 0 [2023-12-25 09:59:53,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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 [2023-12-25 09:59:53,945 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:59:53,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:59:53,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1070897787, now seen corresponding path program 1 times [2023-12-25 09:59:53,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:59:53,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487419161] [2023-12-25 09:59:53,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:59:53,946 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 [2023-12-25 09:59:53,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:59:53,947 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2023-12-25 09:59:53,950 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 (10)] Waiting until timeout for monitored process [2023-12-25 09:59:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:59:54,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 09:59:54,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:59:55,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:59:55,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:59:55,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:59:55,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487419161] [2023-12-25 09:59:55,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487419161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:59:55,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:59:55,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-25 09:59:55,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169713531] [2023-12-25 09:59:55,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:59:55,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 09:59:55,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:59:55,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 09:59:55,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-12-25 09:59:55,130 INFO L87 Difference]: Start difference. First operand 128 states and 156 transitions. Second operand has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 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) [2023-12-25 09:59:56,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:59:56,395 INFO L93 Difference]: Finished difference Result 302 states and 397 transitions. [2023-12-25 09:59:56,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-25 09:59:56,395 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 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 51 [2023-12-25 09:59:56,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:59:56,396 INFO L225 Difference]: With dead ends: 302 [2023-12-25 09:59:56,396 INFO L226 Difference]: Without dead ends: 286 [2023-12-25 09:59:56,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2023-12-25 09:59:56,397 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 765 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 2001 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:59:56,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 2001 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:59:56,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-12-25 09:59:56,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 106. [2023-12-25 09:59:56,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 104 states have (on average 1.2596153846153846) internal successors, (131), 105 states have internal predecessors, (131), 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) [2023-12-25 09:59:56,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 131 transitions. [2023-12-25 09:59:56,399 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 131 transitions. Word has length 51 [2023-12-25 09:59:56,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:59:56,399 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 131 transitions. [2023-12-25 09:59:56,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 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) [2023-12-25 09:59:56,400 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 131 transitions. [2023-12-25 09:59:56,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-25 09:59:56,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:59:56,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:59:56,405 INFO L540 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 (10)] Forceful destruction successful, exit code 0 [2023-12-25 09:59:56,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /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 [2023-12-25 09:59:56,602 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:59:56,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:59:56,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1737446413, now seen corresponding path program 1 times [2023-12-25 09:59:56,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:59:56,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581032908] [2023-12-25 09:59:56,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:59:56,603 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 [2023-12-25 09:59:56,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:59:56,604 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2023-12-25 09:59:56,605 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 (11)] Waiting until timeout for monitored process [2023-12-25 09:59:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:59:56,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-25 09:59:56,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:59:58,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:59:58,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:59:58,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:59:58,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581032908] [2023-12-25 09:59:58,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581032908] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:59:58,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:59:58,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-25 09:59:58,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694922790] [2023-12-25 09:59:58,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:59:58,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-25 09:59:58,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:59:58,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-25 09:59:58,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:59:58,161 INFO L87 Difference]: Start difference. First operand 106 states and 131 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 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) [2023-12-25 10:00:03,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:03,745 INFO L93 Difference]: Finished difference Result 398 states and 535 transitions. [2023-12-25 10:00:03,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 10:00:03,746 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 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 53 [2023-12-25 10:00:03,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:03,747 INFO L225 Difference]: With dead ends: 398 [2023-12-25 10:00:03,747 INFO L226 Difference]: Without dead ends: 342 [2023-12-25 10:00:03,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2023-12-25 10:00:03,748 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1011 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 2067 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:03,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 2067 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-25 10:00:03,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2023-12-25 10:00:03,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 117. [2023-12-25 10:00:03,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 115 states have (on average 1.2521739130434784) internal successors, (144), 116 states have internal predecessors, (144), 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) [2023-12-25 10:00:03,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 144 transitions. [2023-12-25 10:00:03,752 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 144 transitions. Word has length 53 [2023-12-25 10:00:03,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:03,752 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 144 transitions. [2023-12-25 10:00:03,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 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) [2023-12-25 10:00:03,752 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 144 transitions. [2023-12-25 10:00:03,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 10:00:03,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:03,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:03,758 INFO L540 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 (11)] Forceful destruction successful, exit code 0 [2023-12-25 10:00:03,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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 [2023-12-25 10:00:03,955 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:03,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:03,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1478570090, now seen corresponding path program 1 times [2023-12-25 10:00:03,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:03,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292224335] [2023-12-25 10:00:03,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:03,956 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:00:03,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:03,957 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2023-12-25 10:00:03,957 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 (12)] Waiting until timeout for monitored process [2023-12-25 10:00:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:04,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 10:00:04,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:04,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:04,371 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:00:04,371 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:04,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292224335] [2023-12-25 10:00:04,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292224335] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:00:04,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:00:04,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 10:00:04,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673345334] [2023-12-25 10:00:04,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:00:04,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 10:00:04,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:04,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 10:00:04,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:00:04,373 INFO L87 Difference]: Start difference. First operand 117 states and 144 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 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) [2023-12-25 10:00:04,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:04,725 INFO L93 Difference]: Finished difference Result 173 states and 224 transitions. [2023-12-25 10:00:04,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 10:00:04,726 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 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 54 [2023-12-25 10:00:04,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:04,727 INFO L225 Difference]: With dead ends: 173 [2023-12-25 10:00:04,727 INFO L226 Difference]: Without dead ends: 167 [2023-12-25 10:00:04,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2023-12-25 10:00:04,727 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 366 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:04,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 687 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 10:00:04,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-12-25 10:00:04,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 110. [2023-12-25 10:00:04,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.2568807339449541) internal successors, (137), 109 states have internal predecessors, (137), 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) [2023-12-25 10:00:04,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 137 transitions. [2023-12-25 10:00:04,730 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 137 transitions. Word has length 54 [2023-12-25 10:00:04,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:04,731 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 137 transitions. [2023-12-25 10:00:04,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 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) [2023-12-25 10:00:04,731 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 137 transitions. [2023-12-25 10:00:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-25 10:00:04,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:04,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:04,736 INFO L540 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 (12)] Forceful destruction successful, exit code 0 [2023-12-25 10:00:04,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /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 [2023-12-25 10:00:04,932 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:04,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:04,933 INFO L85 PathProgramCache]: Analyzing trace with hash -546984540, now seen corresponding path program 1 times [2023-12-25 10:00:04,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:04,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392738857] [2023-12-25 10:00:04,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:04,933 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 [2023-12-25 10:00:04,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:04,934 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2023-12-25 10:00:04,935 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 (13)] Waiting until timeout for monitored process [2023-12-25 10:00:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:04,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:00:04,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:05,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:05,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:00:05,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:05,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392738857] [2023-12-25 10:00:05,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1392738857] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:00:05,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:00:05,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:00:05,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272073957] [2023-12-25 10:00:05,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:00:05,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:00:05,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:05,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:00:05,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:00:05,301 INFO L87 Difference]: Start difference. First operand 110 states and 137 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 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) [2023-12-25 10:00:05,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:05,578 INFO L93 Difference]: Finished difference Result 159 states and 207 transitions. [2023-12-25 10:00:05,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:00:05,578 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 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 71 [2023-12-25 10:00:05,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:05,579 INFO L225 Difference]: With dead ends: 159 [2023-12-25 10:00:05,579 INFO L226 Difference]: Without dead ends: 110 [2023-12-25 10:00:05,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 10:00:05,579 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 405 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:05,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 212 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 10:00:05,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-12-25 10:00:05,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2023-12-25 10:00:05,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.238532110091743) internal successors, (135), 109 states have internal predecessors, (135), 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) [2023-12-25 10:00:05,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 135 transitions. [2023-12-25 10:00:05,581 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 135 transitions. Word has length 71 [2023-12-25 10:00:05,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:05,582 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 135 transitions. [2023-12-25 10:00:05,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 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) [2023-12-25 10:00:05,582 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 135 transitions. [2023-12-25 10:00:05,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-25 10:00:05,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:05,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:05,587 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 (13)] Ended with exit code 0 [2023-12-25 10:00:05,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /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 [2023-12-25 10:00:05,785 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:05,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:05,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1464591163, now seen corresponding path program 1 times [2023-12-25 10:00:05,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:05,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351207013] [2023-12-25 10:00:05,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:05,786 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 [2023-12-25 10:00:05,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:05,787 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2023-12-25 10:00:05,788 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 (14)] Waiting until timeout for monitored process [2023-12-25 10:00:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:05,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:00:05,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:05,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:05,879 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:00:05,879 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:05,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351207013] [2023-12-25 10:00:05,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351207013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:00:05,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:00:05,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:00:05,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744805139] [2023-12-25 10:00:05,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:00:05,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:00:05,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:05,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:00:05,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:00:05,880 INFO L87 Difference]: Start difference. First operand 110 states and 135 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2023-12-25 10:00:05,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:05,896 INFO L93 Difference]: Finished difference Result 188 states and 251 transitions. [2023-12-25 10:00:05,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:00:05,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2023-12-25 10:00:05,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:05,897 INFO L225 Difference]: With dead ends: 188 [2023-12-25 10:00:05,897 INFO L226 Difference]: Without dead ends: 145 [2023-12-25 10:00:05,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:00:05,898 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 64 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:05,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 237 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:00:05,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-12-25 10:00:05,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143. [2023-12-25 10:00:05,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.3028169014084507) internal successors, (185), 142 states have internal predecessors, (185), 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) [2023-12-25 10:00:05,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 185 transitions. [2023-12-25 10:00:05,900 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 185 transitions. Word has length 74 [2023-12-25 10:00:05,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:05,900 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 185 transitions. [2023-12-25 10:00:05,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2023-12-25 10:00:05,900 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 185 transitions. [2023-12-25 10:00:05,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-25 10:00:05,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:05,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:05,904 INFO L540 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 (14)] Forceful destruction successful, exit code 0 [2023-12-25 10:00:06,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /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 [2023-12-25 10:00:06,103 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:06,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:06,104 INFO L85 PathProgramCache]: Analyzing trace with hash 536613728, now seen corresponding path program 1 times [2023-12-25 10:00:06,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:06,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426265553] [2023-12-25 10:00:06,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:06,104 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 [2023-12-25 10:00:06,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:06,105 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2023-12-25 10:00:06,108 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 (15)] Waiting until timeout for monitored process [2023-12-25 10:00:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:06,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:00:06,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:06,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:06,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:00:06,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:06,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426265553] [2023-12-25 10:00:06,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426265553] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:00:06,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:00:06,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:00:06,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498317302] [2023-12-25 10:00:06,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:00:06,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:00:06,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:06,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:00:06,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:00:06,203 INFO L87 Difference]: Start difference. First operand 143 states and 185 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2023-12-25 10:00:06,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:06,225 INFO L93 Difference]: Finished difference Result 279 states and 389 transitions. [2023-12-25 10:00:06,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:00:06,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2023-12-25 10:00:06,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:06,226 INFO L225 Difference]: With dead ends: 279 [2023-12-25 10:00:06,226 INFO L226 Difference]: Without dead ends: 203 [2023-12-25 10:00:06,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:00:06,227 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 56 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:06,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 238 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:00:06,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-25 10:00:06,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 201. [2023-12-25 10:00:06,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 200 states have (on average 1.36) internal successors, (272), 200 states have internal predecessors, (272), 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) [2023-12-25 10:00:06,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 272 transitions. [2023-12-25 10:00:06,230 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 272 transitions. Word has length 75 [2023-12-25 10:00:06,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:06,231 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 272 transitions. [2023-12-25 10:00:06,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2023-12-25 10:00:06,231 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 272 transitions. [2023-12-25 10:00:06,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-25 10:00:06,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:06,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:06,235 INFO L540 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 (15)] Forceful destruction successful, exit code 0 [2023-12-25 10:00:06,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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 [2023-12-25 10:00:06,434 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:06,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:06,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1161491148, now seen corresponding path program 1 times [2023-12-25 10:00:06,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:06,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634438211] [2023-12-25 10:00:06,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:06,435 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 [2023-12-25 10:00:06,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:06,436 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2023-12-25 10:00:06,436 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 (16)] Waiting until timeout for monitored process [2023-12-25 10:00:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:06,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:00:06,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:06,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:06,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:00:06,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:06,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1634438211] [2023-12-25 10:00:06,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1634438211] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:00:06,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:00:06,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 10:00:06,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218506527] [2023-12-25 10:00:06,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:00:06,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:00:06,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:06,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:00:06,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:00:06,804 INFO L87 Difference]: Start difference. First operand 201 states and 272 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2023-12-25 10:00:06,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:06,855 INFO L93 Difference]: Finished difference Result 737 states and 1076 transitions. [2023-12-25 10:00:06,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:00:06,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2023-12-25 10:00:06,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:06,857 INFO L225 Difference]: With dead ends: 737 [2023-12-25 10:00:06,857 INFO L226 Difference]: Without dead ends: 603 [2023-12-25 10:00:06,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:00:06,858 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 269 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:06,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 309 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:00:06,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2023-12-25 10:00:06,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 465. [2023-12-25 10:00:06,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 464 states have (on average 1.4224137931034482) internal successors, (660), 464 states have internal predecessors, (660), 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) [2023-12-25 10:00:06,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 660 transitions. [2023-12-25 10:00:06,866 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 660 transitions. Word has length 76 [2023-12-25 10:00:06,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:06,866 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 660 transitions. [2023-12-25 10:00:06,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2023-12-25 10:00:06,866 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 660 transitions. [2023-12-25 10:00:06,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-25 10:00:06,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:06,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:06,871 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 (16)] Ended with exit code 0 [2023-12-25 10:00:07,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 [2023-12-25 10:00:07,070 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:07,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:07,070 INFO L85 PathProgramCache]: Analyzing trace with hash -674968363, now seen corresponding path program 1 times [2023-12-25 10:00:07,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:07,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984219209] [2023-12-25 10:00:07,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:07,070 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 [2023-12-25 10:00:07,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:07,072 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2023-12-25 10:00:07,088 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 (17)] Waiting until timeout for monitored process [2023-12-25 10:00:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:07,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 10:00:07,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:07,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:07,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:00:07,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:07,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984219209] [2023-12-25 