/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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 10:19:24,647 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 10:19:24,721 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 10:19:24,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 10:19:24,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 10:19:24,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 10:19:24,750 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 10:19:24,750 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 10:19:24,751 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 10:19:24,754 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 10:19:24,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 10:19:24,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 10:19:24,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 10:19:24,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 10:19:24,756 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 10:19:24,756 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 10:19:24,756 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 10:19:24,757 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 10:19:24,757 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 10:19:24,757 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 10:19:24,757 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 10:19:24,757 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 10:19:24,758 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 10:19:24,758 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 10:19:24,758 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 10:19:24,758 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 10:19:24,758 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 10:19:24,758 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 10:19:24,759 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 10:19:24,759 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 10:19:24,760 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 10:19:24,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 10:19:24,760 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 10:19:24,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 10:19:24,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 10:19:24,760 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 10:19:24,760 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 10:19:24,761 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 10:19:24,761 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 10:19:24,761 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 10:19:24,761 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 10:19:24,761 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 10:19:24,761 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 10:19:24,762 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 10:19:24,762 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 10:19:24,762 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 10:19:24,762 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 10:19:24,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 10:19:24,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 10:19:24,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 10:19:24,947 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 10:19:24,947 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 10:19:24,948 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-25 10:19:26,036 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 10:19:26,229 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 10:19:26,229 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-25 10:19:26,244 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1b638a15/276daaa1adba467882eeb55c149bb1c1/FLAG231218d6b [2023-12-25 10:19:26,253 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1b638a15/276daaa1adba467882eeb55c149bb1c1 [2023-12-25 10:19:26,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 10:19:26,268 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 10:19:26,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 10:19:26,268 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 10:19:26,278 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 10:19:26,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 10:19:26" (1/1) ... [2023-12-25 10:19:26,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e89575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:19:26, skipping insertion in model container [2023-12-25 10:19:26,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 10:19:26" (1/1) ... [2023-12-25 10:19:26,344 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 10:19:26,603 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16906,16919] [2023-12-25 10:19:26,632 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23310,23323] [2023-12-25 10:19:26,650 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26497,26510] [2023-12-25 10:19:26,658 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29453,29466] [2023-12-25 10:19:26,673 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33216,33229] [2023-12-25 10:19:26,680 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[36248,36261] [2023-12-25 10:19:26,688 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[39433,39446] [2023-12-25 10:19:26,709 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42384,42397] [2023-12-25 10:19:26,718 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[45768,45781] [2023-12-25 10:19:26,724 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48734,48747] [2023-12-25 10:19:26,731 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[51883,51896] [2023-12-25 10:19:26,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 10:19:26,768 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 10:19:26,858 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16906,16919] [2023-12-25 10:19:26,892 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23310,23323] [2023-12-25 10:19:26,905 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26497,26510] [2023-12-25 10:19:26,915 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29453,29466] [2023-12-25 10:19:26,923 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33216,33229] [2023-12-25 10:19:26,934 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[36248,36261] [2023-12-25 10:19:26,939 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[39433,39446] [2023-12-25 10:19:26,946 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42384,42397] [2023-12-25 10:19:26,952 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[45768,45781] [2023-12-25 10:19:26,957 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48734,48747] [2023-12-25 10:19:26,963 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.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[51883,51896] [2023-12-25 10:19:26,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 10:19:26,995 INFO L206 MainTranslator]: Completed translation [2023-12-25 10:19:26,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:19:26 WrapperNode [2023-12-25 10:19:26,995 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 10:19:26,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 10:19:26,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 10:19:26,997 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 10:19:27,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:19:26" (1/1) ... [2023-12-25 10:19:27,027 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:19:26" (1/1) ... [2023-12-25 10:19:27,099 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2738 [2023-12-25 10:19:27,099 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 10:19:27,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 10:19:27,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 10:19:27,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 10:19:27,107 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:19:26" (1/1) ... [2023-12-25 10:19:27,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:19:26" (1/1) ... [2023-12-25 10:19:27,112 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:19:26" (1/1) ... [2023-12-25 10:19:27,149 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 10:19:27,150 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:19:26" (1/1) ... [2023-12-25 10:19:27,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:19:26" (1/1) ... [2023-12-25 10:19:27,185 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:19:26" (1/1) ... [2023-12-25 10:19:27,203 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:19:26" (1/1) ... [2023-12-25 10:19:27,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:19:26" (1/1) ... [2023-12-25 10:19:27,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:19:26" (1/1) ... [2023-12-25 10:19:27,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 10:19:27,232 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 10:19:27,232 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 10:19:27,232 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 10:19:27,233 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:19:26" (1/1) ... [2023-12-25 10:19:27,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 10:19:27,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 10:19:27,277 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 10:19:27,338 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 10:19:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 10:19:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 10:19:27,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 10:19:27,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 10:19:27,496 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 10:19:27,499 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 10:19:28,742 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 10:19:28,768 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 10:19:28,769 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-25 10:19:28,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 10:19:28 BoogieIcfgContainer [2023-12-25 10:19:28,769 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 10:19:28,770 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 10:19:28,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 10:19:28,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 10:19:28,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 10:19:26" (1/3) ... [2023-12-25 10:19:28,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482a20fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 10:19:28, skipping insertion in model container [2023-12-25 10:19:28,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:19:26" (2/3) ... [2023-12-25 10:19:28,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482a20fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 10:19:28, skipping insertion in model container [2023-12-25 10:19:28,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 10:19:28" (3/3) ... [2023-12-25 10:19:28,774 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-25 10:19:28,785 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 10:19:28,785 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-12-25 10:19:28,820 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 10:19:28,824 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;@6c451ab0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 10:19:28,824 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-12-25 10:19:28,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 535 states, 523 states have (on average 1.8336520076481835) internal successors, (959), 534 states have internal predecessors, (959), 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 10:19:28,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 10:19:28,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:28,840 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] [2023-12-25 10:19:28,840 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:28,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:28,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1216794109, now seen corresponding path program 1 times [2023-12-25 10:19:28,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:28,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115124711] [2023-12-25 10:19:28,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:28,853 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 10:19:28,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:28,856 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 10:19:28,862 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 10:19:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:28,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:19:28,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:29,282 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 10:19:29,283 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:29,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:29,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115124711] [2023-12-25 10:19:29,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115124711] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:29,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:29,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:19:29,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056211055] [2023-12-25 10:19:29,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:29,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:19:29,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:29,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:19:29,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:19:29,309 INFO L87 Difference]: Start difference. First operand has 535 states, 523 states have (on average 1.8336520076481835) internal successors, (959), 534 states have internal predecessors, (959), 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 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 10:19:29,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:29,655 INFO L93 Difference]: Finished difference Result 671 states and 1171 transitions. [2023-12-25 10:19:29,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:19:29,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2023-12-25 10:19:29,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:29,664 INFO L225 Difference]: With dead ends: 671 [2023-12-25 10:19:29,665 INFO L226 Difference]: Without dead ends: 387 [2023-12-25 10:19:29,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 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 10:19:29,669 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 1922 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:29,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1922 Valid, 424 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 10:19:29,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-12-25 10:19:29,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2023-12-25 10:19:29,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 376 states have (on average 1.297872340425532) internal successors, (488), 386 states have internal predecessors, (488), 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 10:19:29,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 488 transitions. [2023-12-25 10:19:29,702 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 488 transitions. Word has length 58 [2023-12-25 10:19:29,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:29,702 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 488 transitions. [2023-12-25 10:19:29,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 10:19:29,702 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 488 transitions. [2023-12-25 10:19:29,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 10:19:29,704 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:29,704 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] [2023-12-25 10:19:29,717 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 10:19:29,914 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 10:19:29,915 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:29,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:29,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1040787502, now seen corresponding path program 1 times [2023-12-25 10:19:29,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:29,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767161806] [2023-12-25 10:19:29,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:29,917 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 10:19:29,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:29,933 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 10:19:29,961 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 10:19:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:30,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:19:30,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:30,279 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 10:19:30,279 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:30,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:30,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767161806] [2023-12-25 10:19:30,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767161806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:30,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:30,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:19:30,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112625825] [2023-12-25 10:19:30,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:30,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:19:30,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:30,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:19:30,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:19:30,282 INFO L87 Difference]: Start difference. First operand 387 states and 488 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 10:19:30,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:30,470 INFO L93 Difference]: Finished difference Result 485 states and 610 transitions. [2023-12-25 10:19:30,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:19:30,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2023-12-25 10:19:30,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:30,472 INFO L225 Difference]: With dead ends: 485 [2023-12-25 10:19:30,472 INFO L226 Difference]: Without dead ends: 285 [2023-12-25 10:19:30,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 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 10:19:30,473 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 665 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:30,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 215 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 10:19:30,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-12-25 10:19:30,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2023-12-25 10:19:30,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 274 states have (on average 1.302919708029197) internal successors, (357), 284 states have internal predecessors, (357), 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 10:19:30,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 357 transitions. [2023-12-25 10:19:30,480 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 357 transitions. Word has length 58 [2023-12-25 10:19:30,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:30,481 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 357 transitions. [2023-12-25 10:19:30,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 10:19:30,481 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 357 transitions. [2023-12-25 10:19:30,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 10:19:30,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:30,482 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] [2023-12-25 10:19:30,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-25 10:19:30,685 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 10:19:30,685 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:30,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:30,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1884229362, now seen corresponding path program 1 times [2023-12-25 10:19:30,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:30,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814773009] [2023-12-25 10:19:30,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:30,686 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 10:19:30,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:30,689 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 10:19:30,690 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 10:19:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:30,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:19:30,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:30,947 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 10:19:30,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:30,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:30,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814773009] [2023-12-25 10:19:30,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814773009] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:30,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:30,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:19:30,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107843473] [2023-12-25 10:19:30,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:30,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:19:30,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:30,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:19:30,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:19:30,949 INFO L87 Difference]: Start difference. First operand 285 states and 357 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 10:19:31,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:31,110 INFO L93 Difference]: Finished difference Result 413 states and 528 transitions. [2023-12-25 10:19:31,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:19:31,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2023-12-25 10:19:31,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:31,111 INFO L225 Difference]: With dead ends: 413 [2023-12-25 10:19:31,111 INFO L226 Difference]: Without dead ends: 252 [2023-12-25 10:19:31,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 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 10:19:31,113 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 896 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:31,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 191 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:19:31,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-12-25 10:19:31,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2023-12-25 10:19:31,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 241 states have (on average 1.3195020746887967) internal successors, (318), 251 states have internal predecessors, (318), 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 10:19:31,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 318 transitions. [2023-12-25 10:19:31,117 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 318 transitions. Word has length 58 [2023-12-25 10:19:31,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:31,118 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 318 transitions. [2023-12-25 10:19:31,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 10:19:31,118 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 318 transitions. [2023-12-25 10:19:31,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-25 10:19:31,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:31,119 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] [2023-12-25 10:19:31,124 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 (4)] Forceful destruction successful, exit code 0 [2023-12-25 10:19:31,321 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 10:19:31,323 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:31,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:31,324 INFO L85 PathProgramCache]: Analyzing trace with hash -2118690272, now seen corresponding path program 1 times [2023-12-25 10:19:31,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:31,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227764995] [2023-12-25 10:19:31,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:31,325 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 10:19:31,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:31,326 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 10:19:31,341 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 10:19:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:31,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:19:31,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:31,578 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 10:19:31,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:31,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:31,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227764995] [2023-12-25 10:19:31,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [227764995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:31,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:31,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:19:31,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296902549] [2023-12-25 10:19:31,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:31,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:19:31,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:31,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:19:31,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:19:31,580 INFO L87 Difference]: Start difference. First operand 252 states and 318 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 10:19:31,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:31,747 INFO L93 Difference]: Finished difference Result 385 states and 494 transitions. [2023-12-25 10:19:31,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:19:31,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 59 [2023-12-25 10:19:31,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:31,748 INFO L225 Difference]: With dead ends: 385 [2023-12-25 10:19:31,748 INFO L226 Difference]: Without dead ends: 244 [2023-12-25 10:19:31,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 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 10:19:31,749 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 556 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:31,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 189 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:19:31,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-12-25 10:19:31,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2023-12-25 10:19:31,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.3218884120171674) internal successors, (308), 243 states have internal predecessors, (308), 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 10:19:31,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 308 transitions. [2023-12-25 10:19:31,753 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 308 transitions. Word has length 59 [2023-12-25 10:19:31,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:31,753 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 308 transitions. [2023-12-25 10:19:31,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 10:19:31,753 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 308 transitions. [2023-12-25 10:19:31,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-25 10:19:31,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:31,754 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] [2023-12-25 10:19:31,769 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 10:19:31,957 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 10:19:31,958 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:31,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:31,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1322654244, now seen corresponding path program 1 times [2023-12-25 10:19:31,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:31,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619973287] [2023-12-25 10:19:31,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:31,959 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 10:19:31,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:31,960 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 10:19:31,961 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 10:19:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:32,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:19:32,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:32,451 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 10:19:32,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:32,451 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:32,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619973287] [2023-12-25 10:19:32,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619973287] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:32,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:32,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:19:32,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902464612] [2023-12-25 10:19:32,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:32,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:19:32,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:32,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:19:32,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:19:32,454 INFO L87 Difference]: Start difference. First operand 244 states and 308 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 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 10:19:33,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:33,274 INFO L93 Difference]: Finished difference Result 364 states and 482 transitions. [2023-12-25 10:19:33,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:19:33,275 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2023-12-25 10:19:33,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:33,279 INFO L225 Difference]: With dead ends: 364 [2023-12-25 10:19:33,280 INFO L226 Difference]: Without dead ends: 298 [2023-12-25 10:19:33,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 53 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 10:19:33,281 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 780 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:33,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 740 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 10:19:33,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-25 10:19:33,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-25 10:19:33,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.3175965665236051) internal successors, (307), 243 states have internal predecessors, (307), 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 10:19:33,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 307 transitions. [2023-12-25 10:19:33,285 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 307 transitions. Word has length 60 [2023-12-25 10:19:33,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:33,285 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 307 transitions. [2023-12-25 10:19:33,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 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 10:19:33,285 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 307 transitions. [2023-12-25 10:19:33,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-25 10:19:33,286 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:33,286 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] [2023-12-25 10:19:33,289 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 10:19:33,491 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 10:19:33,492 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:33,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:33,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1579426260, now seen corresponding path program 1 times [2023-12-25 10:19:33,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:33,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [733720428] [2023-12-25 10:19:33,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:33,496 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 10:19:33,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:33,497 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 10:19:33,512 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 10:19:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:33,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:19:33,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:33,964 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 10:19:33,965 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:33,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:33,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [733720428] [2023-12-25 10:19:33,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [733720428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:33,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:33,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:19:33,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747333875] [2023-12-25 10:19:33,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:33,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:19:33,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:33,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:19:33,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:19:33,966 INFO L87 Difference]: Start difference. First operand 244 states and 307 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 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 10:19:34,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:34,681 INFO L93 Difference]: Finished difference Result 386 states and 509 transitions. [2023-12-25 10:19:34,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:19:34,682 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2023-12-25 10:19:34,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:34,683 INFO L225 Difference]: With dead ends: 386 [2023-12-25 10:19:34,683 INFO L226 Difference]: Without dead ends: 298 [2023-12-25 10:19:34,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 53 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 10:19:34,684 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 821 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:34,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 718 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 10:19:34,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-25 10:19:34,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-25 10:19:34,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.3133047210300428) internal successors, (306), 243 states have internal predecessors, (306), 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 10:19:34,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 306 transitions. [2023-12-25 10:19:34,708 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 306 transitions. Word has length 60 [2023-12-25 10:19:34,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:34,708 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 306 transitions. [2023-12-25 10:19:34,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 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 10:19:34,709 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 306 transitions. [2023-12-25 10:19:34,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-25 10:19:34,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:34,709 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] [2023-12-25 10:19:34,714 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 (7)] Ended with exit code 0 [2023-12-25 10:19:34,913 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 10:19:34,913 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:34,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:34,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1013492058, now seen corresponding path program 1 times [2023-12-25 10:19:34,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:34,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304416669] [2023-12-25 10:19:34,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:34,914 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 10:19:34,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:34,917 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 10:19:34,940 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 10:19:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:35,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 10:19:35,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:35,229 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 10:19:35,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:35,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:35,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304416669] [2023-12-25 10:19:35,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1304416669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:35,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:35,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 10:19:35,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770079115] [2023-12-25 10:19:35,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:35,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 10:19:35,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:35,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 10:19:35,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 10:19:35,230 INFO L87 Difference]: Start difference. First operand 244 states and 306 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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 10:19:35,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:35,628 INFO L93 Difference]: Finished difference Result 377 states and 481 transitions. [2023-12-25 10:19:35,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 10:19:35,628 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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 60 [2023-12-25 10:19:35,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:35,629 INFO L225 Difference]: With dead ends: 377 [2023-12-25 10:19:35,630 INFO L226 Difference]: Without dead ends: 244 [2023-12-25 10:19:35,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 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 10:19:35,630 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 1094 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:35,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 348 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 10:19:35,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-12-25 10:19:35,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2023-12-25 10:19:35,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.3090128755364807) internal successors, (305), 243 states have internal predecessors, (305), 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 10:19:35,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 305 transitions. [2023-12-25 10:19:35,634 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 305 transitions. Word has length 60 [2023-12-25 10:19:35,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:35,634 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 305 transitions. [2023-12-25 10:19:35,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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 10:19:35,635 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 305 transitions. [2023-12-25 10:19:35,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 10:19:35,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:35,635 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] [2023-12-25 10:19:35,640 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 (8)] Ended with exit code 0 [2023-12-25 10:19:35,835 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 10:19:35,836 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:35,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:35,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1005199851, now seen corresponding path program 1 times [2023-12-25 10:19:35,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:35,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501905195] [2023-12-25 10:19:35,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:35,837 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 10:19:35,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:35,840 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 10:19:35,841 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 10:19:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:35,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:19:35,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:36,264 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 10:19:36,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:36,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:36,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501905195] [2023-12-25 10:19:36,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [501905195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:36,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:36,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:19:36,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871754150] [2023-12-25 10:19:36,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:36,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:19:36,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:36,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:19:36,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:19:36,266 INFO L87 Difference]: Start difference. First operand 244 states and 305 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 10:19:36,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:36,993 INFO L93 Difference]: Finished difference Result 315 states and 403 transitions. [2023-12-25 10:19:36,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:19:36,993 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-12-25 10:19:36,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:36,994 INFO L225 Difference]: With dead ends: 315 [2023-12-25 10:19:36,994 INFO