10:00:07,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1984219209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:00:07,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:00:07,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:00:07,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054472775] [2023-12-25 10:00:07,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:00:07,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 10:00:07,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:07,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 10:00:07,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 10:00:07,217 INFO L87 Difference]: Start difference. First operand 465 states and 660 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2023-12-25 10:00:07,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:07,244 INFO L93 Difference]: Finished difference Result 1197 states and 1726 transitions. [2023-12-25 10:00:07,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 10:00:07,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 78 [2023-12-25 10:00:07,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:07,247 INFO L225 Difference]: With dead ends: 1197 [2023-12-25 10:00:07,247 INFO L226 Difference]: Without dead ends: 799 [2023-12-25 10:00:07,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 10:00:07,247 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 39 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:07,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 285 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:00:07,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2023-12-25 10:00:07,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 785. [2023-12-25 10:00:07,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 784 states have (on average 1.3928571428571428) internal successors, (1092), 784 states have internal predecessors, (1092), 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) [2023-12-25 10:00:07,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1092 transitions. [2023-12-25 10:00:07,260 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1092 transitions. Word has length 78 [2023-12-25 10:00:07,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:07,260 INFO L495 AbstractCegarLoop]: Abstraction has 785 states and 1092 transitions. [2023-12-25 10:00:07,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2023-12-25 10:00:07,260 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1092 transitions. [2023-12-25 10:00:07,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-25 10:00:07,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:07,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:07,266 INFO L540 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 (17)] Forceful destruction successful, exit code 0 [2023-12-25 10:00:07,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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 [2023-12-25 10:00:07,464 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:07,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:07,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1948763092, now seen corresponding path program 1 times [2023-12-25 10:00:07,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:07,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697595744] [2023-12-25 10:00:07,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:07,465 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 [2023-12-25 10:00:07,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:07,466 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2023-12-25 10:00:07,471 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 (18)] Waiting until timeout for monitored process [2023-12-25 10:00:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:07,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 10:00:07,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:07,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:07,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:00:07,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:07,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697595744] [2023-12-25 10:00:07,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [697595744] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:00:07,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:00:07,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 10:00:07,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437154536] [2023-12-25 10:00:07,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:00:07,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:00:07,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:07,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:00:07,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:00:07,563 INFO L87 Difference]: Start difference. First operand 785 states and 1092 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2023-12-25 10:00:07,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:07,613 INFO L93 Difference]: Finished difference Result 1452 states and 2012 transitions. [2023-12-25 10:00:07,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 10:00:07,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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 79 [2023-12-25 10:00:07,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:07,617 INFO L225 Difference]: With dead ends: 1452 [2023-12-25 10:00:07,617 INFO L226 Difference]: Without dead ends: 1450 [2023-12-25 10:00:07,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:00:07,618 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 202 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:07,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 497 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:00:07,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2023-12-25 10:00:07,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 833. [2023-12-25 10:00:07,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 832 states have (on average 1.3653846153846154) internal successors, (1136), 832 states have internal predecessors, (1136), 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) [2023-12-25 10:00:07,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1136 transitions. [2023-12-25 10:00:07,632 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1136 transitions. Word has length 79 [2023-12-25 10:00:07,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:07,632 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1136 transitions. [2023-12-25 10:00:07,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2023-12-25 10:00:07,632 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1136 transitions. [2023-12-25 10:00:07,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-25 10:00:07,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:07,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:07,641 INFO L540 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 (18)] Forceful destruction successful, exit code 0 [2023-12-25 10:00:07,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 [2023-12-25 10:00:07,835 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:07,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:07,835 INFO L85 PathProgramCache]: Analyzing trace with hash 68512103, now seen corresponding path program 1 times [2023-12-25 10:00:07,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:07,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134262794] [2023-12-25 10:00:07,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:07,836 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 [2023-12-25 10:00:07,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:07,837 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2023-12-25 10:00:07,837 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 (19)] Waiting until timeout for monitored process [2023-12-25 10:00:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:07,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:00:07,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:07,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:07,932 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:00:07,932 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:07,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134262794] [2023-12-25 10:00:07,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134262794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:00:07,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:00:07,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:00:07,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815499572] [2023-12-25 10:00:07,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:00:07,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:00:07,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:07,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:00:07,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:00:07,933 INFO L87 Difference]: Start difference. First operand 833 states and 1136 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2023-12-25 10:00:07,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:07,953 INFO L93 Difference]: Finished difference Result 1584 states and 2210 transitions. [2023-12-25 10:00:07,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:00:07,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2023-12-25 10:00:07,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:07,956 INFO L225 Difference]: With dead ends: 1584 [2023-12-25 10:00:07,956 INFO L226 Difference]: Without dead ends: 1149 [2023-12-25 10:00:07,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:00:07,957 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 68 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:07,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 240 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:00:07,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2023-12-25 10:00:07,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1147. [2023-12-25 10:00:07,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1146 states have (on average 1.3699825479930192) internal successors, (1570), 1146 states have internal predecessors, (1570), 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) [2023-12-25 10:00:07,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1570 transitions. [2023-12-25 10:00:07,969 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1570 transitions. Word has length 79 [2023-12-25 10:00:07,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:07,970 INFO L495 AbstractCegarLoop]: Abstraction has 1147 states and 1570 transitions. [2023-12-25 10:00:07,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2023-12-25 10:00:07,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1570 transitions. [2023-12-25 10:00:07,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 10:00:07,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:07,971 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:07,975 INFO L540 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 (19)] Forceful destruction successful, exit code 0 [2023-12-25 10:00:08,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 [2023-12-25 10:00:08,174 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:08,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:08,174 INFO L85 PathProgramCache]: Analyzing trace with hash 588579121, now seen corresponding path program 1 times [2023-12-25 10:00:08,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:08,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613341600] [2023-12-25 10:00:08,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:08,175 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 [2023-12-25 10:00:08,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:08,176 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2023-12-25 10:00:08,204 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 (20)] Waiting until timeout for monitored process [2023-12-25 10:00:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:08,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:00:08,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:08,284 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:08,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:00:08,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:08,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613341600] [2023-12-25 10:00:08,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613341600] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:00:08,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:00:08,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:00:08,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089877746] [2023-12-25 10:00:08,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:00:08,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:00:08,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:08,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:00:08,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:00:08,286 INFO L87 Difference]: Start difference. First operand 1147 states and 1570 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2023-12-25 10:00:08,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:08,301 INFO L93 Difference]: Finished difference Result 1922 states and 2659 transitions. [2023-12-25 10:00:08,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:00:08,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 99 [2023-12-25 10:00:08,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:08,303 INFO L225 Difference]: With dead ends: 1922 [2023-12-25 10:00:08,303 INFO L226 Difference]: Without dead ends: 844 [2023-12-25 10:00:08,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:00:08,304 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 56 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:08,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 234 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:00:08,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2023-12-25 10:00:08,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 842. [2023-12-25 10:00:08,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 1.3650416171224733) internal successors, (1148), 841 states have internal predecessors, (1148), 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) [2023-12-25 10:00:08,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1148 transitions. [2023-12-25 10:00:08,314 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1148 transitions. Word has length 99 [2023-12-25 10:00:08,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:08,314 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1148 transitions. [2023-12-25 10:00:08,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2023-12-25 10:00:08,315 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1148 transitions. [2023-12-25 10:00:08,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 10:00:08,315 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:08,315 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:08,320 INFO L540 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 (20)] Forceful destruction successful, exit code 0 [2023-12-25 10:00:08,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 [2023-12-25 10:00:08,518 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:08,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:08,519 INFO L85 PathProgramCache]: Analyzing trace with hash 946591999, now seen corresponding path program 1 times [2023-12-25 10:00:08,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:08,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17544644] [2023-12-25 10:00:08,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:08,519 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 [2023-12-25 10:00:08,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:08,520 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2023-12-25 10:00:08,525 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 (21)] Waiting until timeout for monitored process [2023-12-25 10:00:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:08,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 10:00:08,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:09,260 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:09,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:00:09,556 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:09,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:09,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17544644] [2023-12-25 10:00:09,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17544644] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:00:09,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:00:09,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-12-25 10:00:09,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969111221] [2023-12-25 10:00:09,557 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:00:09,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-25 10:00:09,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:09,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-25 10:00:09,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2023-12-25 10:00:09,558 INFO L87 Difference]: Start difference. First operand 842 states and 1148 transitions. Second operand has 22 states, 22 states have (on average 8.590909090909092) internal successors, (189), 21 states have internal predecessors, (189), 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) [2023-12-25 10:00:13,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:13,759 INFO L93 Difference]: Finished difference Result 4416 states and 6059 transitions. [2023-12-25 10:00:13,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-25 10:00:13,760 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.590909090909092) internal successors, (189), 21 states have internal predecessors, (189), 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 100 [2023-12-25 10:00:13,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:13,768 INFO L225 Difference]: With dead ends: 4416 [2023-12-25 10:00:13,769 INFO L226 Difference]: Without dead ends: 3670 [2023-12-25 10:00:13,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1418 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1336, Invalid=4516, Unknown=0, NotChecked=0, Total=5852 [2023-12-25 10:00:13,771 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 4130 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4130 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:13,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4130 Valid, 1403 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-25 10:00:13,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3670 states. [2023-12-25 10:00:13,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3670 to 842. [2023-12-25 10:00:13,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 1.3579072532699168) internal successors, (1142), 841 states have internal predecessors, (1142), 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) [2023-12-25 10:00:13,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1142 transitions. [2023-12-25 10:00:13,793 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1142 transitions. Word has length 100 [2023-12-25 10:00:13,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:13,793 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1142 transitions. [2023-12-25 10:00:13,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.590909090909092) internal successors, (189), 21 states have internal predecessors, (189), 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) [2023-12-25 10:00:13,793 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1142 transitions. [2023-12-25 10:00:13,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 10:00:13,794 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:13,794 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:13,799 INFO L540 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 (21)] Forceful destruction successful, exit code 0 [2023-12-25 10:00:13,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 [2023-12-25 10:00:13,997 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:13,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:13,997 INFO L85 PathProgramCache]: Analyzing trace with hash -333076103, now seen corresponding path program 1 times [2023-12-25 10:00:13,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:13,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854998060] [2023-12-25 10:00:13,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:13,998 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 [2023-12-25 10:00:13,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:13,999 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2023-12-25 10:00:13,999 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 (22)] Waiting until timeout for monitored process [2023-12-25 10:00:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:14,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 10:00:14,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:14,757 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:14,758 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:00:15,008 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:15,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:15,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854998060] [2023-12-25 10:00:15,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854998060] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:00:15,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:00:15,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-12-25 10:00:15,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983202450] [2023-12-25 10:00:15,009 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:00:15,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-25 10:00:15,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:15,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-25 10:00:15,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2023-12-25 10:00:15,010 INFO L87 Difference]: Start difference. First operand 842 states and 1142 transitions. Second operand has 24 states, 24 states have (on average 7.625) internal successors, (183), 23 states have internal predecessors, (183), 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) [2023-12-25 10:00:20,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:20,436 INFO L93 Difference]: Finished difference Result 4760 states and 6395 transitions. [2023-12-25 10:00:20,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2023-12-25 10:00:20,436 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.625) internal successors, (183), 23 states have internal predecessors, (183), 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 100 [2023-12-25 10:00:20,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:20,453 INFO L225 Difference]: With dead ends: 4760 [2023-12-25 10:00:20,453 INFO L226 Difference]: Without dead ends: 4014 [2023-12-25 10:00:20,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2979 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1992, Invalid=8310, Unknown=0, NotChecked=0, Total=10302 [2023-12-25 10:00:20,456 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 3250 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3250 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:20,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3250 Valid, 1348 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-25 10:00:20,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4014 states. [2023-12-25 10:00:20,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4014 to 842. [2023-12-25 10:00:20,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 1.3507728894173603) internal successors, (1136), 841 states have internal predecessors, (1136), 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) [2023-12-25 10:00:20,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1136 transitions. [2023-12-25 10:00:20,477 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1136 transitions. Word has length 100 [2023-12-25 10:00:20,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:20,477 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1136 transitions. [2023-12-25 10:00:20,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.625) internal successors, (183), 23 states have internal predecessors, (183), 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) [2023-12-25 10:00:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1136 transitions. [2023-12-25 10:00:20,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 10:00:20,478 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:20,478 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:20,483 INFO L540 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 (22)] Forceful destruction successful, exit code 0 [2023-12-25 10:00:20,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 [2023-12-25 10:00:20,681 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:20,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:20,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1033215526, now seen corresponding path program 1 times [2023-12-25 10:00:20,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:20,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39593363] [2023-12-25 10:00:20,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:20,682 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 [2023-12-25 10:00:20,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:20,683 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2023-12-25 10:00:20,684 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 (23)] Waiting until timeout for monitored process [2023-12-25 10:00:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:20,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:00:20,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:21,302 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:21,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:00:21,538 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:21,539 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:21,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39593363] [2023-12-25 10:00:21,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39593363] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:00:21,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:00:21,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 10:00:21,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616137119] [2023-12-25 10:00:21,539 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:00:21,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 10:00:21,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:21,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 10:00:21,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 10:00:21,541 INFO L87 Difference]: Start difference. First operand 842 states and 1136 transitions. Second operand has 16 states, 16 states have (on average 12.1875) internal successors, (195), 15 states have internal predecessors, (195), 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) [2023-12-25 10:00:24,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:24,136 INFO L93 Difference]: Finished difference Result 3574 states and 4837 transitions. [2023-12-25 10:00:24,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-25 10:00:24,137 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.1875) internal successors, (195), 15 states have internal predecessors, (195), 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 101 [2023-12-25 10:00:24,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:24,142 INFO L225 Difference]: With dead ends: 3574 [2023-12-25 10:00:24,142 INFO L226 Difference]: Without dead ends: 2828 [2023-12-25 10:00:24,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1306 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1229, Invalid=3601, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 10:00:24,145 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 1401 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:24,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 1001 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 10:00:24,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2023-12-25 10:00:24,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 884. [2023-12-25 10:00:24,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 883 states have (on average 1.3408833522083805) internal successors, (1184), 883 states have internal predecessors, (1184), 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) [2023-12-25 10:00:24,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1184 transitions. [2023-12-25 10:00:24,163 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1184 transitions. Word has length 101 [2023-12-25 10:00:24,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:24,163 INFO L495 AbstractCegarLoop]: Abstraction has 884 states and 1184 transitions. [2023-12-25 10:00:24,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.1875) internal successors, (195), 15 states have internal predecessors, (195), 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) [2023-12-25 10:00:24,163 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1184 transitions. [2023-12-25 10:00:24,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 10:00:24,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:24,164 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:24,169 INFO L540 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 (23)] Forceful destruction successful, exit code 0 [2023-12-25 10:00:24,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 [2023-12-25 10:00:24,367 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:24,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:24,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1348262702, now seen corresponding path program 1 times [2023-12-25 10:00:24,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:24,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529152641] [2023-12-25 10:00:24,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:24,368 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 [2023-12-25 10:00:24,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:24,369 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2023-12-25 10:00:24,380 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 (24)] Waiting until timeout for monitored process [2023-12-25 10:00:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:24,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:00:24,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:24,486 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:24,486 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:00:24,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:24,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529152641] [2023-12-25 