L226 Difference]: Without dead ends: 298 [2023-12-25 10:19:36,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 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 10:19:36,995 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 746 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:36,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 781 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 10:19:36,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-25 10:19:36,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-25 10:19:36,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.3047210300429184) internal successors, (304), 243 states have internal predecessors, (304), 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 10:19:36,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 304 transitions. [2023-12-25 10:19:36,999 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 304 transitions. Word has length 62 [2023-12-25 10:19:36,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:36,999 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 304 transitions. [2023-12-25 10:19:36,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 10:19:36,999 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 304 transitions. [2023-12-25 10:19:37,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 10:19:37,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:37,000 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] [2023-12-25 10:19:37,005 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 (9)] Forceful destruction successful, exit code 0 [2023-12-25 10:19:37,202 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 10:19:37,203 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:37,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:37,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1319054290, now seen corresponding path program 1 times [2023-12-25 10:19:37,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:37,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124167830] [2023-12-25 10:19:37,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:37,204 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 10:19:37,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:37,205 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 10:19:37,207 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 10:19:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:37,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:19:37,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:37,632 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 10:19:37,632 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:37,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:37,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124167830] [2023-12-25 10:19:37,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [124167830] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:37,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:37,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:19:37,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093790915] [2023-12-25 10:19:37,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:37,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:19:37,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:37,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:19:37,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:19:37,634 INFO L87 Difference]: Start difference. First operand 244 states and 304 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 10:19:38,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:38,396 INFO L93 Difference]: Finished difference Result 303 states and 388 transitions. [2023-12-25 10:19:38,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:19:38,396 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-12-25 10:19:38,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:38,397 INFO L225 Difference]: With dead ends: 303 [2023-12-25 10:19:38,397 INFO L226 Difference]: Without dead ends: 298 [2023-12-25 10:19:38,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 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 10:19:38,398 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 985 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:38,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 772 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 10:19:38,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-25 10:19:38,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-25 10:19:38,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.3004291845493563) internal successors, (303), 243 states have internal predecessors, (303), 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 10:19:38,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 303 transitions. [2023-12-25 10:19:38,402 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 303 transitions. Word has length 62 [2023-12-25 10:19:38,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:38,402 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 303 transitions. [2023-12-25 10:19:38,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 10:19:38,402 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 303 transitions. [2023-12-25 10:19:38,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 10:19:38,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:38,403 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] [2023-12-25 10:19:38,414 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 10:19:38,605 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 10:19:38,606 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:38,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:38,606 INFO L85 PathProgramCache]: Analyzing trace with hash -806955644, now seen corresponding path program 1 times [2023-12-25 10:19:38,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:38,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602952588] [2023-12-25 10:19:38,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:38,607 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 10:19:38,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:38,608 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 10:19:38,641 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 10:19:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:38,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:19:38,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:39,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:19:39,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:39,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:39,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602952588] [2023-12-25 10:19:39,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602952588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:39,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:39,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:19:39,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502134582] [2023-12-25 10:19:39,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:39,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:19:39,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:39,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:19:39,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:19:39,013 INFO L87 Difference]: Start difference. First operand 244 states and 303 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 10:19:39,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:39,677 INFO L93 Difference]: Finished difference Result 392 states and 510 transitions. [2023-12-25 10:19:39,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:19:39,678 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-12-25 10:19:39,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:39,679 INFO L225 Difference]: With dead ends: 392 [2023-12-25 10:19:39,679 INFO L226 Difference]: Without dead ends: 298 [2023-12-25 10:19:39,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 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 10:19:39,679 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 790 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:39,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 754 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 10:19:39,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-25 10:19:39,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-25 10:19:39,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.296137339055794) internal successors, (302), 243 states have internal predecessors, (302), 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 10:19:39,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 302 transitions. [2023-12-25 10:19:39,683 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 302 transitions. Word has length 62 [2023-12-25 10:19:39,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:39,683 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 302 transitions. [2023-12-25 10:19:39,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 10:19:39,683 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 302 transitions. [2023-12-25 10:19:39,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 10:19:39,684 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:39,684 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] [2023-12-25 10:19:39,691 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 10:19:39,891 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 10:19:39,891 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:39,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:39,892 INFO L85 PathProgramCache]: Analyzing trace with hash 2033918897, now seen corresponding path program 1 times [2023-12-25 10:19:39,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:39,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620769741] [2023-12-25 10:19:39,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:39,892 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 10:19:39,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:39,894 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 10:19:39,927 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 (12)] Waiting until timeout for monitored process [2023-12-25 10:19:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:39,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:19:39,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:40,295 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 10:19:40,295 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:40,295 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:40,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620769741] [2023-12-25 10:19:40,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620769741] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:40,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:40,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:19:40,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323119670] [2023-12-25 10:19:40,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:40,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:19:40,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:40,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:19:40,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:19:40,296 INFO L87 Difference]: Start difference. First operand 244 states and 302 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 10:19:40,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:40,901 INFO L93 Difference]: Finished difference Result 369 states and 481 transitions. [2023-12-25 10:19:40,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:19:40,901 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-12-25 10:19:40,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:40,902 INFO L225 Difference]: With dead ends: 369 [2023-12-25 10:19:40,902 INFO L226 Difference]: Without dead ends: 298 [2023-12-25 10:19:40,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 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 10:19:40,904 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 868 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:40,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 688 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 10:19:40,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-25 10:19:40,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-25 10:19:40,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.2918454935622317) internal successors, (301), 243 states have internal predecessors, (301), 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 10:19:40,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 301 transitions. [2023-12-25 10:19:40,907 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 301 transitions. Word has length 62 [2023-12-25 10:19:40,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:40,907 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 301 transitions. [2023-12-25 10:19:40,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 10:19:40,908 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 301 transitions. [2023-12-25 10:19:40,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 10:19:40,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:40,908 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] [2023-12-25 10:19:40,913 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 (12)] Ended with exit code 0 [2023-12-25 10:19:41,111 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 10:19:41,112 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:41,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:41,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1443459928, now seen corresponding path program 1 times [2023-12-25 10:19:41,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:41,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576807265] [2023-12-25 10:19:41,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:41,113 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 10:19:41,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:41,114 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 10:19:41,133 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 10:19:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:41,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:19:41,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:41,592 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 10:19:41,592 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:41,592 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:41,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576807265] [2023-12-25 10:19:41,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576807265] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:41,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:41,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:19:41,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664864385] [2023-12-25 10:19:41,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:41,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:19:41,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:41,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:19:41,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:19:41,593 INFO L87 Difference]: Start difference. First operand 244 states and 301 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 10:19:42,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:42,353 INFO L93 Difference]: Finished difference Result 357 states and 466 transitions. [2023-12-25 10:19:42,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:19:42,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-12-25 10:19:42,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:42,354 INFO L225 Difference]: With dead ends: 357 [2023-12-25 10:19:42,354 INFO L226 Difference]: Without dead ends: 298 [2023-12-25 10:19:42,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 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 10:19:42,355 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 732 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:42,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 771 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 10:19:42,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-25 10:19:42,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-25 10:19:42,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.2875536480686696) internal successors, (300), 243 states have internal predecessors, (300), 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 10:19:42,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 300 transitions. [2023-12-25 10:19:42,358 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 300 transitions. Word has length 62 [2023-12-25 10:19:42,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:42,358 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 300 transitions. [2023-12-25 10:19:42,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 10:19:42,358 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 300 transitions. [2023-12-25 10:19:42,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 10:19:42,359 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:42,359 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] [2023-12-25 10:19:42,361 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 10:19:42,559 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 10:19:42,559 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:42,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:42,560 INFO L85 PathProgramCache]: Analyzing trace with hash 823720425, now seen corresponding path program 1 times [2023-12-25 10:19:42,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:42,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436181997] [2023-12-25 10:19:42,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:42,560 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 10:19:42,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:42,561 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 10:19:42,563 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 10:19:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:42,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:19:42,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:42,982 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 10:19:42,982 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:42,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:42,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436181997] [2023-12-25 10:19:42,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436181997] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:42,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:42,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:19:42,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655600897] [2023-12-25 10:19:42,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:42,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:19:42,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:42,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:19:42,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:19:42,984 INFO L87 Difference]: Start difference. First operand 244 states and 300 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 10:19:43,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:43,685 INFO L93 Difference]: Finished difference Result 303 states and 384 transitions. [2023-12-25 10:19:43,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:19:43,685 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-12-25 10:19:43,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:43,686 INFO L225 Difference]: With dead ends: 303 [2023-12-25 10:19:43,686 INFO L226 Difference]: Without dead ends: 298 [2023-12-25 10:19:43,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 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 10:19:43,687 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 960 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:43,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 772 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 10:19:43,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-25 10:19:43,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-25 10:19:43,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.2832618025751072) internal successors, (299), 243 states have internal predecessors, (299), 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 10:19:43,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 299 transitions. [2023-12-25 10:19:43,690 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 299 transitions. Word has length 62 [2023-12-25 10:19:43,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:43,691 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 299 transitions. [2023-12-25 10:19:43,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 10:19:43,691 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 299 transitions. [2023-12-25 10:19:43,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 10:19:43,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:43,691 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] [2023-12-25 10:19:43,700 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 10:19:43,900 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 10:19:43,901 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:43,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:43,901 INFO L85 PathProgramCache]: Analyzing trace with hash 2020699465, now seen corresponding path program 1 times [2023-12-25 10:19:43,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:43,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978340954] [2023-12-25 10:19:43,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:43,902 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 10:19:43,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:43,903 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 10:19:43,937 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 10:19:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:44,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:19:44,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:44,317 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 10:19:44,318 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:44,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:44,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978340954] [2023-12-25 10:19:44,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978340954] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:44,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:44,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:19:44,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212431786] [2023-12-25 10:19:44,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:44,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:19:44,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:44,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:19:44,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:19:44,319 INFO L87 Difference]: Start difference. First operand 244 states and 299 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 10:19:45,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:45,012 INFO L93 Difference]: Finished difference Result 354 states and 461 transitions. [2023-12-25 10:19:45,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:19:45,012 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-12-25 10:19:45,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:45,013 INFO L225 Difference]: With dead ends: 354 [2023-12-25 10:19:45,014 INFO L226 Difference]: Without dead ends: 298 [2023-12-25 10:19:45,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 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 10:19:45,014 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 1003 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:45,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 739 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 10:19:45,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-25 10:19:45,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-25 10:19:45,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.2789699570815452) internal successors, (298), 243 states have internal predecessors, (298), 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 10:19:45,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 298 transitions. [2023-12-25 10:19:45,018 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 298 transitions. Word has length 62 [2023-12-25 10:19:45,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:45,018 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 298 transitions. [2023-12-25 10:19:45,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 10:19:45,018 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 298 transitions. [2023-12-25 10:19:45,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 10:19:45,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:45,019 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] [2023-12-25 10:19:45,024 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 10:19:45,221 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 10:19:45,221 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:45,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:45,222 INFO L85 PathProgramCache]: Analyzing trace with hash -29192250, now seen corresponding path program 1 times [2023-12-25 10:19:45,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:45,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246423255] [2023-12-25 10:19:45,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:45,222 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 10:19:45,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:45,223 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 10:19:45,224 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 10:19:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:45,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 10:19:45,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:45,776 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 10:19:45,776 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:45,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:45,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246423255] [2023-12-25 10:19:45,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246423255] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:45,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:45,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 10:19:45,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511054721] [2023-12-25 10:19:45,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:45,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 10:19:45,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:45,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 10:19:45,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:19:45,778 INFO L87 Difference]: Start difference. First operand 244 states and 298 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 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 10:19:46,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:46,334 INFO L93 Difference]: Finished difference Result 507 states and 674 transitions. [2023-12-25 10:19:46,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 10:19:46,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 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 64 [2023-12-25 10:19:46,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:46,343 INFO L225 Difference]: With dead ends: 507 [2023-12-25 10:19:46,343 INFO L226 Difference]: Without dead ends: 420 [2023-12-25 10:19:46,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 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 10:19:46,348 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1061 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:46,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 1610 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 10:19:46,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2023-12-25 10:19:46,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 211. [2023-12-25 10:19:46,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 203 states have (on average 1.2807881773399015) internal successors, (260), 210 states have internal predecessors, (260), 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 10:19:46,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 260 transitions. [2023-12-25 10:19:46,355 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 260 transitions. Word has length 64 [2023-12-25 10:19:46,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:46,355 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 260 transitions. [2023-12-25 10:19:46,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 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 10:19:46,356 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 260 transitions. [2023-12-25 10:19:46,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 10:19:46,356 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:46,356 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] [2023-12-25 10:19:46,361 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 (16)] Forceful destruction successful, exit code 0 [2023-12-25 10:19:46,569 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 10:19:46,570 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:46,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:46,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1085248927, now seen corresponding path program 1 times [2023-12-25 10:19:46,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:46,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050749299] [2023-12-25 10:19:46,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:46,570 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 10:19:46,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:46,571 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 10:19:46,573 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 10:19:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:46,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-25 10:19:46,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:48,641 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 10:19:48,642 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:48,642 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:48,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050749299] [2023-12-25 10:19:48,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050749299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:48,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:48,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-25 10:19:48,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54664250] [2023-12-25 10:19:48,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:48,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-25 10:19:48,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:48,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-25 10:19:48,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2023-12-25 10:19:48,643 INFO L87 Difference]: Start difference. First operand 211 states and 260 transitions. Second operand has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 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 10:19:55,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:55,315 INFO L93 Difference]: Finished difference Result 717 states and 924 transitions. [2023-12-25 10:19:55,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-25 10:19:55,316 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 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 64 [2023-12-25 10:19:55,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:55,317 INFO L225 Difference]: With dead ends: 717 [2023-12-25 10:19:55,317 INFO L226 Difference]: Without dead ends: 647 [2023-12-25 10:19:55,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=196, Invalid=734, Unknown=0, NotChecked=0, Total=930 [2023-12-25 10:19:55,318 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 1503 mSDsluCounter, 4652 mSDsCounter, 0 mSdLazyCounter, 2828 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 5158 SdHoareTripleChecker+Invalid, 2828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:55,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 5158 Invalid, 2828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2828 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-12-25 10:19:55,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2023-12-25 10:19:55,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 222. [2023-12-25 10:19:55,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 214 states have (on average 1.280373831775701) internal successors, (274), 221 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 10:19:55,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 274 transitions. [2023-12-25 10:19:55,322 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 274 transitions. Word has length 64 [2023-12-25 10:19:55,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:55,322 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 274 transitions. [2023-12-25 10:19:55,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 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 10:19:55,323 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 274 transitions. [2023-12-25 10:19:55,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 10:19:55,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:55,323 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] [2023-12-25 10:19:55,331 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 (17)] Ended with exit code 0 [2023-12-25 10:19:55,531 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 10:19:55,531 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:55,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:55,532 INFO L85 PathProgramCache]: Analyzing trace with hash 632833740, now seen corresponding path program 1 times [2023-12-25 10:19:55,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:55,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586996393] [2023-12-25 10:19:55,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:55,532 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 10:19:55,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:55,533 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 10:19:55,534 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 10:19:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:55,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 10:19:55,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:56,343 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 10:19:56,343 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:56,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:56,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586996393] [2023-12-25 10:19:56,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1586996393] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:56,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:56,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-25 10:19:56,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811355990] [2023-12-25 10:19:56,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:56,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-25 10:19:56,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:56,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-25 10:19:56,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-25 10:19:56,345 INFO L87 Difference]: Start difference. First operand 222 states and 274 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 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 10:19:56,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:56,842 INFO L93 Difference]: Finished difference Result 418 states and 549 transitions. [2023-12-25 10:19:56,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 10:19:56,842 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 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 64 [2023-12-25 10:19:56,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:56,843 INFO L225 Difference]: With dead ends: 418 [2023-12-25 10:19:56,843 INFO L226 Difference]: Without dead ends: 301 [2023-12-25 10:19:56,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2023-12-25 10:19:56,845 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 1232 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:56,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 838 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 10:19:56,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-12-25 10:19:56,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 159. [2023-12-25 10:19:56,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 155 states have (on average 1.270967741935484) internal successors, (197), 158 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 10:19:56,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 197 transitions. [2023-12-25 10:19:56,860 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 197 transitions. Word has length 64 [2023-12-25 10:19:56,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:56,860 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 197 transitions. [2023-12-25 10:19:56,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 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 10:19:56,861 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 197 transitions. [2023-12-25 10:19:56,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-25 10:19:56,861 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:56,861 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] [2023-12-25 10:19:56,866 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 (18)] Ended with exit code 0 [2023-12-25 10:19:57,061 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 10:19:57,062 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:57,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:57,062 INFO L85 PathProgramCache]: Analyzing trace with hash -776132116, now seen corresponding path program 1 times [2023-12-25 10:19:57,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:57,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312050142] [2023-12-25 10:19:57,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:57,063 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 10:19:57,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:57,064 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 10:19:57,065 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 10:19:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:57,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-25 10:19:57,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:58,022 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 10:19:58,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:58,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:58,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312050142] [2023-12-25 10:19:58,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [312050142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:58,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:58,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-25 10:19:58,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799152921] [2023-12-25 10:19:58,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:58,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 10:19:58,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:58,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 10:19:58,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-25 10:19:58,023 INFO L87 Difference]: Start difference. First operand 159 states and 197 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 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 10:19:58,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:58,924 INFO L93 Difference]: Finished difference Result 365 states and 488 transitions. [2023-12-25 10:19:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 10:19:58,925 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 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 65 [2023-12-25 10:19:58,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:58,925 INFO L225 Difference]: With dead ends: 365 [2023-12-25 10:19:58,925 INFO L226 Difference]: Without dead ends: 295 [2023-12-25 10:19:58,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2023-12-25 10:19:58,926 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 861 mSDsluCounter, 1280 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:58,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1498 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 10:19:58,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-12-25 10:19:58,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 132. [2023-12-25 10:19:58,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 130 states have (on average 1.2615384615384615) internal successors, (164), 131 states have internal predecessors, (164), 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 10:19:58,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 164 transitions. [2023-12-25 10:19:58,929 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 164 transitions. Word has length 65 [2023-12-25 10:19:58,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:58,929 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 164 transitions. [2023-12-25 10:19:58,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 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 10:19:58,929 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 164 transitions. [2023-12-25 10:19:58,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-25 10:19:58,929 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:58,929 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] [2023-12-25 10:19:58,946 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 10:19:59,132 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 10:19:59,132 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:59,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:59,132 INFO L85 PathProgramCache]: Analyzing trace with hash 2125205281, now seen corresponding path program 1 times [2023-12-25 10:19:59,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:59,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188194112] [2023-12-25 