10:00:24,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529152641] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:00:24,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:00:24,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:00:24,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713186580] [2023-12-25 10:00:24,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:00:24,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:00:24,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:24,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:00:24,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:00:24,487 INFO L87 Difference]: Start difference. First operand 884 states and 1184 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2023-12-25 10:00:24,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:24,498 INFO L93 Difference]: Finished difference Result 1281 states and 1723 transitions. [2023-12-25 10:00:24,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:00:24,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 102 [2023-12-25 10:00:24,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:24,500 INFO L225 Difference]: With dead ends: 1281 [2023-12-25 10:00:24,500 INFO L226 Difference]: Without dead ends: 493 [2023-12-25 10:00:24,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:00:24,501 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 53 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:24,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 209 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:00:24,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2023-12-25 10:00:24,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 491. [2023-12-25 10:00:24,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 490 states have (on average 1.2897959183673469) internal successors, (632), 490 states have internal predecessors, (632), 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) [2023-12-25 10:00:24,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 632 transitions. [2023-12-25 10:00:24,507 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 632 transitions. Word has length 102 [2023-12-25 10:00:24,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:24,507 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 632 transitions. [2023-12-25 10:00:24,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2023-12-25 10:00:24,507 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 632 transitions. [2023-12-25 10:00:24,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 10:00:24,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:24,508 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:24,513 INFO L540 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 (24)] Forceful destruction successful, exit code 0 [2023-12-25 10:00:24,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 [2023-12-25 10:00:24,711 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:24,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:24,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1246415762, now seen corresponding path program 1 times [2023-12-25 10:00:24,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:24,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499791708] [2023-12-25 10:00:24,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:24,712 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 [2023-12-25 10:00:24,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:24,713 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2023-12-25 10:00:24,720 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 (25)] Waiting until timeout for monitored process [2023-12-25 10:00:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:24,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:00:24,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:25,059 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 10:00:25,059 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:00:25,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:25,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499791708] [2023-12-25 10:00:25,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499791708] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:00:25,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:00:25,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 10:00:25,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006758101] [2023-12-25 10:00:25,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:00:25,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:00:25,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:25,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:00:25,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:00:25,061 INFO L87 Difference]: Start difference. First operand 491 states and 632 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-25 10:00:25,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:25,115 INFO L93 Difference]: Finished difference Result 1023 states and 1344 transitions. [2023-12-25 10:00:25,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:00:25,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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 102 [2023-12-25 10:00:25,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:25,118 INFO L225 Difference]: With dead ends: 1023 [2023-12-25 10:00:25,118 INFO L226 Difference]: Without dead ends: 890 [2023-12-25 10:00:25,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:00:25,119 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 171 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:25,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 403 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:00:25,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2023-12-25 10:00:25,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 753. [2023-12-25 10:00:25,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 752 states have (on average 1.2872340425531914) internal successors, (968), 752 states have internal predecessors, (968), 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) [2023-12-25 10:00:25,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 968 transitions. [2023-12-25 10:00:25,126 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 968 transitions. Word has length 102 [2023-12-25 10:00:25,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:25,126 INFO L495 AbstractCegarLoop]: Abstraction has 753 states and 968 transitions. [2023-12-25 10:00:25,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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) [2023-12-25 10:00:25,126 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 968 transitions. [2023-12-25 10:00:25,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 10:00:25,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:25,127 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:25,134 INFO L540 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 (25)] Forceful destruction successful, exit code 0 [2023-12-25 10:00:25,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 [2023-12-25 10:00:25,330 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:25,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:25,331 INFO L85 PathProgramCache]: Analyzing trace with hash 821285902, now seen corresponding path program 1 times [2023-12-25 10:00:25,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:25,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1061991507] [2023-12-25 10:00:25,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:25,331 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 [2023-12-25 10:00:25,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:25,332 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2023-12-25 10:00:25,333 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 (26)] Waiting until timeout for monitored process [2023-12-25 10:00:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:25,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:00:25,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:25,650 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 10:00:25,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:00:25,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:25,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1061991507] [2023-12-25 10:00:25,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1061991507] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:00:25,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:00:25,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 10:00:25,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507781835] [2023-12-25 10:00:25,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:00:25,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:00:25,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:25,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:00:25,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:00:25,652 INFO L87 Difference]: Start difference. First operand 753 states and 968 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2023-12-25 10:00:25,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:25,703 INFO L93 Difference]: Finished difference Result 1154 states and 1512 transitions. [2023-12-25 10:00:25,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:00:25,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 102 [2023-12-25 10:00:25,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:25,705 INFO L225 Difference]: With dead ends: 1154 [2023-12-25 10:00:25,705 INFO L226 Difference]: Without dead ends: 759 [2023-12-25 10:00:25,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:00:25,707 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 167 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:25,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 403 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:00:25,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2023-12-25 10:00:25,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 622. [2023-12-25 10:00:25,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 621 states have (on average 1.2689210950080516) internal successors, (788), 621 states have internal predecessors, (788), 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) [2023-12-25 10:00:25,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 788 transitions. [2023-12-25 10:00:25,718 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 788 transitions. Word has length 102 [2023-12-25 10:00:25,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:25,718 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 788 transitions. [2023-12-25 10:00:25,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2023-12-25 10:00:25,718 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 788 transitions. [2023-12-25 10:00:25,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 10:00:25,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:25,720 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:25,725 INFO L540 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 (26)] Forceful destruction successful, exit code 0 [2023-12-25 10:00:25,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 [2023-12-25 10:00:25,923 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:25,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:25,924 INFO L85 PathProgramCache]: Analyzing trace with hash -391892911, now seen corresponding path program 1 times [2023-12-25 10:00:25,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:25,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861789656] [2023-12-25 10:00:25,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:25,924 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 [2023-12-25 10:00:25,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:25,925 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2023-12-25 10:00:25,927 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 (27)] Waiting until timeout for monitored process [2023-12-25 10:00:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:26,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:00:26,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:26,273 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 10:00:26,273 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:00:26,274 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:26,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861789656] [2023-12-25 10:00:26,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861789656] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:00:26,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:00:26,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 10:00:26,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547431706] [2023-12-25 10:00:26,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:00:26,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:00:26,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:26,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:00:26,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:00:26,278 INFO L87 Difference]: Start difference. First operand 622 states and 788 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2023-12-25 10:00:26,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:00:26,322 INFO L93 Difference]: Finished difference Result 1023 states and 1332 transitions. [2023-12-25 10:00:26,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:00:26,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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 102 [2023-12-25 10:00:26,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:00:26,325 INFO L225 Difference]: With dead ends: 1023 [2023-12-25 10:00:26,325 INFO L226 Difference]: Without dead ends: 890 [2023-12-25 10:00:26,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:00:26,325 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 170 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:00:26,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 407 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:00:26,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2023-12-25 10:00:26,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 753. [2023-12-25 10:00:26,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 752 states have (on average 1.2712765957446808) internal successors, (956), 752 states have internal predecessors, (956), 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) [2023-12-25 10:00:26,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 956 transitions. [2023-12-25 10:00:26,332 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 956 transitions. Word has length 102 [2023-12-25 10:00:26,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:00:26,332 INFO L495 AbstractCegarLoop]: Abstraction has 753 states and 956 transitions. [2023-12-25 10:00:26,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2023-12-25 10:00:26,333 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 956 transitions. [2023-12-25 10:00:26,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 10:00:26,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:00:26,333 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:00:26,338 INFO L540 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 (27)] Forceful destruction successful, exit code 0 [2023-12-25 10:00:26,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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 [2023-12-25 10:00:26,536 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:00:26,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:00:26,537 INFO L85 PathProgramCache]: Analyzing trace with hash 370287225, now seen corresponding path program 1 times [2023-12-25 10:00:26,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:00:26,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829150784] [2023-12-25 10:00:26,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:00:26,537 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 [2023-12-25 10:00:26,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:00:26,538 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2023-12-25 10:00:26,538 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 (28)] Waiting until timeout for monitored process [2023-12-25 10:00:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:00:26,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-25 10:00:26,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:00:27,704 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:27,704 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:00:28,437 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:00:28,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:00:28,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829150784] [2023-12-25 10:00:28,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829150784] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:00:28,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:00:28,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17] total 34 [2023-12-25 10:00:28,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577774845] [2023-12-25 10:00:28,438 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:00:28,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-25 10:00:28,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:00:28,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-25 10:00:28,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=994, Unknown=0, NotChecked=0, Total=1122 [2023-12-25 10:00:28,439 INFO L87 Difference]: Start difference. First operand 753 states and 956 transitions. Second operand has 34 states, 34 states have (on average 5.794117647058823) internal successors, (197), 34 states have internal predecessors, (197), 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) [2023-12-25 10:01:26,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:01:26,121 INFO L93 Difference]: Finished difference Result 25746 states and 32800 transitions. [2023-12-25 10:01:26,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 457 states. [2023-12-25 10:01:26,121 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.794117647058823) internal successors, (197), 34 states have internal predecessors, (197), 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 103 [2023-12-25 10:01:26,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:01:26,170 INFO L225 Difference]: With dead ends: 25746 [2023-12-25 10:01:26,171 INFO L226 Difference]: Without dead ends: 25351 [2023-12-25 10:01:26,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 653 GetRequests, 171 SyntacticMatches, 1 SemanticMatches, 481 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102248 ImplicationChecksByTransitivity, 51.2s TimeCoverageRelationStatistics Valid=19405, Invalid=213401, Unknown=0, NotChecked=0, Total=232806 [2023-12-25 10:01:26,197 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 6783 mSDsluCounter, 12493 mSDsCounter, 0 mSdLazyCounter, 6342 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6783 SdHoareTripleChecker+Valid, 13253 SdHoareTripleChecker+Invalid, 6563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 6342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-25 10:01:26,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6783 Valid, 13253 Invalid, 6563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 6342 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-12-25 10:01:26,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25351 states. [2023-12-25 10:01:26,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25351 to 6585. [2023-12-25 10:01:26,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6585 states, 6584 states have (on average 1.286300121506683) internal successors, (8469), 6584 states have internal predecessors, (8469), 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) [2023-12-25 10:01:26,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6585 states to 6585 states and 8469 transitions. [2023-12-25 10:01:26,398 INFO L78 Accepts]: Start accepts. Automaton has 6585 states and 8469 transitions. Word has length 103 [2023-12-25 10:01:26,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:01:26,398 INFO L495 AbstractCegarLoop]: Abstraction has 6585 states and 8469 transitions. [2023-12-25 10:01:26,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.794117647058823) internal successors, (197), 34 states have internal predecessors, (197), 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) [2023-12-25 10:01:26,399 INFO L276 IsEmpty]: Start isEmpty. Operand 6585 states and 8469 transitions. [2023-12-25 10:01:26,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 10:01:26,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:01:26,400 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:01:26,406 INFO L540 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 (28)] Forceful destruction successful, exit code 0 [2023-12-25 10:01:26,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /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 [2023-12-25 10:01:26,604 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:01:26,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:01:26,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1090691830, now seen corresponding path program 1 times [2023-12-25 10:01:26,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:01:26,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658510774] [2023-12-25 10:01:26,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:01:26,605 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 [2023-12-25 10:01:26,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:01:26,606 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2023-12-25 10:01:26,607 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 (29)] Waiting until timeout for monitored process [2023-12-25 10:01:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:01:26,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 10:01:26,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:01:27,346 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:01:27,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:01:27,598 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:01:27,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:01:27,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658510774] [2023-12-25 10:01:27,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658510774] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:01:27,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:01:27,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2023-12-25 10:01:27,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785300659] [2023-12-25 10:01:27,599 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:01:27,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-25 10:01:27,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:01:27,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-25 10:01:27,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-12-25 10:01:27,600 INFO L87 Difference]: Start difference. First operand 6585 states and 8469 transitions. Second operand has 21 states, 21 states have (on average 9.19047619047619) internal successors, (193), 21 states have internal predecessors, (193), 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) [2023-12-25 10:01:32,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:01:32,586 INFO L93 Difference]: Finished difference Result 32846 states and 42074 transitions. [2023-12-25 10:01:32,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-12-25 10:01:32,587 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.19047619047619) internal successors, (193), 21 states have internal predecessors, (193), 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 103 [2023-12-25 10:01:32,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:01:32,616 INFO L225 Difference]: With dead ends: 32846 [2023-12-25 10:01:32,617 INFO L226 Difference]: Without dead ends: 27486 [2023-12-25 10:01:32,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1441 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1410, Invalid=4596, Unknown=0, NotChecked=0, Total=6006 [2023-12-25 10:01:32,628 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 2429 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2429 SdHoareTripleChecker+Valid, 2446 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 10:01:32,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2429 Valid, 2446 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 10:01:32,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27486 states. [2023-12-25 10:01:32,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27486 to 9751. [2023-12-25 10:01:32,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9751 states, 9750 states have (on average 1.2827692307692307) internal successors, (12507), 9750 states have internal predecessors, (12507), 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) [2023-12-25 10:01:32,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9751 states to 9751 states and 12507 transitions. [2023-12-25 10:01:32,819 INFO L78 Accepts]: Start accepts. Automaton has 9751 states and 12507 transitions. Word has length 103 [2023-12-25 10:01:32,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:01:32,819 INFO L495 AbstractCegarLoop]: Abstraction has 9751 states and 12507 transitions. [2023-12-25 10:01:32,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.19047619047619) internal successors, (193), 21 states have internal predecessors, (193), 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) [2023-12-25 10:01:32,819 INFO L276 IsEmpty]: Start isEmpty. Operand 9751 states and 12507 transitions. [2023-12-25 10:01:32,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 10:01:32,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:01:32,822 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:01:32,830 INFO L540 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 (29)] Forceful destruction successful, exit code 0 [2023-12-25 10:01:33,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 [2023-12-25 10:01:33,025 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:01:33,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:01:33,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1031781083, now seen corresponding path program 1 times [2023-12-25 10:01:33,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:01:33,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520792805] [2023-12-25 10:01:33,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:01:33,026 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 [2023-12-25 10:01:33,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:01:33,027 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2023-12-25 10:01:33,027 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 (30)] Waiting until timeout for monitored process [2023-12-25 10:01:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:01:33,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 10:01:33,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:01:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:01:33,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:01:33,785 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:01:33,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:01:33,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520792805] [2023-12-25 10:01:33,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520792805] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:01:33,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:01:33,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2023-12-25 10:01:33,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586147088] [2023-12-25 10:01:33,786 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:01:33,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-25 10:01:33,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:01:33,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-25 10:01:33,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2023-12-25 10:01:33,787 INFO L87 Difference]: Start difference. First operand 9751 states and 12507 transitions. Second operand has 19 states, 19 states have (on average 9.789473684210526) internal successors, (186), 19 states have internal predecessors, (186), 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) [2023-12-25 10:01:35,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:01:35,154 INFO L93 Difference]: Finished difference Result 31135 states and 40014 transitions. [2023-12-25 10:01:35,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-25 10:01:35,155 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 9.789473684210526) internal successors, (186), 19 states have internal predecessors, (186), 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 103 [2023-12-25 10:01:35,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:01:35,206 INFO L225 Difference]: With dead ends: 31135 [2023-12-25 10:01:35,206 INFO L226 Difference]: Without dead ends: 25293 [2023-12-25 10:01:35,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=430, Invalid=1462, Unknown=0, NotChecked=0, Total=1892 [2023-12-25 10:01:35,212 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 1450 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:01:35,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1450 Valid, 2233 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 10:01:35,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25293 states. [2023-12-25 10:01:35,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25293 to 12722. [2023-12-25 10:01:35,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12722 states, 12721 states have (on average 1.2802452637371275) internal successors, (16286), 12721 states have internal predecessors, (16286), 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) [2023-12-25 10:01:35,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12722 states to 12722 states and 16286 transitions. [2023-12-25 10:01:35,383 INFO L78 Accepts]: Start accepts. Automaton has 12722 states and 16286 transitions. Word has length 103 [2023-12-25 10:01:35,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:01:35,383 INFO L495 AbstractCegarLoop]: Abstraction has 12722 states and 16286 transitions. [2023-12-25 10:01:35,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.789473684210526) internal successors, (186), 19 states have internal predecessors, (186), 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) [2023-12-25 10:01:35,384 INFO L276 IsEmpty]: Start isEmpty. Operand 12722 states and 16286 transitions. [2023-12-25 10:01:35,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 10:01:35,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:01:35,387 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:01:35,392 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 (30)] Ended with exit code 0 [2023-12-25 10:01:35,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /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 [2023-12-25 10:01:35,589 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:01:35,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:01:35,590 INFO L85 PathProgramCache]: Analyzing trace with hash 901802335, now seen corresponding path program 1 times [2023-12-25 10:01:35,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:01:35,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946588185] [2023-12-25 10:01:35,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:01:35,590 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 [2023-12-25 10:01:35,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:01:35,591 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2023-12-25 10:01:35,592 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 (31)] Waiting until timeout for monitored process [2023-12-25 10:01:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:01:35,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-25 10:01:35,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:01:37,772 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:01:37,772 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:01:38,690 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:01:38,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:01:38,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946588185] [2023-12-25 10:01:38,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946588185] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:01:38,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:01:38,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 17] total 37 [2023-12-25 10:01:38,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700967581] [2023-12-25 10:01:38,691 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:01:38,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-12-25 10:01:38,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:01:38,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-12-25 10:01:38,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1161, Unknown=0, NotChecked=0, Total=1332 [2023-12-25 10:01:38,692 INFO L87 Difference]: Start difference. First operand 12722 states and 16286 transitions. Second operand has 37 states, 37 states have (on average 5.324324324324325) internal successors, (197), 37 states have internal predecessors, (197), 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) [2023-12-25 10:02:41,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:02:41,475 INFO L93 Difference]: Finished difference Result 115796 states and 147368 transitions. [2023-12-25 10:02:41,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 321 states. [2023-12-25 10:02:41,475 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 5.324324324324325) internal successors, (197), 37 states have internal predecessors, (197), 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 103 [2023-12-25 10:02:41,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:02:41,596 INFO L225 Difference]: With dead ends: 115796 [2023-12-25 10:02:41,596 INFO L226 Difference]: Without dead ends: 113692 [2023-12-25 10:02:41,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 351 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52787 ImplicationChecksByTransitivity, 54.0s TimeCoverageRelationStatistics Valid=14233, Invalid=110023, Unknown=0, NotChecked=0, Total=124256 [2023-12-25 10:02:41,629 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 6390 mSDsluCounter, 9159 mSDsCounter, 0 mSdLazyCounter, 6657 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6390 SdHoareTripleChecker+Valid, 9775 SdHoareTripleChecker+Invalid, 6751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 6657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:02:41,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6390 Valid, 9775 Invalid, 6751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 6657 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2023-12-25 10:02:41,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113692 states. [2023-12-25 10:02:42,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113692 to 30650. [2023-12-25 10:02:42,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30650 states, 30649 states have (on average 1.2872524389050213) internal successors, (39453), 30649 states have internal predecessors, (39453), 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) [2023-12-25 10:02:42,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30650 states to 30650 states and 39453 transitions. [2023-12-25 10:02:42,540 INFO L78 Accepts]: Start accepts. Automaton has 30650 states and 39453 transitions. Word has length 103 [2023-12-25 10:02:42,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:02:42,540 INFO L495 AbstractCegarLoop]: Abstraction has 30650 states and 39453 transitions. [2023-12-25 10:02:42,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.324324324324325) internal successors, (197), 37 states have internal predecessors, (197), 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) [2023-12-25 10:02:42,541 INFO L276 IsEmpty]: Start isEmpty. Operand 30650 states and 39453 transitions. [2023-12-25 10:02:42,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 10:02:42,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:02:42,545 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:02:42,548 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 (31)] Ended with exit code 0 [2023-12-25 10:02:42,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /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 [2023-12-25 10:02:42,748 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:02:42,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:02:42,749 INFO L85 PathProgramCache]: Analyzing trace with hash 173450493, now seen corresponding path program 1 times [2023-12-25 10:02:42,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:02:42,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687969471] [2023-12-25 10:02:42,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:02:42,749 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 [2023-12-25 10:02:42,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:02:42,750 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2023-12-25 10:02:42,751 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 (32)] Waiting until timeout for monitored process [2023-12-25 10:02:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:02:42,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-25 10:02:42,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:02:44,790 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:02:44,790 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:02:45,695 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:02:45,696 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:02:45,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687969471] [2023-12-25 10:02:45,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687969471] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:02:45,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:02:45,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 19] total 38 [2023-12-25 10:02:45,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593584792] [2023-12-25 10:02:45,696 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:02:45,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-25 10:02:45,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:02:45,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-25 10:02:45,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1231, Unknown=0, NotChecked=0, Total=1406 [2023-12-25 10:02:45,697 INFO L87 Difference]: Start difference. First operand 30650 states and 39453 transitions. Second operand has 38 states, 38 states have (on average 5.184210526315789) internal successors, (197), 38 states have internal predecessors, (197), 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) [2023-12-25 10:06:10,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:06:10,759 INFO L93 Difference]: Finished difference Result 104291 states and 132738 transitions. [2023-12-25 10:06:10,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 627 states. [2023-12-25 10:06:10,760 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 5.184210526315789) internal successors, (197), 38 states have internal predecessors, (197), 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 103 [2023-12-25 10:06:10,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:06:10,866 INFO L225 Difference]: With dead ends: 104291 [2023-12-25 10:06:10,866 INFO L226 Difference]: Without dead ends: 102538 [2023-12-25 10:06:10,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 657 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201846 ImplicationChecksByTransitivity, 192.5s TimeCoverageRelationStatistics Valid=36304, Invalid=397318, Unknown=0, NotChecked=0, Total=433622 [2023-12-25 10:06:10,903 INFO L413 NwaCegarLoop]: 699 mSDtfsCounter, 9463 mSDsluCounter, 9545 mSDsCounter, 0 mSdLazyCounter, 7132 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9463 SdHoareTripleChecker+Valid, 10244 SdHoareTripleChecker+Invalid, 7295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 7132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-12-25 10:06:10,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9463 Valid, 10244 Invalid, 7295 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [163 Valid, 7132 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2023-12-25 10:06:10,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102538 states. [2023-12-25 10:06:11,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102538 to 38359. [2023-12-25 10:06:11,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38359 states, 38358 states have (on average 1.2889097450336304) internal successors, (49440), 38358 states have internal predecessors, (49440), 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) [2023-12-25 10:06:11,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38359 states to 38359 states and 49440 transitions. [2023-12-25 10:06:11,821 INFO L78 Accepts]: Start accepts. Automaton has 38359 states and 49440 transitions. Word has length 103 [2023-12-25 10:06:11,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:06:11,821 INFO L495 AbstractCegarLoop]: Abstraction has 38359 states and 49440 transitions. [2023-12-25 10:06:11,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 5.184210526315789) internal successors, (197), 38 states have internal predecessors, (197), 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) [2023-12-25 10:06:11,822 INFO L276 IsEmpty]: Start isEmpty. Operand 38359 states and 49440 transitions. [2023-12-25 10:06:11,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 10:06:11,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:06:11,827 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:06:11,830 INFO L540 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 (32)] Forceful destruction successful, exit code 0 [2023-12-25 10:06:12,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /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 [2023-12-25 10:06:12,030 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:06:12,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:06:12,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1859614591, now seen corresponding path program 1 times [2023-12-25 10:06:12,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:06:12,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405219502] [2023-12-25 10:06:12,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:06:12,031 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 [2023-12-25 10:06:12,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:06:12,032 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2023-12-25 10:06:12,032 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 (33)] Waiting until timeout for monitored process [2023-12-25 10:06:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:06:12,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:06:12,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:06:12,132 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 10:06:12,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:06:12,132 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:06:12,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405219502] [2023-12-25 10:06:12,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405219502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:06:12,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:06:12,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:06:12,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381922748] [2023-12-25 10:06:12,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:06:12,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:06:12,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:06:12,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:06:12,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:06:12,133 INFO L87 Difference]: Start difference. First operand 38359 states and 49440 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2023-12-25 10:06:12,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:06:12,271 INFO L93 Difference]: Finished difference Result 61115 states and 78909 transitions. [2023-12-25 10:06:12,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:06:12,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 104 [2023-12-25 10:06:12,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:06:12,293 INFO L225 Difference]: With dead ends: 61115 [2023-12-25 10:06:12,294 INFO L226 Difference]: Without dead ends: 23203 [2023-12-25 10:06:12,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:06:12,319 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 81 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:06:12,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 101 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:06:12,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23203 states. [2023-12-25 10:06:12,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23203 to 23051. [2023-12-25 10:06:12,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23051 states, 23050 states have (on average 1.2738394793926247) internal successors, (29362), 23050 states have internal predecessors, (29362), 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) [2023-12-25 10:06:12,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23051 states to 23051 states and 29362 transitions. [2023-12-25 10:06:12,653 INFO L78 Accepts]: Start accepts. Automaton has 23051 states and 29362 transitions. Word has length 104 [2023-12-25 10:06:12,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:06:12,653 INFO L495 AbstractCegarLoop]: Abstraction has 23051 states and 29362 transitions. [2023-12-25 10:06:12,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2023-12-25 10:06:12,653 INFO L276 IsEmpty]: Start isEmpty. Operand 23051 states and 29362 transitions. [2023-12-25 10:06:12,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 10:06:12,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:06:12,656 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:06:12,659 INFO L540 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 (33)] Forceful destruction successful, exit code 0 [2023-12-25 10:06:12,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /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 [2023-12-25 10:06:12,857 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:06:12,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:06:12,857 INFO L85 PathProgramCache]: Analyzing trace with hash 331856307, now seen corresponding path program 1 times [2023-12-25 10:06:12,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:06:12,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062925499] [2023-12-25 10:06:12,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:06:12,858 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 [2023-12-25 10:06:12,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:06:12,859 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2023-12-25 10:06:12,859 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 (34)] Waiting until timeout for monitored process [2023-12-25 10:06:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:06:12,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:06:12,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:06:13,041 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 10:06:13,041 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:06:13,153 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 10:06:13,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:06:13,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062925499] [2023-12-25 10:06:13,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062925499] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:06:13,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:06:13,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-25 10:06:13,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140398237] [2023-12-25 10:06:13,154 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:06:13,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:06:13,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:06:13,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:06:13,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:06:13,155 INFO L87 Difference]: Start difference. First operand 23051 states and 29362 transitions. Second operand has 8 states, 8 states have (on average 24.875) internal successors, (199), 8 states have internal predecessors, (199), 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) [2023-12-25 10:06:13,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:06:13,399 INFO L93 Difference]: Finished difference Result 63467 states and 79925 transitions. [2023-12-25 10:06:13,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 10:06:13,399 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.875) internal successors, (199), 8 states have internal predecessors, (199), 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 104 [2023-12-25 10:06:13,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:06:13,440 INFO L225 Difference]: With dead ends: 63467 [2023-12-25 10:06:13,440 INFO L226 Difference]: Without dead ends: 41088 [2023-12-25 10:06:13,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:06:13,474 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 127 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:06:13,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 570 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:06:13,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41088 states. [2023-12-25 10:06:13,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41088 to 34177. [2023-12-25 10:06:13,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34177 states, 34176 states have (on average 1.2238998127340823) internal successors, (41828), 34176 states have internal predecessors, (41828), 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) [2023-12-25 10:06:13,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34177 states to 34177 states and 41828 transitions. [2023-12-25 10:06:13,955 INFO L78 Accepts]: Start accepts. Automaton has 34177 states and 41828 transitions. Word has length 104 [2023-12-25 10:06:13,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:06:13,955 INFO L495 AbstractCegarLoop]: Abstraction has 34177 states and 41828 transitions. [2023-12-25 10:06:13,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.875) internal successors, (199), 8 states have internal predecessors, (199), 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) [2023-12-25 10:06:13,955 INFO L276 IsEmpty]: Start isEmpty. Operand 34177 states and 41828 transitions. [2023-12-25 10:06:13,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 10:06:13,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:06:13,958 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:06:13,960 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 (34)] Ended with exit code 0 [2023-12-25 10:06:14,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /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 [2023-12-25 10:06:14,159 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:06:14,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:06:14,160 INFO L85 PathProgramCache]: Analyzing trace with hash 914302803, now seen corresponding path program 1 times [2023-12-25 10:06:14,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:06:14,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1254573829] [2023-12-25 10:06:14,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:06:14,161 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 [2023-12-25 10:06:14,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:06:14,162 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2023-12-25 10:06:14,162 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 (35)] Waiting until timeout for monitored process [2023-12-25 10:06:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:06:14,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 10:06:14,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:06:15,693 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:06:15,693 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:06:16,104 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:06:16,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:06:16,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1254573829] [2023-12-25 10:06:16,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1254573829] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:06:16,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:06:16,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 29 [2023-12-25 10:06:16,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843321970] [2023-12-25 10:06:16,104 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:06:16,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-25 10:06:16,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:06:16,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-25 10:06:16,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=711, Unknown=0, NotChecked=0, Total=812 [2023-12-25 10:06:16,105 INFO L87 Difference]: Start difference. First operand 34177 states and 41828 transitions. Second operand has 29 states, 29 states have (on average 6.482758620689655) internal successors, (188), 29 states have internal predecessors, (188), 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) [2023-12-25 10:06:34,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:06:34,123 INFO L93 Difference]: Finished difference Result 72262 states and 88044 transitions. [2023-12-25 10:06:34,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2023-12-25 10:06:34,125 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.482758620689655) internal successors, (188), 29 states have internal predecessors, (188), 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 104 [2023-12-25 10:06:34,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:06:34,182 INFO L225 Difference]: With dead ends: 72262 [2023-12-25 10:06:34,182 INFO L226 Difference]: Without dead ends: 58956 [2023-12-25 10:06:34,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3591 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=1471, Invalid=10519, Unknown=0, NotChecked=0, Total=11990 [2023-12-25 10:06:34,202 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2783 mSDsluCounter, 7675 mSDsCounter, 0 mSdLazyCounter, 2803 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2783 SdHoareTripleChecker+Valid, 8262 SdHoareTripleChecker+Invalid, 2818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-25 10:06:34,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2783 Valid, 8262 Invalid, 2818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2803 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-25 10:06:34,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58956 states. [2023-12-25 10:06:34,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58956 to 35911. [2023-12-25 10:06:34,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35911 states, 35910 states have (on average 1.219103313840156) internal successors, (43778), 35910 states have internal predecessors, (43778), 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) [2023-12-25 10:06:34,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35911 states to 35911 states and 43778 transitions. [2023-12-25 10:06:34,650 INFO L78 Accepts]: Start accepts. Automaton has 35911 states and 43778 transitions. Word has length 104 [2023-12-25 10:06:34,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:06:34,650 INFO L495 AbstractCegarLoop]: Abstraction has 35911 states and 43778 transitions. [2023-12-25 10:06:34,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.482758620689655) internal successors, (188), 29 states have internal predecessors, (188), 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) [2023-12-25 10:06:34,650 INFO L276 IsEmpty]: Start isEmpty. Operand 35911 states and 43778 transitions. [2023-12-25 10:06:34,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 10:06:34,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:06:34,653 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:06:34,655 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 (35)] Ended with exit code 0 [2023-12-25 10:06:34,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /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 [2023-12-25 10:06:34,854 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:06:34,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:06:34,854 INFO L85 PathProgramCache]: Analyzing trace with hash 354097913, now seen corresponding path program 1 times [2023-12-25 10:06:34,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:06:34,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1447090263] [2023-12-25 10:06:34,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:06:34,855 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 [2023-12-25 10:06:34,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:06:34,856 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2023-12-25 10:06:34,858 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 (36)] Waiting until timeout for monitored process [2023-12-25 10:06:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:06:34,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:06:34,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:06:34,955 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 10:06:34,955 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:06:34,955 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:06:34,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1447090263] [2023-12-25 10:06:34,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1447090263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:06:34,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:06:34,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:06:34,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277818209] [2023-12-25 10:06:34,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:06:34,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:06:34,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:06:34,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:06:34,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:06:34,957 INFO L87 Difference]: Start difference. First operand 35911 states and 43778 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2023-12-25 10:06:35,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:06:35,097 INFO L93 Difference]: Finished difference Result 62118 states and 76039 transitions. [2023-12-25 10:06:35,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:06:35,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 104 [2023-12-25 10:06:35,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:06:35,257 INFO L225 Difference]: With dead ends: 62118 [2023-12-25 10:06:35,257 INFO L226 Difference]: Without dead ends: 26893 [2023-12-25 10:06:35,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:06:35,275 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 80 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:06:35,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 120 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:06:35,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26893 states. [2023-12-25 10:06:35,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26893 to 26699. [2023-12-25 10:06:35,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26699 states, 26698 states have (on average 1.2063450445726271) internal successors, (32207), 26698 states have internal predecessors, (32207), 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) [2023-12-25 10:06:35,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26699 states to 26699 states and 32207 transitions. [2023-12-25 10:06:35,573 INFO L78 Accepts]: Start accepts. Automaton has 26699 states and 32207 transitions. Word has length 104 [2023-12-25 10:06:35,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:06:35,573 INFO L495 AbstractCegarLoop]: Abstraction has 26699 states and 32207 transitions. [2023-12-25 10:06:35,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2023-12-25 10:06:35,573 INFO L276 IsEmpty]: Start isEmpty. Operand 26699 states and 32207 transitions. [2023-12-25 10:06:35,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 10:06:35,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:06:35,575 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:06:35,577 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 (36)] Ended with exit code 0 [2023-12-25 10:06:35,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /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 [2023-12-25 10:06:35,775 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:06:35,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:06:35,776 INFO L85 PathProgramCache]: Analyzing trace with hash -2136890981, now seen corresponding path program 1 times [2023-12-25 10:06:35,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:06:35,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907292172] [2023-12-25 10:06:35,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:06:35,776 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 [2023-12-25 10:06:35,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:06:35,777 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2023-12-25 10:06:35,778 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 (37)] Waiting until timeout for monitored process [2023-12-25 10:06:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:06:35,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 10:06:35,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:06:36,042 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:06:36,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:06:36,316 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:06:36,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:06:36,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907292172] [2023-12-25 10:06:36,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907292172] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:06:36,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:06:36,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2023-12-25 