10:19:59,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:59,133 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 10:19:59,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:59,134 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 10:19:59,135 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 10:19:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:59,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:19:59,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:59,543 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 10:19:59,543 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:19:59,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:59,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188194112] [2023-12-25 10:19:59,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188194112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:19:59,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:19:59,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:19:59,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509637905] [2023-12-25 10:19:59,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:19:59,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:19:59,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:59,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:19:59,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:19:59,544 INFO L87 Difference]: Start difference. First operand 132 states and 164 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 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 10:19:59,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:59,888 INFO L93 Difference]: Finished difference Result 204 states and 264 transitions. [2023-12-25 10:19:59,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:19:59,888 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 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 65 [2023-12-25 10:19:59,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:59,889 INFO L225 Difference]: With dead ends: 204 [2023-12-25 10:19:59,889 INFO L226 Difference]: Without dead ends: 132 [2023-12-25 10:19:59,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 58 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 10:19:59,890 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 441 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:59,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 278 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 10:19:59,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-12-25 10:19:59,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2023-12-25 10:19:59,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 130 states have (on average 1.2538461538461538) internal successors, (163), 131 states have internal predecessors, (163), 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 10:19:59,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 163 transitions. [2023-12-25 10:19:59,892 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 163 transitions. Word has length 65 [2023-12-25 10:19:59,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:59,892 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 163 transitions. [2023-12-25 10:19:59,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 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 10:19:59,892 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 163 transitions. [2023-12-25 10:19:59,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-25 10:19:59,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:59,892 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] [2023-12-25 10:19:59,895 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 (20)] Ended with exit code 0 [2023-12-25 10:20:00,093 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 10:20:00,093 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:20:00,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:20:00,093 INFO L85 PathProgramCache]: Analyzing trace with hash 846749532, now seen corresponding path program 1 times [2023-12-25 10:20:00,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:20:00,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988067405] [2023-12-25 10:20:00,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:20:00,094 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 10:20:00,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:20:00,095 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 10:20:00,096 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 10:20:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:20:00,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-25 10:20:00,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:20:04,830 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 10:20:04,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:20:04,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:20:04,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988067405] [2023-12-25 10:20:04,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1988067405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:20:04,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:20:04,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-25 10:20:04,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812389698] [2023-12-25 10:20:04,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:20:04,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-25 10:20:04,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:20:04,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-25 10:20:04,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2023-12-25 10:20:04,832 INFO L87 Difference]: Start difference. First operand 132 states and 163 transitions. Second operand has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 22 states have internal predecessors, (67), 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 10:20:30,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:20:30,737 INFO L93 Difference]: Finished difference Result 573 states and 772 transitions. [2023-12-25 10:20:30,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-25 10:20:30,737 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 22 states have internal predecessors, (67), 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 67 [2023-12-25 10:20:30,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:20:30,739 INFO L225 Difference]: With dead ends: 573 [2023-12-25 10:20:30,739 INFO L226 Difference]: Without dead ends: 506 [2023-12-25 10:20:30,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=177, Invalid=879, Unknown=0, NotChecked=0, Total=1056 [2023-12-25 10:20:30,740 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 886 mSDsluCounter, 4301 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 4682 SdHoareTripleChecker+Invalid, 2235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2023-12-25 10:20:30,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 4682 Invalid, 2235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2234 Invalid, 0 Unknown, 0 Unchecked, 23.5s Time] [2023-12-25 10:20:30,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2023-12-25 10:20:30,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 148. [2023-12-25 10:20:30,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 146 states have (on average 1.2465753424657535) internal successors, (182), 147 states have internal predecessors, (182), 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 10:20:30,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 182 transitions. [2023-12-25 10:20:30,743 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 182 transitions. Word has length 67 [2023-12-25 10:20:30,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:20:30,743 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 182 transitions. [2023-12-25 10:20:30,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 22 states have internal predecessors, (67), 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 10:20:30,743 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 182 transitions. [2023-12-25 10:20:30,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-25 10:20:30,743 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:20:30,743 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] [2023-12-25 10:20:30,749 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 10:20:30,946 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 10:20:30,946 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:20:30,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:20:30,947 INFO L85 PathProgramCache]: Analyzing trace with hash 766856175, now seen corresponding path program 1 times [2023-12-25 10:20:30,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:20:30,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190565571] [2023-12-25 10:20:30,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:20:30,947 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 10:20:30,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:20:30,949 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 10:20:30,950 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 (22)] Waiting until timeout for monitored process [2023-12-25 10:20:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:20:31,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 10:20:31,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:20:31,427 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 10:20:31,427 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:20:31,427 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:20:31,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190565571] [2023-12-25 10:20:31,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1190565571] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:20:31,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:20:31,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 10:20:31,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3606139] [2023-12-25 10:20:31,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:20:31,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 10:20:31,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:20:31,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 10:20:31,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:20:31,428 INFO L87 Difference]: Start difference. First operand 148 states and 182 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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 10:20:31,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:20:31,821 INFO L93 Difference]: Finished difference Result 215 states and 278 transitions. [2023-12-25 10:20:31,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 10:20:31,822 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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 68 [2023-12-25 10:20:31,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:20:31,822 INFO L225 Difference]: With dead ends: 215 [2023-12-25 10:20:31,823 INFO L226 Difference]: Without dead ends: 209 [2023-12-25 10:20:31,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 60 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 10:20:31,823 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 483 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 10:20:31,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 888 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 10:20:31,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-25 10:20:31,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 141. [2023-12-25 10:20:31,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.25) internal successors, (175), 140 states have internal predecessors, (175), 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 10:20:31,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 175 transitions. [2023-12-25 10:20:31,826 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 175 transitions. Word has length 68 [2023-12-25 10:20:31,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:20:31,826 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 175 transitions. [2023-12-25 10:20:31,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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 10:20:31,826 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 175 transitions. [2023-12-25 10:20:31,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-25 10:20:31,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:20:31,826 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:20:31,829 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 10:20:32,029 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 10:20:32,029 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:20:32,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:20:32,030 INFO L85 PathProgramCache]: Analyzing trace with hash -482876882, now seen corresponding path program 1 times [2023-12-25 10:20:32,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:20:32,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481355607] [2023-12-25 10:20:32,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:20:32,030 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 10:20:32,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:20:32,031 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 10:20:32,033 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 10:20:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:20:32,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:20:32,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:20:32,501 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 10:20:32,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:20:32,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:20:32,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481355607] [2023-12-25 10:20:32,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481355607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:20:32,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:20:32,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:20:32,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365270420] [2023-12-25 10:20:32,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:20:32,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:20:32,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:20:32,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:20:32,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:20:32,503 INFO L87 Difference]: Start difference. First operand 141 states and 175 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 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 10:20:32,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:20:32,824 INFO L93 Difference]: Finished difference Result 201 states and 261 transitions. [2023-12-25 10:20:32,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:20:32,826 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 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 90 [2023-12-25 10:20:32,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:20:32,826 INFO L225 Difference]: With dead ends: 201 [2023-12-25 10:20:32,826 INFO L226 Difference]: Without dead ends: 141 [2023-12-25 10:20:32,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 83 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 10:20:32,828 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 408 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 10:20:32,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 272 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 10:20:32,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-25 10:20:32,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2023-12-25 10:20:32,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.2357142857142858) internal successors, (173), 140 states have internal predecessors, (173), 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 10:20:32,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 173 transitions. [2023-12-25 10:20:32,830 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 173 transitions. Word has length 90 [2023-12-25 10:20:32,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:20:32,830 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 173 transitions. [2023-12-25 10:20:32,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 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 10:20:32,831 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 173 transitions. [2023-12-25 10:20:32,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-25 10:20:32,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:20:32,846 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:20:32,849 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 10:20:33,049 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 10:20:33,049 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:20:33,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:20:33,049 INFO L85 PathProgramCache]: Analyzing trace with hash -696431914, now seen corresponding path program 1 times [2023-12-25 10:20:33,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:20:33,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629194072] [2023-12-25 10:20:33,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:20:33,050 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 10:20:33,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:20:33,051 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 10:20:33,052 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 10:20:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:20:33,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:20:33,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:20:33,189 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 10:20:33,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:20:33,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:20:33,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629194072] [2023-12-25 10:20:33,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629194072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:20:33,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:20:33,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:20:33,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088874191] [2023-12-25 10:20:33,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:20:33,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:20:33,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:20:33,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:20:33,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:20:33,190 INFO L87 Difference]: Start difference. First operand 141 states and 173 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 10:20:33,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:20:33,204 INFO L93 Difference]: Finished difference Result 241 states and 321 transitions. [2023-12-25 10:20:33,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:20:33,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2023-12-25 10:20:33,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:20:33,205 INFO L225 Difference]: With dead ends: 241 [2023-12-25 10:20:33,205 INFO L226 Difference]: Without dead ends: 187 [2023-12-25 10:20:33,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 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 10:20:33,206 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 89 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 303 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 10:20:33,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 303 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:20:33,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-12-25 10:20:33,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 185. [2023-12-25 10:20:33,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 1.298913043478261) internal successors, (239), 184 states have internal predecessors, (239), 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 10:20:33,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 239 transitions. [2023-12-25 10:20:33,208 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 239 transitions. Word has length 93 [2023-12-25 10:20:33,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:20:33,209 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 239 transitions. [2023-12-25 10:20:33,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 10:20:33,209 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 239 transitions. [2023-12-25 10:20:33,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-25 10:20:33,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:20:33,209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:20:33,213 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 (24)] Ended with exit code 0 [2023-12-25 10:20:33,412 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 10:20:33,412 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:20:33,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:20:33,412 INFO L85 PathProgramCache]: Analyzing trace with hash -317932261, now seen corresponding path program 1 times [2023-12-25 10:20:33,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:20:33,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804820835] [2023-12-25 