10:06:36,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883254767] [2023-12-25 10:06:36,317 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:06:36,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 10:06:36,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:06:36,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 10:06:36,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-25 10:06:36,318 INFO L87 Difference]: Start difference. First operand 26699 states and 32207 transitions. Second operand has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 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) [2023-12-25 10:06:36,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:06:36,934 INFO L93 Difference]: Finished difference Result 59662 states and 71864 transitions. [2023-12-25 10:06:36,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 10:06:36,935 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 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 104 [2023-12-25 10:06:36,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:06:36,982 INFO L225 Difference]: With dead ends: 59662 [2023-12-25 10:06:36,983 INFO L226 Difference]: Without dead ends: 52999 [2023-12-25 10:06:36,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2023-12-25 10:06:36,992 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 582 mSDsluCounter, 1957 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 10:06:36,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 2290 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 10:06:37,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52999 states. [2023-12-25 10:06:37,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52999 to 32872. [2023-12-25 10:06:37,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32872 states, 32871 states have (on average 1.205043959721335) internal successors, (39611), 32871 states have internal predecessors, (39611), 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) [2023-12-25 10:06:37,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32872 states to 32872 states and 39611 transitions. [2023-12-25 10:06:37,465 INFO L78 Accepts]: Start accepts. Automaton has 32872 states and 39611 transitions. Word has length 104 [2023-12-25 10:06:37,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:06:37,465 INFO L495 AbstractCegarLoop]: Abstraction has 32872 states and 39611 transitions. [2023-12-25 10:06:37,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 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) [2023-12-25 10:06:37,466 INFO L276 IsEmpty]: Start isEmpty. Operand 32872 states and 39611 transitions. [2023-12-25 10:06:37,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 10:06:37,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:06:37,468 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:06:37,470 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 (37)] Ended with exit code 0 [2023-12-25 10:06:37,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /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 [2023-12-25 10:06:37,668 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:06:37,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:06:37,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1638980956, now seen corresponding path program 1 times [2023-12-25 10:06:37,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:06:37,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194978178] [2023-12-25 10:06:37,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:06:37,669 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 [2023-12-25 10:06:37,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:06:37,670 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2023-12-25 10:06:37,681 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 (38)] Waiting until timeout for monitored process [2023-12-25 10:06:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:06:37,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:06:37,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:06:37,772 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-25 10:06:37,772 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:06:37,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:06:37,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194978178] [2023-12-25 10:06:37,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194978178] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:06:37,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:06:37,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:06:37,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061638395] [2023-12-25 10:06:37,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:06:37,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:06:37,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:06:37,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:06:37,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:06:37,774 INFO L87 Difference]: Start difference. First operand 32872 states and 39611 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2023-12-25 10:06:37,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:06:37,925 INFO L93 Difference]: Finished difference Result 57715 states and 69839 transitions. [2023-12-25 10:06:37,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:06:37,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 105 [2023-12-25 10:06:37,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:06:37,951 INFO L225 Difference]: With dead ends: 57715 [2023-12-25 10:06:37,952 INFO L226 Difference]: Without dead ends: 25285 [2023-12-25 10:06:37,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:06:37,971 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 76 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:06:37,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 124 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:06:37,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25285 states. [2023-12-25 10:06:38,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25285 to 25276. [2023-12-25 10:06:38,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25276 states, 25275 states have (on average 1.1941839762611275) internal successors, (30183), 25275 states have internal predecessors, (30183), 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) [2023-12-25 10:06:38,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25276 states to 25276 states and 30183 transitions. [2023-12-25 10:06:38,249 INFO L78 Accepts]: Start accepts. Automaton has 25276 states and 30183 transitions. Word has length 105 [2023-12-25 10:06:38,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:06:38,249 INFO L495 AbstractCegarLoop]: Abstraction has 25276 states and 30183 transitions. [2023-12-25 10:06:38,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2023-12-25 10:06:38,249 INFO L276 IsEmpty]: Start isEmpty. Operand 25276 states and 30183 transitions. [2023-12-25 10:06:38,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 10:06:38,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:06:38,250 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:06:38,253 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 (38)] Ended with exit code 0 [2023-12-25 10:06:38,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /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 [2023-12-25 10:06:38,451 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:06:38,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:06:38,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1402678991, now seen corresponding path program 1 times [2023-12-25 10:06:38,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:06:38,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878406016] [2023-12-25 10:06:38,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:06:38,452 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 [2023-12-25 10:06:38,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:06:38,453 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2023-12-25 10:06:38,454 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 (39)] Waiting until timeout for monitored process [2023-12-25 10:06:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:06:38,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 10:06:38,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:06:39,199 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:06:39,200 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:06:39,627 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:06:39,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:06:39,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878406016] [2023-12-25 10:06:39,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878406016] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:06:39,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:06:39,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2023-12-25 10:06:39,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52342032] [2023-12-25 10:06:39,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:06:39,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-25 10:06:39,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:06:39,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-25 10:06:39,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-12-25 10:06:39,629 INFO L87 Difference]: Start difference. First operand 25276 states and 30183 transitions. Second operand has 21 states, 21 states have (on average 9.238095238095237) internal successors, (194), 21 states have internal predecessors, (194), 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) [2023-12-25 10:06:41,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:06:41,686 INFO L93 Difference]: Finished difference Result 42851 states and 50855 transitions. [2023-12-25 10:06:41,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-25 10:06:41,687 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.238095238095237) internal successors, (194), 21 states have internal predecessors, (194), 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 105 [2023-12-25 10:06:41,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:06:41,723 INFO L225 Difference]: With dead ends: 42851 [2023-12-25 10:06:41,724 INFO L226 Difference]: Without dead ends: 39336 [2023-12-25 10:06:41,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=476, Invalid=1594, Unknown=0, NotChecked=0, Total=2070 [2023-12-25 10:06:41,734 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 1025 mSDsluCounter, 3035 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 3423 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 10:06:41,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 3423 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 10:06:41,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39336 states. [2023-12-25 10:06:42,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39336 to 25922. [2023-12-25 10:06:42,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25922 states, 25921 states have (on average 1.193202422746036) internal successors, (30929), 25921 states have internal predecessors, (30929), 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) [2023-12-25 10:06:42,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25922 states to 25922 states and 30929 transitions. [2023-12-25 10:06:42,142 INFO L78 Accepts]: Start accepts. Automaton has 25922 states and 30929 transitions. Word has length 105 [2023-12-25 10:06:42,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:06:42,142 INFO L495 AbstractCegarLoop]: Abstraction has 25922 states and 30929 transitions. [2023-12-25 10:06:42,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.238095238095237) internal successors, (194), 21 states have internal predecessors, (194), 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) [2023-12-25 10:06:42,143 INFO L276 IsEmpty]: Start isEmpty. Operand 25922 states and 30929 transitions. [2023-12-25 10:06:42,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 10:06:42,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:06:42,144 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:06:42,146 INFO L540 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 (39)] Forceful destruction successful, exit code 0 [2023-12-25 10:06:42,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /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 [2023-12-25 10:06:42,345 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:06:42,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:06:42,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1446226161, now seen corresponding path program 1 times [2023-12-25 10:06:42,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:06:42,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690717204] [2023-12-25 10:06:42,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:06:42,346 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 [2023-12-25 10:06:42,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:06:42,347 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2023-12-25 10:06:42,348 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 (40)] Waiting until timeout for monitored process [2023-12-25 10:06:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:06:42,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:06:42,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:06:42,448 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:06:42,448 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:06:42,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:06:42,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690717204] [2023-12-25 10:06:42,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690717204] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:06:42,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:06:42,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:06:42,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586231339] [2023-12-25 10:06:42,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:06:42,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:06:42,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:06:42,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:06:42,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:06:42,449 INFO L87 Difference]: Start difference. First operand 25922 states and 30929 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2023-12-25 10:06:42,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:06:42,509 INFO L93 Difference]: Finished difference Result 33630 states and 39951 transitions. [2023-12-25 10:06:42,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:06:42,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 105 [2023-12-25 10:06:42,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:06:42,515 INFO L225 Difference]: With dead ends: 33630 [2023-12-25 10:06:42,515 INFO L226 Difference]: Without dead ends: 8313 [2023-12-25 10:06:42,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:06:42,525 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 39 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:06:42,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 187 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:06:42,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8313 states. [2023-12-25 10:06:42,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8313 to 8311. [2023-12-25 10:06:42,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8311 states, 8310 states have (on average 1.1477737665463297) internal successors, (9538), 8310 states have internal predecessors, (9538), 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) [2023-12-25 10:06:42,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8311 states to 8311 states and 9538 transitions. [2023-12-25 10:06:42,578 INFO L78 Accepts]: Start accepts. Automaton has 8311 states and 9538 transitions. Word has length 105 [2023-12-25 10:06:42,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:06:42,578 INFO L495 AbstractCegarLoop]: Abstraction has 8311 states and 9538 transitions. [2023-12-25 10:06:42,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2023-12-25 10:06:42,579 INFO L276 IsEmpty]: Start isEmpty. Operand 8311 states and 9538 transitions. [2023-12-25 10:06:42,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 10:06:42,579 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:06:42,579 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:06:42,583 INFO L540 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 (40)] Forceful destruction successful, exit code 0 [2023-12-25 10:06:42,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /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 [2023-12-25 10:06:42,780 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:06:42,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:06:42,780 INFO L85 PathProgramCache]: Analyzing trace with hash -176877688, now seen corresponding path program 1 times [2023-12-25 10:06:42,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:06:42,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857827237] [2023-12-25 10:06:42,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:06:42,781 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 [2023-12-25 10:06:42,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:06:42,782 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2023-12-25 10:06:42,782 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 (41)] Waiting until timeout for monitored process [2023-12-25 10:06:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:06:42,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 10:06:42,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:06:44,015 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:06:44,015 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:06:44,585 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:06:44,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:06:44,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857827237] [2023-12-25 10:06:44,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1857827237] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:06:44,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:06:44,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16] total 33 [2023-12-25 10:06:44,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829969434] [2023-12-25 10:06:44,586 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:06:44,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-25 10:06:44,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:06:44,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-25 10:06:44,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=897, Unknown=0, NotChecked=0, Total=1056 [2023-12-25 10:06:44,587 INFO L87 Difference]: Start difference. First operand 8311 states and 9538 transitions. Second operand has 33 states, 33 states have (on average 6.03030303030303) internal successors, (199), 33 states have internal predecessors, (199), 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) [2023-12-25 10:06:52,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:06:52,803 INFO L93 Difference]: Finished difference Result 15329 states and 17617 transitions. [2023-12-25 10:06:52,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2023-12-25 10:06:52,804 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 6.03030303030303) internal successors, (199), 33 states have internal predecessors, (199), 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 105 [2023-12-25 10:06:52,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:06:52,814 INFO L225 Difference]: With dead ends: 15329 [2023-12-25 10:06:52,814 INFO L226 Difference]: Without dead ends: 13085 [2023-12-25 10:06:52,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5106 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=3087, Invalid=14735, Unknown=0, NotChecked=0, Total=17822 [2023-12-25 10:06:52,819 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 2413 mSDsluCounter, 6116 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2413 SdHoareTripleChecker+Valid, 6568 SdHoareTripleChecker+Invalid, 2440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:06:52,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2413 Valid, 6568 Invalid, 2440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2397 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-25 10:06:52,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13085 states. [2023-12-25 10:06:52,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13085 to 8761. [2023-12-25 10:06:52,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8761 states, 8760 states have (on average 1.15) internal successors, (10074), 8760 states have internal predecessors, (10074), 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) [2023-12-25 10:06:52,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8761 states to 8761 states and 10074 transitions. [2023-12-25 10:06:52,911 INFO L78 Accepts]: Start accepts. Automaton has 8761 states and 10074 transitions. Word has length 105 [2023-12-25 10:06:52,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:06:52,911 INFO L495 AbstractCegarLoop]: Abstraction has 8761 states and 10074 transitions. [2023-12-25 10:06:52,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 6.03030303030303) internal successors, (199), 33 states have internal predecessors, (199), 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) [2023-12-25 10:06:52,912 INFO L276 IsEmpty]: Start isEmpty. Operand 8761 states and 10074 transitions. [2023-12-25 10:06:52,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-25 10:06:52,912 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:06:52,912 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:06:52,915 INFO L540 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 (41)] Forceful destruction successful, exit code 0 [2023-12-25 10:06:53,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /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 [2023-12-25 10:06:53,113 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:06:53,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:06:53,113 INFO L85 PathProgramCache]: Analyzing trace with hash 2023506591, now seen corresponding path program 1 times [2023-12-25 10:06:53,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:06:53,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284110419] [2023-12-25 10:06:53,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:06:53,114 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 [2023-12-25 10:06:53,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:06:53,115 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2023-12-25 10:06:53,115 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 (42)] Waiting until timeout for monitored process [2023-12-25 10:06:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:06:53,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-25 10:06:53,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:06:54,624 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:06:54,624 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:06:55,225 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:06:55,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:06:55,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284110419] [2023-12-25 10:06:55,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284110419] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:06:55,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:06:55,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 33 [2023-12-25 10:06:55,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315720661] [2023-12-25 10:06:55,226 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:06:55,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-25 10:06:55,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:06:55,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-25 10:06:55,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056 [2023-12-25 10:06:55,227 INFO L87 Difference]: Start difference. First operand 8761 states and 10074 transitions. Second operand has 33 states, 33 states have (on average 5.757575757575758) internal successors, (190), 33 states have internal predecessors, (190), 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) [2023-12-25 10:07:13,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:07:13,812 INFO L93 Difference]: Finished difference Result 22971 states and 26861 transitions. [2023-12-25 10:07:13,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2023-12-25 10:07:13,813 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 5.757575757575758) internal successors, (190), 33 states have internal predecessors, (190), 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 106 [2023-12-25 10:07:13,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:07:13,827 INFO L225 Difference]: With dead ends: 22971 [2023-12-25 10:07:13,828 INFO L226 Difference]: Without dead ends: 19864 [2023-12-25 10:07:13,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3001 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=1432, Invalid=9280, Unknown=0, NotChecked=0, Total=10712 [2023-12-25 10:07:13,834 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 2746 mSDsluCounter, 5628 mSDsCounter, 0 mSdLazyCounter, 2199 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2746 SdHoareTripleChecker+Valid, 6021 SdHoareTripleChecker+Invalid, 2231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:07:13,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2746 Valid, 6021 Invalid, 2231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2199 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-25 10:07:13,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19864 states. [2023-12-25 10:07:13,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19864 to 8032. [2023-12-25 10:07:13,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8032 states, 8031 states have (on average 1.150790686091396) internal successors, (9242), 8031 states have internal predecessors, (9242), 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) [2023-12-25 10:07:13,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8032 states to 8032 states and 9242 transitions. [2023-12-25 10:07:13,937 INFO L78 Accepts]: Start accepts. Automaton has 8032 states and 9242 transitions. Word has length 106 [2023-12-25 10:07:13,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:07:13,937 INFO L495 AbstractCegarLoop]: Abstraction has 8032 states and 9242 transitions. [2023-12-25 10:07:13,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 5.757575757575758) internal successors, (190), 33 states have internal predecessors, (190), 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) [2023-12-25 10:07:13,937 INFO L276 IsEmpty]: Start isEmpty. Operand 8032 states and 9242 transitions. [2023-12-25 10:07:13,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-25 10:07:13,940 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:07:13,940 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:07:13,942 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 (42)] Ended with exit code 0 [2023-12-25 10:07:14,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /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 [2023-12-25 10:07:14,140 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:07:14,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:07:14,141 INFO L85 PathProgramCache]: Analyzing trace with hash 892873518, now seen corresponding path program 1 times [2023-12-25 10:07:14,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:07:14,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641887933] [2023-12-25 10:07:14,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:07:14,141 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 [2023-12-25 10:07:14,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:07:14,142 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2023-12-25 10:07:14,143 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 (43)] Waiting until timeout for monitored process [2023-12-25 10:07:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:07:14,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 10:07:14,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:07:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 64 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 10:07:15,131 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:07:15,920 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 34 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:07:15,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:07:15,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641887933] [2023-12-25 10:07:15,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641887933] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:07:15,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:07:15,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18] total 32 [2023-12-25 10:07:15,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034869568] [2023-12-25 10:07:15,920 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:07:15,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-25 10:07:15,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:07:15,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-25 10:07:15,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=830, Unknown=0, NotChecked=0, Total=992 [2023-12-25 10:07:15,921 INFO L87 Difference]: Start difference. First operand 8032 states and 9242 transitions. Second operand has 32 states, 32 states have (on average 8.34375) internal successors, (267), 32 states have internal predecessors, (267), 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) [2023-12-25 10:07:19,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:07:19,775 INFO L93 Difference]: Finished difference Result 12614 states and 14551 transitions. [2023-12-25 10:07:19,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-12-25 10:07:19,776 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.34375) internal successors, (267), 32 states have internal predecessors, (267), 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 151 [2023-12-25 10:07:19,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:07:19,783 INFO L225 Difference]: With dead ends: 12614 [2023-12-25 10:07:19,783 INFO L226 Difference]: Without dead ends: 11410 [2023-12-25 10:07:19,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1965 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1219, Invalid=6613, Unknown=0, NotChecked=0, Total=7832 [2023-12-25 10:07:19,786 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 2182 mSDsluCounter, 5541 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2182 SdHoareTripleChecker+Valid, 5892 SdHoareTripleChecker+Invalid, 1709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 10:07:19,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2182 Valid, 5892 Invalid, 1709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 10:07:19,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11410 states. [2023-12-25 10:07:19,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11410 to 6755. [2023-12-25 10:07:19,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6755 states, 6754 states have (on average 1.1465798045602607) internal successors, (7744), 6754 states have internal predecessors, (7744), 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) [2023-12-25 10:07:19,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6755 states to 6755 states and 7744 transitions. [2023-12-25 10:07:19,836 INFO L78 Accepts]: Start accepts. Automaton has 6755 states and 7744 transitions. Word has length 151 [2023-12-25 10:07:19,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:07:19,837 INFO L495 AbstractCegarLoop]: Abstraction has 6755 states and 7744 transitions. [2023-12-25 10:07:19,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.34375) internal successors, (267), 32 states have internal predecessors, (267), 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) [2023-12-25 10:07:19,837 INFO L276 IsEmpty]: Start isEmpty. Operand 6755 states and 7744 transitions. [2023-12-25 10:07:19,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-25 10:07:19,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:07:19,839 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:07:19,841 INFO L540 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 (43)] Forceful destruction successful, exit code 0 [2023-12-25 10:07:20,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /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 [2023-12-25 10:07:20,039 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:07:20,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:07:20,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1438151026, now seen corresponding path program 1 times [2023-12-25 10:07:20,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:07:20,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696758693] [2023-12-25 10:07:20,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:07:20,041 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 [2023-12-25 10:07:20,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:07:20,042 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2023-12-25 10:07:20,043 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 (44)] Waiting until timeout for monitored process [2023-12-25 10:07:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:07:20,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-25 10:07:20,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:07:21,618 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 16 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:07:21,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:07:23,097 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 16 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:07:23,097 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:07:23,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696758693] [2023-12-25 10:07:23,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696758693] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:07:23,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:07:23,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 49 [2023-12-25 10:07:23,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176475182] [2023-12-25 10:07:23,098 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:07:23,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-12-25 10:07:23,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:07:23,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-12-25 10:07:23,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=2227, Unknown=0, NotChecked=0, Total=2352 [2023-12-25 10:07:23,100 INFO L87 Difference]: Start difference. First operand 6755 states and 7744 transitions. Second operand has 49 states, 49 states have (on average 5.591836734693878) internal successors, (274), 49 states have internal predecessors, (274), 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) [2023-12-25 10:08:01,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:08:01,394 INFO L93 Difference]: Finished difference Result 10789 states and 12368 transitions. [2023-12-25 10:08:01,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 224 states. [2023-12-25 10:08:01,395 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 5.591836734693878) internal successors, (274), 49 states have internal predecessors, (274), 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 152 [2023-12-25 10:08:01,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:08:01,401 INFO L225 Difference]: With dead ends: 10789 [2023-12-25 10:08:01,401 INFO L226 Difference]: Without dead ends: 10246 [2023-12-25 10:08:01,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 254 SyntacticMatches, 2 SemanticMatches, 263 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 23893 ImplicationChecksByTransitivity, 34.2s TimeCoverageRelationStatistics Valid=7443, Invalid=62517, Unknown=0, NotChecked=0, Total=69960 [2023-12-25 10:08:01,405 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 4176 mSDsluCounter, 9881 mSDsCounter, 0 mSdLazyCounter, 5994 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4176 SdHoareTripleChecker+Valid, 10309 SdHoareTripleChecker+Invalid, 6123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 5994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-25 10:08:01,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4176 Valid, 10309 Invalid, 6123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 5994 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-25 10:08:01,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10246 states. [2023-12-25 10:08:01,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10246 to 7614. [2023-12-25 10:08:01,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7614 states, 7613 states have (on average 1.1477735452515434) internal successors, (8738), 7613 states have internal predecessors, (8738), 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) [2023-12-25 10:08:01,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7614 states to 7614 states and 8738 transitions. [2023-12-25 10:08:01,460 INFO L78 Accepts]: Start accepts. Automaton has 7614 states and 8738 transitions. Word has length 152 [2023-12-25 10:08:01,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:08:01,460 INFO L495 AbstractCegarLoop]: Abstraction has 7614 states and 8738 transitions. [2023-12-25 10:08:01,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 5.591836734693878) internal successors, (274), 49 states have internal predecessors, (274), 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) [2023-12-25 10:08:01,460 INFO L276 IsEmpty]: Start isEmpty. Operand 7614 states and 8738 transitions. [2023-12-25 10:08:01,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-25 10:08:01,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:08:01,462 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:08:01,465 INFO L540 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 (44)] Forceful destruction successful, exit code 0 [2023-12-25 10:08:01,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /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 [2023-12-25 10:08:01,663 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:08:01,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:08:01,663 INFO L85 PathProgramCache]: Analyzing trace with hash -570197388, now seen corresponding path program 1 times [2023-12-25 10:08:01,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:08:01,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432878893] [2023-12-25 10:08:01,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:08:01,664 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 [2023-12-25 10:08:01,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:08:01,665 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2023-12-25 10:08:01,667 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 (45)] Waiting until timeout for monitored process [2023-12-25 10:08:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:08:01,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-25 10:08:01,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:08:03,188 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 16 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:08:03,189 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:08:04,616 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 16 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:08:04,616 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:08:04,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432878893] [2023-12-25 10:08:04,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432878893] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:08:04,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:08:04,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 49 [2023-12-25 10:08:04,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318818473] [2023-12-25 10:08:04,616 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:08:04,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-12-25 10:08:04,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:08:04,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-12-25 10:08:04,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=2227, Unknown=0, NotChecked=0, Total=2352 [2023-12-25 10:08:04,618 INFO L87 Difference]: Start difference. First operand 7614 states and 8738 transitions. Second operand has 49 states, 49 states have (on average 5.653061224489796) internal successors, (277), 49 states have internal predecessors, (277), 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) [2023-12-25 10:10:11,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:10:11,911 INFO L93 Difference]: Finished difference Result 18362 states and 21230 transitions. [2023-12-25 10:10:11,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 549 states. [2023-12-25 10:10:11,911 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 5.653061224489796) internal successors, (277), 49 states have internal predecessors, (277), 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 152 [2023-12-25 10:10:11,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:10:11,921 INFO L225 Difference]: With dead ends: 18362 [2023-12-25 10:10:11,921 INFO L226 Difference]: Without dead ends: 16810 [2023-12-25 10:10:11,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 254 SyntacticMatches, 2 SemanticMatches, 589 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 148156 ImplicationChecksByTransitivity, 118.3s TimeCoverageRelationStatistics Valid=24845, Invalid=323845, Unknown=0, NotChecked=0, Total=348690 [2023-12-25 10:10:11,934 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 7224 mSDsluCounter, 19551 mSDsCounter, 0 mSdLazyCounter, 9602 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7224 SdHoareTripleChecker+Valid, 20125 SdHoareTripleChecker+Invalid, 9893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 9602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:10:11,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7224 Valid, 20125 Invalid, 9893 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [291 Valid, 9602 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2023-12-25 10:10:11,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16810 states. [2023-12-25 10:10:12,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16810 to 9765. [2023-12-25 10:10:12,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9765 states, 9764 states have (on average 1.1527038099139697) internal successors, (11255), 9764 states have internal predecessors, (11255), 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) [2023-12-25 10:10:12,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9765 states to 9765 states and 11255 transitions. [2023-12-25 10:10:12,029 INFO L78 Accepts]: Start accepts. Automaton has 9765 states and 11255 transitions. Word has length 152 [2023-12-25 10:10:12,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:10:12,030 INFO L495 AbstractCegarLoop]: Abstraction has 9765 states and 11255 transitions. [2023-12-25 10:10:12,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 5.653061224489796) internal successors, (277), 49 states have internal predecessors, (277), 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) [2023-12-25 10:10:12,030 INFO L276 IsEmpty]: Start isEmpty. Operand 9765 states and 11255 transitions. [2023-12-25 10:10:12,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 10:10:12,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:10:12,032 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:10:12,034 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 (45)] Ended with exit code 0 [2023-12-25 10:10:12,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /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 [2023-12-25 10:10:12,232 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:10:12,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:10:12,233 INFO L85 PathProgramCache]: Analyzing trace with hash 683865997, now seen corresponding path program 1 times [2023-12-25 10:10:12,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:10:12,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227336000] [2023-12-25 10:10:12,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:10:12,233 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 [2023-12-25 10:10:12,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:10:12,234 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2023-12-25 10:10:12,235 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 (46)] Waiting until timeout for monitored process [2023-12-25 10:10:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:10:12,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 10:10:12,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:10:13,077 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 31 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:10:13,077 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:10:13,482 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 31 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:10:13,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:10:13,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227336000] [2023-12-25 10:10:13,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [227336000] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:10:13,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:10:13,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 31 [2023-12-25 10:10:13,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216491152] [2023-12-25 10:10:13,483 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:10:13,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-25 10:10:13,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:10:13,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-25 10:10:13,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2023-12-25 10:10:13,484 INFO L87 Difference]: Start difference. First operand 9765 states and 11255 transitions. Second operand has 31 states, 31 states have (on average 9.193548387096774) internal successors, (285), 31 states have internal predecessors, (285), 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) [2023-12-25 10:10:18,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:10:18,031 INFO L93 Difference]: Finished difference Result 17968 states and 20835 transitions. [2023-12-25 10:10:18,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2023-12-25 10:10:18,031 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 9.193548387096774) internal successors, (285), 31 states have internal predecessors, (285), 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 153 [2023-12-25 10:10:18,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:10:18,040 INFO L225 Difference]: With dead ends: 17968 [2023-12-25 10:10:18,040 INFO L226 Difference]: Without dead ends: 13698 [2023-12-25 10:10:18,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2588 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1471, Invalid=9035, Unknown=0, NotChecked=0, Total=10506 [2023-12-25 10:10:18,043 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 1717 mSDsluCounter, 6279 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 6638 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 10:10:18,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 6638 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 10:10:18,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13698 states. [2023-12-25 10:10:18,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13698 to 9816. [2023-12-25 10:10:18,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9816 states, 9815 states have (on average 1.1495669893020886) internal successors, (11283), 9815 states have internal predecessors, (11283), 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) [2023-12-25 10:10:18,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9816 states to 9816 states and 11283 transitions. [2023-12-25 10:10:18,115 INFO L78 Accepts]: Start accepts. Automaton has 9816 states and 11283 transitions. Word has length 153 [2023-12-25 10:10:18,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:10:18,115 INFO L495 AbstractCegarLoop]: Abstraction has 9816 states and 11283 transitions. [2023-12-25 10:10:18,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 9.193548387096774) internal successors, (285), 31 states have internal predecessors, (285), 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) [2023-12-25 10:10:18,115 INFO L276 IsEmpty]: Start isEmpty. Operand 9816 states and 11283 transitions. [2023-12-25 10:10:18,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 10:10:18,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:10:18,118 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:10:18,123 INFO L540 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 (46)] Forceful destruction successful, exit code 0 [2023-12-25 10:10:18,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /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 [2023-12-25 10:10:18,318 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:10:18,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:10:18,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1266312493, now seen corresponding path program 1 times [2023-12-25 10:10:18,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:10:18,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276393692] [2023-12-25 10:10:18,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:10:18,319 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 [2023-12-25 10:10:18,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:10:18,320 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2023-12-25 10:10:18,321 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 (47)] Waiting until timeout for monitored process [2023-12-25 10:10:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:10:18,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 10:10:18,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:10:18,551 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 74 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 10:10:18,551 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:10:18,732 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 74 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 10:10:18,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:10:18,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276393692] [2023-12-25 10:10:18,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276393692] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:10:18,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:10:18,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-25 10:10:18,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979237535] [2023-12-25 10:10:18,733 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:10:18,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 10:10:18,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:10:18,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 10:10:18,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-25 10:10:18,734 INFO L87 Difference]: Start difference. First operand 9816 states and 11283 transitions. Second operand has 10 states, 10 states have (on average 27.6) internal successors, (276), 10 states have internal predecessors, (276), 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) [2023-12-25 10:10:18,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:10:18,889 INFO L93 Difference]: Finished difference Result 39272 states and 46834 transitions. [2023-12-25 10:10:18,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 10:10:18,889 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 27.6) internal successors, (276), 10 states have internal predecessors, (276), 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 153 [2023-12-25 10:10:18,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:10:18,915 INFO L225 Difference]: With dead ends: 39272 [2023-12-25 10:10:18,915 INFO L226 Difference]: Without dead ends: 29754 [2023-12-25 10:10:18,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-25 10:10:18,925 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 386 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:10:18,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 825 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:10:18,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29754 states. [2023-12-25 10:10:19,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29754 to 29716. [2023-12-25 10:10:19,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29716 states, 29715 states have (on average 1.1243143193673228) internal successors, (33409), 29715 states have internal predecessors, (33409), 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) [2023-12-25 10:10:19,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29716 states to 29716 states and 33409 transitions. [2023-12-25 10:10:19,159 INFO L78 Accepts]: Start accepts. Automaton has 29716 states and 33409 transitions. Word has length 153 [2023-12-25 10:10:19,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:10:19,159 INFO L495 AbstractCegarLoop]: Abstraction has 29716 states and 33409 transitions. [2023-12-25 10:10:19,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.6) internal successors, (276), 10 states have internal predecessors, (276), 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) [2023-12-25 10:10:19,159 INFO L276 IsEmpty]: Start isEmpty. Operand 29716 states and 33409 transitions. [2023-12-25 10:10:19,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 10:10:19,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:10:19,161 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:10:19,164 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 (47)] Ended with exit code 0 [2023-12-25 10:10:19,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /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 [2023-12-25 10:10:19,362 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:10:19,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:10:19,362 INFO L85 PathProgramCache]: Analyzing trace with hash -752860901, now seen corresponding path program 1 times [2023-12-25 10:10:19,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:10:19,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718745558] [2023-12-25 10:10:19,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:10:19,363 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 [2023-12-25 10:10:19,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:10:19,364 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2023-12-25 10:10:19,364 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 (48)] Waiting until timeout for monitored process [2023-12-25 10:10:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:10:19,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 10:10:19,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:10:20,152 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 66 proven. 6 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-25 10:10:20,152 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:10:20,451 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 66 proven. 6 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-25 10:10:20,451 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:10:20,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718745558] [2023-12-25 10:10:20,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718745558] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:10:20,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:10:20,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2023-12-25 10:10:20,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643126776] [2023-12-25 10:10:20,452 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:10:20,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-25 10:10:20,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:10:20,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-25 10:10:20,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-12-25 10:10:20,453 INFO L87 Difference]: Start difference. First operand 29716 states and 33409 transitions. Second operand has 21 states, 21 states have (on average 10.761904761904763) internal successors, (226), 21 states have internal predecessors, (226), 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) [2023-12-25 10:10:21,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:10:21,884 INFO L93 Difference]: Finished difference Result 44927 states and 50127 transitions. [2023-12-25 10:10:21,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-25 10:10:21,885 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 10.761904761904763) internal successors, (226), 21 states have internal predecessors, (226), 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 153 [2023-12-25 10:10:21,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:10:21,916 INFO L225 Difference]: With dead ends: 44927 [2023-12-25 10:10:21,916 INFO L226 Difference]: Without dead ends: 37130 [2023-12-25 10:10:21,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=331, Invalid=1229, Unknown=0, NotChecked=0, Total=1560 [2023-12-25 10:10:21,929 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 857 mSDsluCounter, 1898 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:10:21,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 2127 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 10:10:21,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37130 states. [2023-12-25 10:10:22,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37130 to 26871. [2023-12-25 10:10:22,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26871 states, 26870 states have (on average 1.1259769259397097) internal successors, (30255), 26870 states have internal predecessors, (30255), 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) [2023-12-25 10:10:22,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26871 states to 26871 states and 30255 transitions. [2023-12-25 10:10:22,185 INFO L78 Accepts]: Start accepts. Automaton has 26871 states and 30255 transitions. Word has length 153 [2023-12-25 10:10:22,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:10:22,185 INFO L495 AbstractCegarLoop]: Abstraction has 26871 states and 30255 transitions. [2023-12-25 10:10:22,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 10.761904761904763) internal successors, (226), 21 states have internal predecessors, (226), 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) [2023-12-25 10:10:22,185 INFO L276 IsEmpty]: Start isEmpty. Operand 26871 states and 30255 transitions. [2023-12-25 10:10:22,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 10:10:22,186 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:10:22,186 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:10:22,189 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 (48)] Ended with exit code 0 [2023-12-25 10:10:22,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /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 [2023-12-25 10:10:22,387 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:10:22,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:10:22,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1535018851, now seen corresponding path program 1 times [2023-12-25 10:10:22,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:10:22,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596651890] [2023-12-25 10:10:22,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:10:22,388 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 [2023-12-25 10:10:22,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:10:22,389 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2023-12-25 10:10:22,391 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 (49)] Waiting until timeout for monitored process [2023-12-25 10:10:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:10:22,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-25 10:10:22,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:10:23,226 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 22 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:10:23,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:10:23,593 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 22 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:10:23,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:10:23,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596651890] [2023-12-25 10:10:23,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [596651890] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:10:23,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:10:23,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 29 [2023-12-25 10:10:23,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132982777] [2023-12-25 10:10:23,593 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:10:23,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-25 10:10:23,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:10:23,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-25 10:10:23,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2023-12-25 10:10:23,594 INFO L87 Difference]: Start difference. First operand 26871 states and 30255 transitions. Second operand has 29 states, 29 states have (on average 9.862068965517242) internal successors, (286), 29 states have internal predecessors, (286), 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) [2023-12-25 10:10:25,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:10:25,678 INFO L93 Difference]: Finished difference Result 38185 states and 42567 transitions. [2023-12-25 10:10:25,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-25 10:10:25,678 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.862068965517242) internal successors, (286), 29 states have internal predecessors, (286), 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 153 [2023-12-25 10:10:25,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:10:25,708 INFO L225 Difference]: With dead ends: 38185 [2023-12-25 10:10:25,708 INFO L226 