10:20:33,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:20:33,413 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 10:20:33,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:20:33,414 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 10:20:33,415 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 10:20:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:20:33,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:20:33,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:20:33,544 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 10:20:33,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:20:33,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:20:33,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1804820835] [2023-12-25 10:20:33,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1804820835] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:20:33,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:20:33,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:20:33,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052885462] [2023-12-25 10:20:33,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:20:33,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:20:33,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:20:33,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:20:33,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:20:33,546 INFO L87 Difference]: Start difference. First operand 185 states and 239 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 10:20:33,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:20:33,559 INFO L93 Difference]: Finished difference Result 365 states and 507 transitions. [2023-12-25 10:20:33,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:20:33,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2023-12-25 10:20:33,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:20:33,561 INFO L225 Difference]: With dead ends: 365 [2023-12-25 10:20:33,561 INFO L226 Difference]: Without dead ends: 267 [2023-12-25 10:20:33,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 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 10:20:33,561 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 81 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 304 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 10:20:33,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 304 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:20:33,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-12-25 10:20:33,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 265. [2023-12-25 10:20:33,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 1.356060606060606) internal successors, (358), 264 states have internal predecessors, (358), 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 10:20:33,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 358 transitions. [2023-12-25 10:20:33,565 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 358 transitions. Word has length 94 [2023-12-25 10:20:33,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:20:33,565 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 358 transitions. [2023-12-25 10:20:33,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 10:20:33,565 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 358 transitions. [2023-12-25 10:20:33,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 10:20:33,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:20:33,566 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:20:33,584 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 (25)] Ended with exit code 0 [2023-12-25 10:20:33,768 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 10:20:33,769 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:20:33,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:20:33,769 INFO L85 PathProgramCache]: Analyzing trace with hash 138290890, now seen corresponding path program 1 times [2023-12-25 10:20:33,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:20:33,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139669847] [2023-12-25 10:20:33,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:20:33,770 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 10:20:33,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:20:33,771 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 10:20:33,772 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 10:20:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:20:33,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:20:33,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:20:33,912 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 10:20:33,913 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:20:33,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:20:33,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139669847] [2023-12-25 10:20:33,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139669847] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:20:33,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:20:33,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:20:33,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854520481] [2023-12-25 10:20:33,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:20:33,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:20:33,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:20:33,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:20:33,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:20:33,914 INFO L87 Difference]: Start difference. First operand 265 states and 358 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 10:20:33,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:20:33,927 INFO L93 Difference]: Finished difference Result 589 states and 840 transitions. [2023-12-25 10:20:33,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:20:33,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2023-12-25 10:20:33,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:20:33,928 INFO L225 Difference]: With dead ends: 589 [2023-12-25 10:20:33,929 INFO L226 Difference]: Without dead ends: 411 [2023-12-25 10:20:33,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 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 10:20:33,929 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 73 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 305 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 10:20:33,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 305 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:20:33,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2023-12-25 10:20:33,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 409. [2023-12-25 10:20:33,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 408 states have (on average 1.3970588235294117) internal successors, (570), 408 states have internal predecessors, (570), 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 10:20:33,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 570 transitions. [2023-12-25 10:20:33,934 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 570 transitions. Word has length 95 [2023-12-25 10:20:33,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:20:33,934 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 570 transitions. [2023-12-25 10:20:33,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 10:20:33,935 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 570 transitions. [2023-12-25 10:20:33,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 10:20:33,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:20:33,935 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:20:33,949 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 10:20:34,139 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 10:20:34,140 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:20:34,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:20:34,140 INFO L85 PathProgramCache]: Analyzing trace with hash -347860913, now seen corresponding path program 1 times [2023-12-25 10:20:34,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:20:34,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996157928] [2023-12-25 10:20:34,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:20:34,141 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 10:20:34,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:20:34,149 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 10:20:34,177 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 10:20:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:20:34,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 10:20:34,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:20:34,769 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 10:20:34,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:20:34,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:20:34,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996157928] [2023-12-25 10:20:34,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996157928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:20:34,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:20:34,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 10:20:34,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400541910] [2023-12-25 10:20:34,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:20:34,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 10:20:34,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:20:34,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 10:20:34,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:20:34,771 INFO L87 Difference]: Start difference. First operand 409 states and 570 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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 10:20:34,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:20:34,859 INFO L93 Difference]: Finished difference Result 2019 states and 2955 transitions. [2023-12-25 10:20:34,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 10:20:34,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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 96 [2023-12-25 10:20:34,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:20:34,864 INFO L225 Difference]: With dead ends: 2019 [2023-12-25 10:20:34,864 INFO L226 Difference]: Without dead ends: 1697 [2023-12-25 10:20:34,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:20:34,865 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 359 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:20:34,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 675 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:20:34,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2023-12-25 10:20:34,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1049. [2023-12-25 10:20:34,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 1048 states have (on average 1.4293893129770991) internal successors, (1498), 1048 states have internal predecessors, (1498), 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 10:20:34,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 1498 transitions. [2023-12-25 10:20:34,901 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 1498 transitions. Word has length 96 [2023-12-25 10:20:34,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:20:34,901 INFO L495 AbstractCegarLoop]: Abstraction has 1049 states and 1498 transitions. [2023-12-25 10:20:34,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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 10:20:34,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 1498 transitions. [2023-12-25 10:20:34,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-25 10:20:34,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:20:34,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:20:34,906 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 10:20:35,104 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 10:20:35,105 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:20:35,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:20:35,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1681607169, now seen corresponding path program 1 times [2023-12-25 10:20:35,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:20:35,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537247145] [2023-12-25 10:20:35,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:20:35,106 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 10:20:35,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:20:35,107 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 10:20:35,108 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 (28)] Waiting until timeout for monitored process [2023-12-25 10:20:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:20:35,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 10:20:35,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:20:35,323 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 10:20:35,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:20:35,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:20:35,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537247145] [2023-12-25 10:20:35,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537247145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:20:35,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:20:35,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:20:35,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100529678] [2023-12-25 10:20:35,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:20:35,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 10:20:35,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:20:35,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 10:20:35,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 10:20:35,324 INFO L87 Difference]: Start difference. First operand 1049 states and 1498 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 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 10:20:35,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:20:35,351 INFO L93 Difference]: Finished difference Result 2845 states and 4084 transitions. [2023-12-25 10:20:35,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 10:20:35,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 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 98 [2023-12-25 10:20:35,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:20:35,355 INFO L225 Difference]: With dead ends: 2845 [2023-12-25 10:20:35,355 INFO L226 Difference]: Without dead ends: 1883 [2023-12-25 10:20:35,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 95 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 10:20:35,357 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 51 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 365 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 10:20:35,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 365 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:20:35,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2023-12-25 10:20:35,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1857. [2023-12-25 10:20:35,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1857 states, 1856 states have (on average 1.3954741379310345) internal successors, (2590), 1856 states have internal predecessors, (2590), 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 10:20:35,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1857 states to 1857 states and 2590 transitions. [2023-12-25 10:20:35,383 INFO L78 Accepts]: Start accepts. Automaton has 1857 states and 2590 transitions. Word has length 98 [2023-12-25 10:20:35,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:20:35,383 INFO L495 AbstractCegarLoop]: Abstraction has 1857 states and 2590 transitions. [2023-12-25 10:20:35,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 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 10:20:35,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1857 states and 2590 transitions. [2023-12-25 10:20:35,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 10:20:35,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:20:35,384 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:20:35,389 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 (28)] Ended with exit code 0 [2023-12-25 10:20:35,586 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 10:20:35,587 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:20:35,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:20:35,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1025766666, now seen corresponding path program 1 times [2023-12-25 10:20:35,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:20:35,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769624718] [2023-12-25 10:20:35,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:20:35,588 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 10:20:35,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:20:35,589 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 10:20:35,590 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 10:20:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:20:35,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 10:20:35,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:20:35,725 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 10:20:35,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:20:35,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:20:35,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769624718] [2023-12-25 10:20:35,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769624718] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:20:35,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:20:35,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 10:20:35,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830891024] [2023-12-25 10:20:35,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:20:35,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:20:35,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:20:35,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:20:35,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:20:35,726 INFO L87 Difference]: Start difference. First operand 1857 states and 2590 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 10:20:35,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:20:35,781 INFO L93 Difference]: Finished difference Result 3367 states and 4672 transitions. [2023-12-25 10:20:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 10:20:35,781 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 99 [2023-12-25 10:20:35,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:20:35,788 INFO L225 Difference]: With dead ends: 3367 [2023-12-25 10:20:35,788 INFO L226 Difference]: Without dead ends: 3365 [2023-12-25 10:20:35,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 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 10:20:35,790 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 256 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 626 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 10:20:35,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 626 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:20:35,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3365 states. [2023-12-25 10:20:35,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3365 to 1953. [2023-12-25 10:20:35,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1953 states, 1952 states have (on average 1.3719262295081966) internal successors, (2678), 1952 states have internal predecessors, (2678), 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 10:20:35,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1953 states to 1953 states and 2678 transitions. [2023-12-25 10:20:35,813 INFO L78 Accepts]: Start accepts. Automaton has 1953 states and 2678 transitions. Word has length 99 [2023-12-25 10:20:35,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:20:35,813 INFO L495 AbstractCegarLoop]: Abstraction has 1953 states and 2678 transitions. [2023-12-25 10:20:35,813 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 10:20:35,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1953 states and 2678 transitions. [2023-12-25 10:20:35,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 10:20:35,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:20:35,814 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:20:35,816 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 10:20:36,016 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 10:20:36,016 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:20:36,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:20:36,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1174018370, now seen corresponding path program 1 times [2023-12-25 10:20:36,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:20:36,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1846833187] [2023-12-25 10:20:36,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:20:36,017 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 10:20:36,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:20:36,018 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 10:20:36,020 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 10:20:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:20:36,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:20:36,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:20:36,157 