Difference]: Without dead ends: 33577 [2023-12-25 10:10:25,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=560, Invalid=3346, Unknown=0, NotChecked=0, Total=3906 [2023-12-25 10:10:25,720 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 945 mSDsluCounter, 3714 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 3953 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 10:10:25,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 3953 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 10:10:25,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33577 states. [2023-12-25 10:10:25,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33577 to 27151. [2023-12-25 10:10:25,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27151 states, 27150 states have (on average 1.1248987108655617) internal successors, (30541), 27150 states have internal predecessors, (30541), 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) [2023-12-25 10:10:25,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27151 states to 27151 states and 30541 transitions. [2023-12-25 10:10:25,978 INFO L78 Accepts]: Start accepts. Automaton has 27151 states and 30541 transitions. Word has length 153 [2023-12-25 10:10:25,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:10:25,978 INFO L495 AbstractCegarLoop]: Abstraction has 27151 states and 30541 transitions. [2023-12-25 10:10:25,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.862068965517242) internal successors, (286), 29 states have internal predecessors, (286), 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) [2023-12-25 10:10:25,978 INFO L276 IsEmpty]: Start isEmpty. Operand 27151 states and 30541 transitions. [2023-12-25 10:10:25,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 10:10:25,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:10:25,980 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:10:25,985 INFO L540 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 (49)] Forceful destruction successful, exit code 0 [2023-12-25 10:10:26,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /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 [2023-12-25 10:10:26,183 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:10:26,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:10:26,183 INFO L85 PathProgramCache]: Analyzing trace with hash -910954333, now seen corresponding path program 1 times [2023-12-25 10:10:26,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:10:26,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37058767] [2023-12-25 10:10:26,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:10:26,183 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 [2023-12-25 10:10:26,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:10:26,184 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2023-12-25 10:10:26,185 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 (50)] Waiting until timeout for monitored process [2023-12-25 10:10:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:10:26,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-25 10:10:26,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:10:27,847 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 25 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:10:27,848 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:10:29,385 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 25 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:10:29,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:10:29,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37058767] [2023-12-25 10:10:29,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37058767] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:10:29,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:10:29,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 27] total 54 [2023-12-25 10:10:29,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107332568] [2023-12-25 10:10:29,386 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:10:29,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2023-12-25 10:10:29,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:10:29,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2023-12-25 10:10:29,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=2672, Unknown=0, NotChecked=0, Total=2862 [2023-12-25 10:10:29,387 INFO L87 Difference]: Start difference. First operand 27151 states and 30541 transitions. Second operand has 54 states, 54 states have (on average 5.074074074074074) internal successors, (274), 54 states have internal predecessors, (274), 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) [2023-12-25 10:10:55,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:10:55,605 INFO L93 Difference]: Finished difference Result 44271 states and 49527 transitions. [2023-12-25 10:10:55,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2023-12-25 10:10:55,606 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 5.074074074074074) internal successors, (274), 54 states have internal predecessors, (274), 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 153 [2023-12-25 10:10:55,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:10:55,639 INFO L225 Difference]: With dead ends: 44271 [2023-12-25 10:10:55,639 INFO L226 Difference]: Without dead ends: 43357 [2023-12-25 10:10:55,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 252 SyntacticMatches, 2 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 18075 ImplicationChecksByTransitivity, 22.4s TimeCoverageRelationStatistics Valid=4206, Invalid=51254, Unknown=0, NotChecked=0, Total=55460 [2023-12-25 10:10:55,650 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 2683 mSDsluCounter, 10761 mSDsCounter, 0 mSdLazyCounter, 5184 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2683 SdHoareTripleChecker+Valid, 11155 SdHoareTripleChecker+Invalid, 5276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 5184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:10:55,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2683 Valid, 11155 Invalid, 5276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 5184 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-25 10:10:55,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43357 states. [2023-12-25 10:10:55,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43357 to 27261. [2023-12-25 10:10:55,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27261 states, 27260 states have (on average 1.124578136463683) internal successors, (30656), 27260 states have internal predecessors, (30656), 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) [2023-12-25 10:10:55,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27261 states to 27261 states and 30656 transitions. [2023-12-25 10:10:55,917 INFO L78 Accepts]: Start accepts. Automaton has 27261 states and 30656 transitions. Word has length 153 [2023-12-25 10:10:55,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:10:55,917 INFO L495 AbstractCegarLoop]: Abstraction has 27261 states and 30656 transitions. [2023-12-25 10:10:55,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 5.074074074074074) internal successors, (274), 54 states have internal predecessors, (274), 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) [2023-12-25 10:10:55,918 INFO L276 IsEmpty]: Start isEmpty. Operand 27261 states and 30656 transitions. [2023-12-25 10:10:55,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 10:10:55,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:10:55,919 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:10:55,923 INFO L540 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 (50)] Forceful destruction successful, exit code 0 [2023-12-25 10:10:56,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /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 [2023-12-25 10:10:56,120 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:10:56,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:10:56,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1241604376, now seen corresponding path program 1 times [2023-12-25 10:10:56,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:10:56,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920926717] [2023-12-25 10:10:56,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:10:56,121 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 [2023-12-25 10:10:56,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:10:56,121 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2023-12-25 10:10:56,124 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 (51)] Waiting until timeout for monitored process [2023-12-25 10:10:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:10:56,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 10:10:56,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:10:56,905 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 40 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:10:56,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:10:57,295 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 40 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:10:57,295 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:10:57,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920926717] [2023-12-25 10:10:57,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920926717] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:10:57,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:10:57,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 31 [2023-12-25 10:10:57,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643887808] [2023-12-25 10:10:57,295 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:10:57,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-25 10:10:57,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:10:57,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-25 10:10:57,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2023-12-25 10:10:57,296 INFO L87 Difference]: Start difference. First operand 27261 states and 30656 transitions. Second operand has 31 states, 31 states have (on average 9.161290322580646) internal successors, (284), 31 states have internal predecessors, (284), 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) [2023-12-25 10:11:01,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:01,117 INFO L93 Difference]: Finished difference Result 38023 states and 42991 transitions. [2023-12-25 10:11:01,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-12-25 10:11:01,118 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 9.161290322580646) internal successors, (284), 31 states have internal predecessors, (284), 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 153 [2023-12-25 10:11:01,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:01,145 INFO L225 Difference]: With dead ends: 38023 [2023-12-25 10:11:01,146 INFO L226 Difference]: Without dead ends: 32021 [2023-12-25 10:11:01,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1524 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1182, Invalid=5958, Unknown=0, NotChecked=0, Total=7140 [2023-12-25 10:11:01,156 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 1078 mSDsluCounter, 5605 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 5986 SdHoareTripleChecker+Invalid, 1764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:01,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 5986 Invalid, 1764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 10:11:01,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32021 states. [2023-12-25 10:11:01,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32021 to 25081. [2023-12-25 10:11:01,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25081 states, 25080 states have (on average 1.1211323763955343) internal successors, (28118), 25080 states have internal predecessors, (28118), 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) [2023-12-25 10:11:01,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25081 states to 25081 states and 28118 transitions. [2023-12-25 10:11:01,379 INFO L78 Accepts]: Start accepts. Automaton has 25081 states and 28118 transitions. Word has length 153 [2023-12-25 10:11:01,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:01,379 INFO L495 AbstractCegarLoop]: Abstraction has 25081 states and 28118 transitions. [2023-12-25 10:11:01,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 9.161290322580646) internal successors, (284), 31 states have internal predecessors, (284), 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) [2023-12-25 10:11:01,379 INFO L276 IsEmpty]: Start isEmpty. Operand 25081 states and 28118 transitions. [2023-12-25 10:11:01,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-25 10:11:01,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:01,381 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:11:01,386 INFO L540 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 (51)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:01,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /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 [2023-12-25 10:11:01,581 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:11:01,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:01,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1203113571, now seen corresponding path program 1 times [2023-12-25 10:11:01,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:01,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841852884] [2023-12-25 10:11:01,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:01,582 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 [2023-12-25 10:11:01,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:01,583 INFO L229 MonitoredProcess]: Starting monitored process 52 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) [2023-12-25 10:11:01,584 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 (52)] Waiting until timeout for monitored process [2023-12-25 10:11:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:01,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-25 10:11:01,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:03,105 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 22 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:03,105 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:11:04,139 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 22 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:04,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:04,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841852884] [2023-12-25 10:11:04,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841852884] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:11:04,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:11:04,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19] total 39 [2023-12-25 10:11:04,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308681490] [2023-12-25 10:11:04,140 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:11:04,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-25 10:11:04,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:04,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-25 10:11:04,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1377, Unknown=0, NotChecked=0, Total=1482 [2023-12-25 10:11:04,141 INFO L87 Difference]: Start difference. First operand 25081 states and 28118 transitions. Second operand has 39 states, 39 states have (on average 7.589743589743589) internal successors, (296), 39 states have internal predecessors, (296), 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) [2023-12-25 10:11:28,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:28,651 INFO L93 Difference]: Finished difference Result 40302 states and 45184 transitions. [2023-12-25 10:11:28,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2023-12-25 10:11:28,652 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 7.589743589743589) internal successors, (296), 39 states have internal predecessors, (296), 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 154 [2023-12-25 10:11:28,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:28,674 INFO L225 Difference]: With dead ends: 40302 [2023-12-25 10:11:28,674 INFO L226 Difference]: Without dead ends: 26820 [2023-12-25 10:11:28,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9423 ImplicationChecksByTransitivity, 21.4s TimeCoverageRelationStatistics Valid=3887, Invalid=27265, Unknown=0, NotChecked=0, Total=31152 [2023-12-25 10:11:28,685 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 2496 mSDsluCounter, 6565 mSDsCounter, 0 mSdLazyCounter, 3192 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2496 SdHoareTripleChecker+Valid, 6833 SdHoareTripleChecker+Invalid, 3240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 3192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:28,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2496 Valid, 6833 Invalid, 3240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 3192 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-25 10:11:28,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26820 states. [2023-12-25 10:11:28,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26820 to 19061. [2023-12-25 10:11:28,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19061 states, 19060 states have (on average 1.1126967471143756) internal successors, (21208), 19060 states have internal predecessors, (21208), 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) [2023-12-25 10:11:28,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19061 states to 19061 states and 21208 transitions. [2023-12-25 10:11:28,855 INFO L78 Accepts]: Start accepts. Automaton has 19061 states and 21208 transitions. Word has length 154 [2023-12-25 10:11:28,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:28,856 INFO L495 AbstractCegarLoop]: Abstraction has 19061 states and 21208 transitions. [2023-12-25 10:11:28,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 7.589743589743589) internal successors, (296), 39 states have internal predecessors, (296), 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) [2023-12-25 10:11:28,856 INFO L276 IsEmpty]: Start isEmpty. Operand 19061 states and 21208 transitions. [2023-12-25 10:11:28,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-25 10:11:28,858 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:28,858 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:11:28,863 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 (52)] Ended with exit code 0 [2023-12-25 10:11:29,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /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 [2023-12-25 10:11:29,059 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:11:29,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:29,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1161593712, now seen corresponding path program 1 times [2023-12-25 10:11:29,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:29,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85844450] [2023-12-25 10:11:29,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:29,060 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 [2023-12-25 10:11:29,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:29,061 INFO L229 MonitoredProcess]: Starting monitored process 53 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) [2023-12-25 10:11:29,061 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 (53)] Waiting until timeout for monitored process [2023-12-25 10:11:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:29,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-25 10:11:29,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:31,013 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 66 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 10:11:31,013 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:11:31,570 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 77 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:31,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:31,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85844450] [2023-12-25 10:11:31,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85844450] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:11:31,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:11:31,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 13] total 33 [2023-12-25 10:11:31,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116100349] [2023-12-25 10:11:31,570 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:11:31,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-25 10:11:31,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:31,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-25 10:11:31,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=889, Unknown=0, NotChecked=0, Total=1056 [2023-12-25 10:11:31,571 INFO L87 Difference]: Start difference. First operand 19061 states and 21208 transitions. Second operand has 33 states, 33 states have (on average 8.181818181818182) internal successors, (270), 33 states have internal predecessors, (270), 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) [2023-12-25 10:11:42,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:42,683 INFO L93 Difference]: Finished difference Result 45014 states and 50300 transitions. [2023-12-25 10:11:42,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-12-25 10:11:42,683 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 8.181818181818182) internal successors, (270), 33 states have internal predecessors, (270), 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 155 [2023-12-25 10:11:42,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:42,716 INFO L225 Difference]: With dead ends: 45014 [2023-12-25 10:11:42,716 INFO L226 Difference]: Without dead ends: 34170 [2023-12-25 10:11:42,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3853 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=2047, Invalid=11063, Unknown=0, NotChecked=0, Total=13110 [2023-12-25 10:11:42,730 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 1584 mSDsluCounter, 5788 mSDsCounter, 0 mSdLazyCounter, 3005 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1584 SdHoareTripleChecker+Valid, 6112 SdHoareTripleChecker+Invalid, 3014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:42,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1584 Valid, 6112 Invalid, 3014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3005 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-25 10:11:42,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34170 states. [2023-12-25 10:11:42,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34170 to 22208. [2023-12-25 10:11:42,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22208 states, 22207 states have (on average 1.1102805421713875) internal successors, (24656), 22207 states have internal predecessors, (24656), 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) [2023-12-25 10:11:42,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22208 states to 22208 states and 24656 transitions. [2023-12-25 10:11:42,956 INFO L78 Accepts]: Start accepts. Automaton has 22208 states and 24656 transitions. Word has length 155 [2023-12-25 10:11:42,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:42,957 INFO L495 AbstractCegarLoop]: Abstraction has 22208 states and 24656 transitions. [2023-12-25 10:11:42,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 8.181818181818182) internal successors, (270), 33 states have internal predecessors, (270), 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) [2023-12-25 10:11:42,957 INFO L276 IsEmpty]: Start isEmpty. Operand 22208 states and 24656 transitions. [2023-12-25 10:11:42,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-25 10:11:42,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:42,958 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:11:42,961 INFO L540 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 (53)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:43,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /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 [2023-12-25 10:11:43,159 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:11:43,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:43,159 INFO L85 PathProgramCache]: Analyzing trace with hash -898656495, now seen corresponding path program 1 times [2023-12-25 10:11:43,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:43,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762322712] [2023-12-25 10:11:43,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:43,160 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 [2023-12-25 10:11:43,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:43,161 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2023-12-25 10:11:43,161 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 (54)] Waiting until timeout for monitored process [2023-12-25 10:11:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:43,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-25 10:11:43,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:44,880 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 61 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-25 10:11:44,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:11:46,067 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 32 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:46,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:46,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762322712] [2023-12-25 10:11:46,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1762322712] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:11:46,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:11:46,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 40 [2023-12-25 10:11:46,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803160178] [2023-12-25 10:11:46,068 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:11:46,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-25 10:11:46,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:46,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-25 10:11:46,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1409, Unknown=0, NotChecked=0, Total=1560 [2023-12-25 10:11:46,069 INFO L87 Difference]: Start difference. First operand 22208 states and 24656 transitions. Second operand has 40 states, 40 states have (on average 6.7) internal successors, (268), 40 states have internal predecessors, (268), 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) [2023-12-25 10:12:14,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:14,336 INFO L93 Difference]: Finished difference Result 38870 states and 43540 transitions. [2023-12-25 10:12:14,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2023-12-25 10:12:14,337 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 6.7) internal successors, (268), 40 states have internal predecessors, (268), 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 156 [2023-12-25 10:12:14,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:14,362 INFO L225 Difference]: With dead ends: 38870 [2023-12-25 10:12:14,363 INFO L226 Difference]: Without dead ends: 30815 [2023-12-25 10:12:14,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13864 ImplicationChecksByTransitivity, 24.2s TimeCoverageRelationStatistics Valid=4315, Invalid=37097, Unknown=0, NotChecked=0, Total=41412 [2023-12-25 10:12:14,423 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 3003 mSDsluCounter, 6495 mSDsCounter, 0 mSdLazyCounter, 3588 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3003 SdHoareTripleChecker+Valid, 6787 SdHoareTripleChecker+Invalid, 3674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:14,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3003 Valid, 6787 Invalid, 3674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3588 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-25 10:12:14,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30815 states. [2023-12-25 10:12:14,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30815 to 21108. [2023-12-25 10:12:14,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21108 states, 21107 states have (on average 1.1167385227649596) internal successors, (23571), 21107 states have internal predecessors, (23571), 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) [2023-12-25 10:12:14,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21108 states to 21108 states and 23571 transitions. [2023-12-25 10:12:14,611 INFO L78 Accepts]: Start accepts. Automaton has 21108 states and 23571 transitions. Word has length 156 [2023-12-25 10:12:14,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:14,611 INFO L495 AbstractCegarLoop]: Abstraction has 21108 states and 23571 transitions. [2023-12-25 10:12:14,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 6.7) internal successors, (268), 40 states have internal predecessors, (268), 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) [2023-12-25 10:12:14,612 INFO L276 IsEmpty]: Start isEmpty. Operand 21108 states and 23571 transitions. [2023-12-25 10:12:14,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-25 10:12:14,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:14,613 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:14,615 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 (54)] Ended with exit code 0 [2023-12-25 10:12:14,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /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 [2023-12-25 10:12:14,813 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:12:14,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:14,814 INFO L85 PathProgramCache]: Analyzing trace with hash 162857362, now seen corresponding path program 1 times [2023-12-25 10:12:14,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:14,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182793659] [2023-12-25 10:12:14,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:14,814 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 [2023-12-25 10:12:14,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:14,815 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2023-12-25 10:12:14,822 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 (55)] Waiting until timeout for monitored process [2023-12-25 10:12:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:14,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 10:12:14,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:15,580 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-25 10:12:15,580 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:12:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-25 10:12:15,817 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:15,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182793659] [2023-12-25 10:12:15,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182793659] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:12:15,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:12:15,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2023-12-25 10:12:15,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90020295] [2023-12-25 10:12:15,817 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:12:15,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-25 10:12:15,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:15,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-25 10:12:15,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2023-12-25 10:12:15,818 INFO L87 Difference]: Start difference. First operand 21108 states and 23571 transitions. Second operand has 21 states, 21 states have (on average 10.238095238095237) internal successors, (215), 21 states have internal predecessors, (215), 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) [2023-12-25 10:12:16,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:16,922 INFO L93 Difference]: Finished difference Result 23325 states and 26082 transitions. [2023-12-25 10:12:16,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 10:12:16,923 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 10.238095238095237) internal successors, (215), 21 states have internal predecessors, (215), 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 157 [2023-12-25 10:12:16,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:16,941 INFO L225 Difference]: With dead ends: 23325 [2023-12-25 10:12:16,941 INFO L226 Difference]: Without dead ends: 18021 [2023-12-25 10:12:16,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=235, Invalid=821, Unknown=0, NotChecked=0, Total=1056 [2023-12-25 10:12:16,950 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 644 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 2299 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:16,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 2299 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 10:12:16,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18021 states. [2023-12-25 10:12:17,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18021 to 16876. [2023-12-25 10:12:17,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16876 states, 16875 states have (on average 1.1207111111111112) internal successors, (18912), 16875 states have internal predecessors, (18912), 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) [2023-12-25 10:12:17,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16876 states to 16876 states and 18912 transitions. [2023-12-25 10:12:17,115 INFO L78 Accepts]: Start accepts. Automaton has 16876 states and 18912 transitions. Word has length 157 [2023-12-25 10:12:17,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:17,115 INFO L495 AbstractCegarLoop]: Abstraction has 16876 states and 18912 transitions. [2023-12-25 10:12:17,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 10.238095238095237) internal successors, (215), 21 states have internal predecessors, (215), 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) [2023-12-25 10:12:17,116 INFO L276 IsEmpty]: Start isEmpty. Operand 16876 states and 18912 transitions. [2023-12-25 10:12:17,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-25 10:12:17,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:17,117 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:17,124 INFO L540 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 (55)] Forceful destruction successful, exit code 0 [2023-12-25 10:12:17,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /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 [2023-12-25 10:12:17,321 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:12:17,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:17,321 INFO L85 PathProgramCache]: Analyzing trace with hash -695305569, now seen corresponding path program 1 times [2023-12-25 10:12:17,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:17,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524560059] [2023-12-25 10:12:17,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:17,322 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 [2023-12-25 10:12:17,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:17,323 INFO L229 MonitoredProcess]: Starting monitored process 56 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) [2023-12-25 10:12:17,324 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 (56)] Waiting until timeout for monitored process [2023-12-25 10:12:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:17,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 10:12:17,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:18,938 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 67 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 10:12:18,938 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:12:19,695 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 67 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 10:12:19,696 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:19,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524560059] [2023-12-25 10:12:19,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524560059] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:12:19,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:12:19,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 31 [2023-12-25 10:12:19,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861706145] [2023-12-25 10:12:19,696 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:12:19,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-25 10:12:19,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:19,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-25 10:12:19,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2023-12-25 10:12:19,697 INFO L87 Difference]: Start difference. First operand 16876 states and 18912 transitions. Second operand has 31 states, 31 states have (on average 7.548387096774194) internal successors, (234), 31 states have internal predecessors, (234), 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) [2023-12-25 10:12:38,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:38,309 INFO L93 Difference]: Finished difference Result 24342 states and 27338 transitions. [2023-12-25 10:12:38,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-25 10:12:38,310 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 7.548387096774194) internal successors, (234), 31 states have internal predecessors, (234), 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 157 [2023-12-25 10:12:38,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:38,329 INFO L225 Difference]: With dead ends: 24342 [2023-12-25 10:12:38,329 INFO L226 Difference]: Without dead ends: 24049 [2023-12-25 10:12:38,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=692, Invalid=3214, Unknown=0, NotChecked=0, Total=3906 [2023-12-25 10:12:38,336 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 1454 mSDsluCounter, 3619 mSDsCounter, 0 mSdLazyCounter, 1522 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 3871 SdHoareTripleChecker+Invalid, 1538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:38,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 3871 Invalid, 1538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1522 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-25 10:12:38,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24049 states. [2023-12-25 10:12:38,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24049 to 16532. [2023-12-25 10:12:38,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16532 states, 16531 states have (on average 1.122073679753191) internal successors, (18549), 16531 states have internal predecessors, (18549), 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) [2023-12-25 10:12:38,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16532 states to 16532 states and 18549 transitions. [2023-12-25 10:12:38,494 INFO L78 Accepts]: Start accepts. Automaton has 16532 states and 18549 transitions. Word has length 157 [2023-12-25 10:12:38,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:38,495 INFO L495 AbstractCegarLoop]: Abstraction has 16532 states and 18549 transitions. [2023-12-25 10:12:38,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.548387096774194) internal successors, (234), 31 states have internal predecessors, (234), 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) [2023-12-25 10:12:38,495 INFO L276 IsEmpty]: Start isEmpty. Operand 16532 states and 18549 transitions. [2023-12-25 10:12:38,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-25 10:12:38,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:38,496 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:38,498 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 (56)] Ended with exit code 0 [2023-12-25 10:12:38,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /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 [2023-12-25 10:12:38,696 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:12:38,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:38,697 INFO L85 PathProgramCache]: Analyzing trace with hash 733762706, now seen corresponding path program 1 times [2023-12-25 10:12:38,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:38,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713372107] [2023-12-25 10:12:38,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:38,697 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 [2023-12-25 10:12:38,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:38,698 INFO L229 MonitoredProcess]: Starting monitored process 57 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) [2023-12-25 10:12:38,699 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 (57)] Waiting until timeout for monitored process [2023-12-25 10:12:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:38,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-25 10:12:38,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:40,143 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-25 10:12:40,144 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:12:40,144 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:40,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713372107] [2023-12-25 10:12:40,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713372107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:12:40,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:12:40,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-25 10:12:40,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878887252] [2023-12-25 10:12:40,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:12:40,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-25 10:12:40,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:40,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-25 10:12:40,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2023-12-25 10:12:40,145 INFO L87 Difference]: Start difference. First operand 16532 states and 18549 transitions. Second operand has 17 states, 17 states have (on average 6.0) internal successors, (102), 17 states have internal predecessors, (102), 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) [2023-12-25 10:12:43,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:43,673 INFO L93 Difference]: Finished difference Result 16538 states and 18552 transitions. [2023-12-25 10:12:43,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-25 10:12:43,673 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.0) internal successors, (102), 17 states have internal predecessors, (102), 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 160 [2023-12-25 10:12:43,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:43,687 INFO L225 Difference]: With dead ends: 16538 [2023-12-25 10:12:43,687 INFO L226 Difference]: Without dead ends: 16196 [2023-12-25 10:12:43,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=166, Invalid=646, Unknown=0, NotChecked=0, Total=812 [2023-12-25 10:12:43,692 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 490 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:43,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 1781 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-25 10:12:43,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16196 states. [2023-12-25 10:12:43,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16196 to 16192. [2023-12-25 10:12:43,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16192 states, 16191 states have (on average 1.1238959916002718) internal successors, (18197), 16191 states have internal predecessors, (18197), 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) [2023-12-25 10:12:43,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16192 states to 16192 states and 18197 transitions. [2023-12-25 10:12:43,834 INFO L78 Accepts]: Start accepts. Automaton has 16192 states and 18197 transitions. Word has length 160 [2023-12-25 10:12:43,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:43,834 INFO L495 AbstractCegarLoop]: Abstraction has 16192 states and 18197 transitions. [2023-12-25 10:12:43,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.0) internal successors, (102), 17 states have internal predecessors, (102), 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) [2023-12-25 10:12:43,834 INFO L276 IsEmpty]: Start isEmpty. Operand 16192 states and 18197 transitions. [2023-12-25 10:12:43,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-25 10:12:43,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:43,835 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:43,838 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 (57)] Ended with exit code 0 [2023-12-25 10:12:44,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /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 [2023-12-25 10:12:44,036 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:12:44,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:44,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1514765978, now seen corresponding path program 1 times [2023-12-25 10:12:44,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:44,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562646303] [2023-12-25 10:12:44,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:44,037 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 [2023-12-25 10:12:44,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:44,038 INFO L229 MonitoredProcess]: Starting monitored process 58 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) [2023-12-25 10:12:44,038 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 (58)] Waiting until timeout for monitored process [2023-12-25 10:12:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:44,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-25 10:12:44,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:45,858 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 43 proven. 207 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:45,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:12:47,433 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 43 proven. 207 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:47,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:47,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562646303] [2023-12-25 10:12:47,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562646303] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:12:47,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:12:47,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 51 [2023-12-25 10:12:47,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348843252] [2023-12-25 10:12:47,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:12:47,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-12-25 10:12:47,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:47,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-12-25 10:12:47,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=2416, Unknown=0, NotChecked=0, Total=2550 [2023-12-25 10:12:47,435 INFO L87 Difference]: Start difference. First operand 16192 states and 18197 transitions. Second operand has 51 states, 51 states have (on average 7.1568627450980395) internal successors, (365), 51 states have internal predecessors, (365), 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) [2023-12-25 10:13:13,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:13:13,437 INFO L93 Difference]: Finished difference Result 25044 states and 28244 transitions. [2023-12-25 10:13:13,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2023-12-25 10:13:13,437 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 7.1568627450980395) internal successors, (365), 51 states have internal predecessors, (365), 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 200 [2023-12-25 10:13:13,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:13:13,456 INFO L225 Difference]: With dead ends: 25044 [2023-12-25 10:13:13,456 INFO L226 Difference]: Without dead ends: 22195 [2023-12-25 10:13:13,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 348 SyntacticMatches, 2 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 5 DeprecatedPredicates, 19017 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=4083, Invalid=53757, Unknown=0, NotChecked=0, Total=57840 [2023-12-25 10:13:13,466 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 3018 mSDsluCounter, 8500 mSDsCounter, 0 mSdLazyCounter, 5060 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3018 SdHoareTripleChecker+Valid, 8786 SdHoareTripleChecker+Invalid, 5143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 5060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-25 10:13:13,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3018 Valid, 8786 Invalid, 5143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 5060 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-25 10:13:13,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22195 states. [2023-12-25 10:13:13,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22195 to 16284. [2023-12-25 10:13:13,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16284 states, 16283 states have (on average 1.1233187987471596) internal successors, (18291), 16283 states have internal predecessors, (18291), 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) [2023-12-25 10:13:13,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16284 states to 16284 states and 18291 transitions. [2023-12-25 10:13:13,627 INFO L78 Accepts]: Start accepts. Automaton has 16284 states and 18291 transitions. Word has length 200 [2023-12-25 10:13:13,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:13:13,627 INFO L495 AbstractCegarLoop]: Abstraction has 16284 states and 18291 transitions. [2023-12-25 10:13:13,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 7.1568627450980395) internal successors, (365), 51 states have internal predecessors, (365), 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) [2023-12-25 10:13:13,627 INFO L276 IsEmpty]: Start isEmpty. Operand 16284 states and 18291 transitions. [2023-12-25 10:13:13,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-25 10:13:13,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:13:13,629 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:13:13,634 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 (58)] Ended with exit code 0 [2023-12-25 10:13:13,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /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 [2023-12-25 10:13:13,829 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 10:13:13,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:13:13,830 INFO L85 PathProgramCache]: Analyzing trace with hash -721555736, now seen corresponding path program 1 times [2023-12-25 10:13:13,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:13:13,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916195018] [2023-12-25 10:13:13,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:13:13,831 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 [2023-12-25 10:13:13,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:13:13,832 INFO L229 MonitoredProcess]: Starting monitored process 59 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) [2023-12-25 10:13:13,832 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 (59)] Waiting until timeout for monitored process [2023-12-25 10:13:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:13:13,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-25 10:13:13,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:13:15,727 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 27 proven. 223 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:13:15,727 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:13:17,280 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 27 proven. 223 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:13:17,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:13:17,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1916195018] [2023-12-25 10:13:17,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1916195018] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:13:17,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:13:17,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 51 [2023-12-25 10:13:17,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738630439] [2023-12-25 10:13:17,281 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:13:17,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-12-25 10:13:17,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:13:17,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-12-25 10:13:17,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=2414, Unknown=0, NotChecked=0, Total=2550 [2023-12-25 10:13:17,282 INFO L87 Difference]: Start difference. First operand 16284 states and 18291 transitions. Second operand has 51 states, 51 states have (on average 7.313725490196078) internal successors, (373), 51 states have internal predecessors, (373), 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) Received shutdown request... [2023-12-25 10:14:00,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2023-12-25 10:14:00,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 348 SyntacticMatches, 2 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 6 DeprecatedPredicates, 15094 ImplicationChecksByTransitivity, 39.4s TimeCoverageRelationStatistics Valid=4536, Invalid=42336, Unknown=0, NotChecked=0, Total=46872 [2023-12-25 10:14:00,862 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 2952 mSDsluCounter, 9107 mSDsCounter, 0 mSdLazyCounter, 5206 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2952 SdHoareTripleChecker+Valid, 9475 SdHoareTripleChecker+Invalid, 5291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 5206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:14:00,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2952 Valid, 9475 Invalid, 5291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 5206 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-25 10:14:00,863 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-12-25 10:14:00,873 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 (59)] Ended with exit code 0 [2023-12-25 10:14:00,893 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 10:14:00,895 WARN L340 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 (59)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 10:14:01,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /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 [2023-12-25 10:14:01,066 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (16284states) and FLOYD_HOARE automaton (currently 174 states, 51 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-9-2-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-8-2-1 context. [2023-12-25 10:14:01,068 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-12-25 10:14:01,068 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-12-25 10:14:01,068 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-12-25 10:14:01,068 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-12-25 10:14:01,068 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-12-25 10:14:01,068 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-12-25 10:14:01,071 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:14:01,073 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 10:14:01,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 10:14:01 BoogieIcfgContainer [2023-12-25 10:14:01,074 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 10:14:01,074 INFO L158 Benchmark]: Toolchain (without parser) took 857101.95ms. Allocated memory was 229.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 181.2MB in the beginning and 813.4MB in the end (delta: -632.2MB). Peak memory consumption was 532.4MB. Max. memory is 8.0GB. [2023-12-25 10:14:01,074 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 177.2MB. Free memory is still 132.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 10:14:01,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.29ms. Allocated memory is still 229.6MB. Free memory was 181.2MB in the beginning and 149.0MB in the end (delta: 32.1MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2023-12-25 10:14:01,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.65ms. Allocated memory is still 229.6MB. Free memory was 149.0MB in the beginning and 144.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-25 10:14:01,074 INFO L158 Benchmark]: Boogie Preprocessor took 54.50ms. Allocated memory is still 229.6MB. Free memory was 144.8MB in the beginning and 139.6MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-25 10:14:01,075 INFO L158 Benchmark]: RCFGBuilder took 881.53ms. Allocated memory is still 229.6MB. Free memory was 139.6MB in the beginning and 149.1MB in the end (delta: -9.5MB). Peak memory consumption was 18.6MB. Max. memory is 8.0GB. [2023-12-25 10:14:01,075 INFO L158 Benchmark]: TraceAbstraction took 855742.17ms. Allocated memory was 229.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 148.0MB in the beginning and 813.4MB in the end (delta: -665.3MB). Peak memory consumption was 498.1MB. Max. memory is 8.0GB. [2023-12-25 10:14:01,075 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 177.2MB. Free memory is still 132.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 370.29ms. Allocated memory is still 229.6MB. Free memory was 181.2MB in the beginning and 149.0MB in the end (delta: 32.1MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.65ms. Allocated memory is still 229.6MB. Free memory was 149.0MB in the beginning and 144.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.50ms. Allocated memory is still 229.6MB. Free memory was 144.8MB in the beginning and 139.6MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 881.53ms. Allocated memory is still 229.6MB. Free memory was 139.6MB in the beginning and 149.1MB in the end (delta: -9.5MB). Peak memory consumption was 18.6MB. Max. memory is 8.0GB. * TraceAbstraction took 855742.17ms. Allocated memory was 229.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 148.0MB in the beginning and 813.4MB in the end (delta: -665.3MB). Peak memory consumption was 498.1MB. 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 - TimeoutResultAtElement [Line: 390]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 390). Cancelled while NwaCegarLoop was constructing difference of abstraction (16284states) and FLOYD_HOARE automaton (currently 174 states, 51 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-9-2-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-8-2-1 context. - TimeoutResultAtElement [Line: 631]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 631). Cancelled while NwaCegarLoop was constructing difference of abstraction (16284states) and FLOYD_HOARE automaton (currently 174 states, 51 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-9-2-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-8-2-1 context. - TimeoutResultAtElement [Line: 719]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 719). Cancelled while NwaCegarLoop was constructing difference of abstraction (16284states) and FLOYD_HOARE automaton (currently 174 states, 51 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-9-2-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-8-2-1 context. - TimeoutResultAtElement [Line: 766]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 766). Cancelled while NwaCegarLoop was constructing difference of abstraction (16284states) and FLOYD_HOARE automaton (currently 174 states, 51 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-9-2-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-8-2-1 context. - TimeoutResultAtElement [Line: 881]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 881). Cancelled while NwaCegarLoop was constructing difference of abstraction (16284states) and FLOYD_HOARE automaton (currently 174 states, 51 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-9-2-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-8-2-1 context. - TimeoutResultAtElement [Line: 928]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 928). Cancelled while NwaCegarLoop was constructing difference of abstraction (16284states) and FLOYD_HOARE automaton (currently 174 states, 51 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-9-2-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-8-2-1 context. - TimeoutResultAtElement [Line: 1002]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1002). Cancelled while NwaCegarLoop was constructing difference of abstraction (16284states) and FLOYD_HOARE automaton (currently 174 states, 51 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-9-2-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-8-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 204 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 855.7s, OverallIterations: 58, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 769.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 90032 SdHoareTripleChecker+Valid, 109.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 90032 mSDsluCounter, 194308 SdHoareTripleChecker+Invalid, 101.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 179924 mSDsCounter, 1691 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89089 IncrementalHoareTripleChecker+Invalid, 90780 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1691 mSolverCounterUnsat, 14384 mSDtfsCounter, 89089 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14096 GetRequests, 9105 SyntacticMatches, 13 SemanticMatches, 4977 ConstructedPredicates, 0 IntricatePredicates, 21 DeprecatedPredicates, 636247 ImplicationChecksByTransitivity, 675.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38359occurred in iteration=31, InterpolantAutomatonStates: 4098, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.3s AutomataMinimizationTime, 57 MinimizatonAttempts, 388145 StatesRemovedByMinimization, 51 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 60.6s InterpolantComputationTime, 6154 NumberOfCodeBlocks, 6154 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 10062 ConstructedInterpolants, 2987 QuantifiedInterpolants, 131144 SizeOfPredicates, 453 NumberOfNonLiveVariables, 13873 ConjunctsInSsa, 783 ConjunctsInUnsatCore, 88 InterpolantComputations, 28 PerfectInterpolantSequences, 1977/4343 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: Timeout Completed graceful shutdown