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 10:20:36,158 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:20:36,158 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:20:36,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1846833187] [2023-12-25 10:20:36,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1846833187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:20:36,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:20:36,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:20:36,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639464735] [2023-12-25 10:20:36,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:20:36,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:20:36,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:20:36,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:20:36,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:20:36,160 INFO L87 Difference]: Start difference. First operand 1953 states and 2678 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 10:20:36,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:20:36,178 INFO L93 Difference]: Finished difference Result 3784 states and 5276 transitions. [2023-12-25 10:20:36,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:20:36,179 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 10:20:36,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:20:36,184 INFO L225 Difference]: With dead ends: 3784 [2023-12-25 10:20:36,184 INFO L226 Difference]: Without dead ends: 2749 [2023-12-25 10:20:36,186 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 10:20:36,186 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 93 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 306 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 10:20:36,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 306 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:20:36,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2023-12-25 10:20:36,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 2747. [2023-12-25 10:20:36,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2747 states, 2746 states have (on average 1.3736343772760378) internal successors, (3772), 2746 states have internal predecessors, (3772), 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 10:20:36,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2747 states to 2747 states and 3772 transitions. [2023-12-25 10:20:36,211 INFO L78 Accepts]: Start accepts. Automaton has 2747 states and 3772 transitions. Word has length 99 [2023-12-25 10:20:36,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:20:36,211 INFO L495 AbstractCegarLoop]: Abstraction has 2747 states and 3772 transitions. [2023-12-25 10:20:36,211 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 10:20:36,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2747 states and 3772 transitions. [2023-12-25 10:20:36,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 10:20:36,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:20:36,213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:20:36,218 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 (30)] Forceful destruction successful, exit code 0 [2023-12-25 10:20:36,415 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 10:20:36,416 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:20:36,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:20:36,416 INFO L85 PathProgramCache]: Analyzing trace with hash 392690215, now seen corresponding path program 1 times [2023-12-25 10:20:36,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:20:36,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767483950] [2023-12-25 10:20:36,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:20:36,417 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 10:20:36,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:20:36,418 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 10:20:36,418 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 10:20:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:20:36,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:20:36,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:20:36,587 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:20:36,587 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:20:36,587 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:20:36,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767483950] [2023-12-25 10:20:36,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767483950] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:20:36,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:20:36,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:20:36,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43541510] [2023-12-25 10:20:36,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:20:36,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:20:36,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:20:36,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:20:36,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:20:36,589 INFO L87 Difference]: Start difference. First operand 2747 states and 3772 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 10:20:36,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:20:36,612 INFO L93 Difference]: Finished difference Result 4609 states and 6381 transitions. [2023-12-25 10:20:36,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:20:36,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 124 [2023-12-25 10:20:36,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:20:36,623 INFO L225 Difference]: With dead ends: 4609 [2023-12-25 10:20:36,623 INFO L226 Difference]: Without dead ends: 1951 [2023-12-25 10:20:36,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 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 10:20:36,638 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 68 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 304 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 10:20:36,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 304 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:20:36,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2023-12-25 10:20:36,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1949. [2023-12-25 10:20:36,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1949 states, 1948 states have (on average 1.3747433264887063) internal successors, (2678), 1948 states have internal predecessors, (2678), 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 10:20:36,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 2678 transitions. [2023-12-25 10:20:36,672 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 2678 transitions. Word has length 124 [2023-12-25 10:20:36,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:20:36,673 INFO L495 AbstractCegarLoop]: Abstraction has 1949 states and 2678 transitions. [2023-12-25 10:20:36,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 10:20:36,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 2678 transitions. [2023-12-25 10:20:36,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 10:20:36,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:20:36,674 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:20:36,694 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 (31)] Forceful destruction successful, exit code 0 [2023-12-25 10:20:36,874 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 10:20:36,875 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:20:36,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:20:36,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1756360535, now seen corresponding path program 1 times [2023-12-25 10:20:36,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:20:36,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907594444] [2023-12-25 10:20:36,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:20:36,876 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 10:20:36,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:20:36,892 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 10:20:36,897 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 10:20:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:20:37,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 10:20:37,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:20:37,779 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:20:37,779 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:20:38,109 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:20:38,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:20:38,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907594444] [2023-12-25 10:20:38,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1907594444] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:20:38,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:20:38,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-12-25 10:20:38,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016093464] [2023-12-25 10:20:38,110 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:20:38,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-25 10:20:38,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:20:38,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-25 10:20:38,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2023-12-25 10:20:38,111 INFO L87 Difference]: Start difference. First operand 1949 states and 2678 transitions. Second operand has 24 states, 24 states have (on average 9.5) internal successors, (228), 23 states have internal predecessors, (228), 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 10:20:44,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:20:44,023 INFO L93 Difference]: Finished difference Result 11470 states and 15593 transitions. [2023-12-25 10:20:44,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2023-12-25 10:20:44,023 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.5) internal successors, (228), 23 states have internal predecessors, (228), 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 125 [2023-12-25 10:20:44,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:20:44,054 INFO L225 Difference]: With dead ends: 11470 [2023-12-25 10:20:44,054 INFO L226 Difference]: Without dead ends: 9644 [2023-12-25 10:20:44,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2990 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1992, Invalid=8310, Unknown=0, NotChecked=0, Total=10302 [2023-12-25 10:20:44,060 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 3646 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3646 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 1899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:20:44,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3646 Valid, 1921 Invalid, 1899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-25 10:20:44,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9644 states. [2023-12-25 10:20:44,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9644 to 1949. [2023-12-25 10:20:44,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1949 states, 1948 states have (on average 1.3685831622176592) internal successors, (2666), 1948 states have internal predecessors, (2666), 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 10:20:44,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 2666 transitions. [2023-12-25 10:20:44,119 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 2666 transitions. Word has length 125 [2023-12-25 10:20:44,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:20:44,119 INFO L495 AbstractCegarLoop]: Abstraction has 1949 states and 2666 transitions. [2023-12-25 10:20:44,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.5) internal successors, (228), 23 states have internal predecessors, (228), 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 10:20:44,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 2666 transitions. [2023-12-25 10:20:44,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 10:20:44,120 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:20:44,120 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:20:44,144 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 (32)] Ended with exit code 0 [2023-12-25 10:20:44,323 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 10:20:44,323 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:20:44,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:20:44,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1015901527, now seen corresponding path program 1 times [2023-12-25 10:20:44,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:20:44,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360092328] [2023-12-25 10:20:44,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:20:44,325 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 10:20:44,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:20:44,330 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 10:20:44,331 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 10:20:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:20:44,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 10:20:44,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:20:45,210 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:20:45,210 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:20:45,499 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:20:45,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:20:45,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360092328] [2023-12-25 10:20:45,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360092328] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:20:45,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:20:45,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-12-25 10:20:45,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310672912] [2023-12-25 10:20:45,500 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:20:45,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-25 10:20:45,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:20:45,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-25 10:20:45,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2023-12-25 10:20:45,501 INFO L87 Difference]: Start difference. First operand 1949 states and 2666 transitions. Second operand has 22 states, 22 states have (on average 10.636363636363637) internal successors, (234), 21 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 10:20:50,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:20:50,255 INFO L93 Difference]: Finished difference Result 10613 states and 14533 transitions. [2023-12-25 10:20:50,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-25 10:20:50,256 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.636363636363637) internal successors, (234), 21 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 125 [2023-12-25 10:20:50,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:20:50,265 INFO L225 Difference]: With dead ends: 10613 [2023-12-25 10:20:50,265 INFO L226 Difference]: Without dead ends: 8787 [2023-12-25 10:20:50,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1398 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1336, Invalid=4516, Unknown=0, NotChecked=0, Total=5852 [2023-12-25 10:20:50,268 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 3477 mSDsluCounter, 1790 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3477 SdHoareTripleChecker+Valid, 2002 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-25 10:20:50,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3477 Valid, 2002 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-25 10:20:50,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8787 states. [2023-12-25 10:20:50,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8787 to 1949. [2023-12-25 10:20:50,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1949 states, 1948 states have (on average 1.3624229979466118) internal successors, (2654), 1948 states have internal predecessors, (2654), 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 10:20:50,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 2654 transitions. [2023-12-25 10:20:50,307 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 2654 transitions. Word has length 125 [2023-12-25 10:20:50,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:20:50,308 INFO L495 AbstractCegarLoop]: Abstraction has 1949 states and 2654 transitions. [2023-12-25 10:20:50,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.636363636363637) internal successors, (234), 21 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 10:20:50,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 2654 transitions. [2023-12-25 10:20:50,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 10:20:50,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:20:50,309 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:20:50,324 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 (33)] Ended with exit code 0 [2023-12-25 10:20:50,511 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 10:20:50,512 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:20:50,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:20:50,512 INFO L85 PathProgramCache]: Analyzing trace with hash 134128319, now seen corresponding path program 1 times [2023-12-25 10:20:50,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:20:50,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840438307] [2023-12-25 10:20:50,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:20:50,512 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 10:20:50,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:20:50,513 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 10:20:50,515 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 10:20:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:20:50,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:20:50,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:20:51,245 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:20:51,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:20:51,445 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:20:51,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:20:51,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840438307] [2023-12-25 10:20:51,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840438307] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:20:51,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:20:51,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 10:20:51,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746660492] [2023-12-25 10:20:51,446 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:20:51,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 10:20:51,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:20:51,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 10:20:51,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 10:20:51,448 INFO L87 Difference]: Start difference. First operand 1949 states and 2654 transitions. Second operand has 16 states, 16 states have (on average 15.0) internal successors, (240), 15 states have internal predecessors, (240), 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 10:20:54,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:20:54,057 INFO L93 Difference]: Finished difference Result 8678 states and 11799 transitions. [2023-12-25 10:20:54,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-25 10:20:54,058 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.0) internal successors, (240), 15 states have internal predecessors, (240), 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 126 [2023-12-25 10:20:54,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:20:54,065 INFO L225 Difference]: With dead ends: 8678 [2023-12-25 10:20:54,066 INFO L226 Difference]: Without dead ends: 6852 [2023-12-25 10:20:54,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1306 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1229, Invalid=3601, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 10:20:54,070 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 1943 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:20:54,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 1094 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 10:20:54,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2023-12-25 10:20:54,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 2033. [2023-12-25 10:20:54,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 2032 states have (on average 1.3533464566929134) internal successors, (2750), 2032 states have internal predecessors, (2750), 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 10:20:54,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 2750 transitions. [2023-12-25 10:20:54,102 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 2750 transitions. Word has length 126 [2023-12-25 10:20:54,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:20:54,102 INFO L495 AbstractCegarLoop]: Abstraction has 2033 states and 2750 transitions. [2023-12-25 10:20:54,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.0) internal successors, (240), 15 states have internal predecessors, (240), 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 10:20:54,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 2750 transitions. [2023-12-25 10:20:54,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-25 10:20:54,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:20:54,103 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:20:54,106 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 10:20:54,306 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 10:20:54,306 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:20:54,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:20:54,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1180795581, now seen corresponding path program 1 times [2023-12-25 10:20:54,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:20:54,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225074995] [2023-12-25 10:20:54,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:20:54,307 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 10:20:54,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:20:54,308 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 10:20:54,309 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 10:20:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:20:54,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 10:20:54,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:20:55,291 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:20:55,291 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:20:55,581 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:20:55,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:20:55,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225074995] [2023-12-25 10:20:55,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225074995] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:20:55,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:20:55,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-12-25 10:20:55,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458153913] [2023-12-25 10:20:55,582 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:20:55,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-25 10:20:55,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:20:55,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-25 10:20:55,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2023-12-25 10:20:55,583 INFO L87 Difference]: Start difference. First operand 2033 states and 2750 transitions. Second operand has 24 states, 24 states have (on average 10.25) internal successors, (246), 23 states have internal predecessors, (246), 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 10:21:03,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:21:03,012 INFO L93 Difference]: Finished difference Result 13630 states and 18250 transitions. [2023-12-25 10:21:03,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2023-12-25 10:21:03,013 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 10.25) internal successors, (246), 23 states have internal predecessors, (246), 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 127 [2023-12-25 10:21:03,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:21:03,024 INFO L225 Difference]: With dead ends: 13630 [2023-12-25 10:21:03,024 INFO L226 Difference]: Without dead ends: 11720 [2023-12-25 10:21:03,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5876 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=3525, Invalid=14565, Unknown=0, NotChecked=0, Total=18090 [2023-12-25 10:21:03,030 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 4543 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4543 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-25 10:21:03,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4543 Valid, 1379 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-25 10:21:03,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11720 states. [2023-12-25 10:21:03,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11720 to 2117. [2023-12-25 10:21:03,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 2116 states have (on average 1.3449905482041589) internal successors, (2846), 2116 states have internal predecessors, (2846), 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 10:21:03,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2846 transitions. [2023-12-25 10:21:03,076 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2846 transitions. Word has length 127 [2023-12-25 10:21:03,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:21:03,077 INFO L495 AbstractCegarLoop]: Abstraction has 2117 states and 2846 transitions. [2023-12-25 10:21:03,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 10.25) internal successors, (246), 23 states have internal predecessors, (246), 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 10:21:03,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2846 transitions. [2023-12-25 10:21:03,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 10:21:03,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:21:03,078 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, 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 10:21:03,096 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 (35)] Forceful destruction successful, exit code 0 [2023-12-25 10:21:03,280 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 10:21:03,281 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:21:03,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:21:03,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1614102070, now seen corresponding path program 1 times [2023-12-25 10:21:03,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:21:03,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343945404] [2023-12-25 10:21:03,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:21:03,282 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 10:21:03,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:21:03,283 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 10:21:03,285 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 10:21:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:21:03,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:21:03,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:21:03,436 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:03,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:21:03,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:21:03,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343945404] [2023-12-25 10:21:03,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [343945404] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:21:03,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:21:03,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:21:03,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454007332] [2023-12-25 10:21:03,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:21:03,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:21:03,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:21:03,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:21:03,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:21:03,439 INFO L87 Difference]: Start difference. First operand 2117 states and 2846 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 10:21:03,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:21:03,453 INFO L93 Difference]: Finished difference Result 3075 states and 4150 transitions. [2023-12-25 10:21:03,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:21:03,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2023-12-25 10:21:03,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:21:03,472 INFO L225 Difference]: With dead ends: 3075 [2023-12-25 10:21:03,472 INFO L226 Difference]: Without dead ends: 1081 [2023-12-25 10:21:03,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 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 10:21:03,474 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 67 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 278 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 10:21:03,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 278 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:21:03,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2023-12-25 10:21:03,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1079. [2023-12-25 10:21:03,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1078 states have (on average 1.3153988868274582) internal successors, (1418), 1078 states have internal predecessors, (1418), 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 10:21:03,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1418 transitions. [2023-12-25 10:21:03,492 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1418 transitions. Word has length 128 [2023-12-25 10:21:03,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:21:03,492 INFO L495 AbstractCegarLoop]: Abstraction has 1079 states and 1418 transitions. [2023-12-25 10:21:03,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 10:21:03,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1418 transitions. [2023-12-25 10:21:03,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 10:21:03,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:21:03,493 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, 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 10:21:03,516 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 10:21:03,696 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 10:21:03,696 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:21:03,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:21:03,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1369744941, now seen corresponding path program 1 times [2023-12-25 10:21:03,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:21:03,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090925984] [2023-12-25 10:21:03,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:21:03,697 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 10:21:03,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:21:03,698 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 10:21:03,702 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 10:21:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:21:03,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 10:21:03,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:21:04,294 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 10:21:04,294 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:21:04,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:21:04,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090925984] [2023-12-25 10:21:04,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090925984] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:21:04,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:21:04,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 10:21:04,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962384173] [2023-12-25 10:21:04,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:21:04,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 10:21:04,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:21:04,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 10:21:04,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:21:04,295 INFO L87 Difference]: Start difference. First operand 1079 states and 1418 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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 10:21:04,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:21:04,375 INFO L93 Difference]: Finished difference Result 2679 states and 3579 transitions. [2023-12-25 10:21:04,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 10:21:04,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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 128 [2023-12-25 10:21:04,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:21:04,376 INFO L225 Difference]: With dead ends: 2679 [2023-12-25 10:21:04,377 INFO L226 Difference]: Without dead ends: 1723 [2023-12-25 10:21:04,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:21:04,378 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 291 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:21:04,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 627 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:21:04,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-12-25 10:21:04,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1079. [2023-12-25 10:21:04,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1078 states have (on average 1.2931354359925789) internal successors, (1394), 1078 states have internal predecessors, (1394), 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 10:21:04,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1394 transitions. [2023-12-25 10:21:04,417 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1394 transitions. Word has length 128 [2023-12-25 10:21:04,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:21:04,417 INFO L495 AbstractCegarLoop]: Abstraction has 1079 states and 1394 transitions. [2023-12-25 10:21:04,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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 10:21:04,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1394 transitions. [2023-12-25 10:21:04,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 10:21:04,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:21:04,418 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, 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 10:21:04,423 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 (37)] Forceful destruction successful, exit code 0 [2023-12-25 10:21:04,620 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 10:21:04,621 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:21:04,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:21:04,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1905013436, now seen corresponding path program 1 times [2023-12-25 10:21:04,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:21:04,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705635809] [2023-12-25 10:21:04,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:21:04,622 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 10:21:04,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:21:04,622 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 10:21:04,624 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 10:21:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:21:04,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:21:04,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:21:04,786 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:04,786 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:21:04,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:21:04,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705635809] [2023-12-25 10:21:04,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705635809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:21:04,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:21:04,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:21:04,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091207033] [2023-12-25 10:21:04,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:21:04,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:21:04,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:21:04,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:21:04,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:21:04,788 INFO L87 Difference]: Start difference. First operand 1079 states and 1394 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 10:21:04,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:21:04,801 INFO L93 Difference]: Finished difference Result 1560 states and 2020 transitions. [2023-12-25 10:21:04,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:21:04,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2023-12-25 10:21:04,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:21:04,802 INFO L225 Difference]: With dead ends: 1560 [2023-12-25 10:21:04,802 INFO L226 Difference]: Without dead ends: 604 [2023-12-25 10:21:04,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 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 10:21:04,803 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 62 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 259 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 10:21:04,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 259 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:21:04,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2023-12-25 10:21:04,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 602. [2023-12-25 10:21:04,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 601 states have (on average 1.2512479201331115) internal successors, (752), 601 states have internal predecessors, (752), 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 10:21:04,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 752 transitions. [2023-12-25 10:21:04,821 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 752 transitions. Word has length 128 [2023-12-25 10:21:04,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:21:04,821 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 752 transitions. [2023-12-25 10:21:04,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 10:21:04,821 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 752 transitions. [2023-12-25 10:21:04,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 10:21:04,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:21:04,822 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, 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 10:21:04,825 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 10:21:05,024 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 10:21:05,025 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:21:05,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:21:05,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1185874279, now seen corresponding path program 1 times [2023-12-25 10:21:05,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:21:05,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990356975] [2023-12-25 10:21:05,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:21:05,028 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 10:21:05,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:21:05,029 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 10:21:05,063 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 10:21:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:21:05,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 10:21:05,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:21:05,702 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 10:21:05,702 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:21:05,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:21:05,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990356975] [2023-12-25 10:21:05,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990356975] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:21:05,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:21:05,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 10:21:05,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190446084] [2023-12-25 10:21:05,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:21:05,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 10:21:05,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:21:05,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 10:21:05,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:21:05,704 INFO L87 Difference]: Start difference. First operand 602 states and 752 transitions. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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 10:21:05,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:21:05,779 INFO L93 Difference]: Finished difference Result 1248 states and 1613 transitions. [2023-12-25 10:21:05,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 10:21:05,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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 128 [2023-12-25 10:21:05,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:21:05,780 INFO L225 Difference]: With dead ends: 1248 [2023-12-25 10:21:05,780 INFO L226 Difference]: Without dead ends: 1087 [2023-12-25 10:21:05,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:21:05,781 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 275 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:21:05,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 666 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:21:05,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2023-12-25 10:21:05,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 761. [2023-12-25 10:21:05,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 760 states have (on average 1.2552631578947369) internal successors, (954), 760 states have internal predecessors, (954), 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 10:21:05,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 954 transitions. [2023-12-25 10:21:05,787 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 954 transitions. Word has length 128 [2023-12-25 10:21:05,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:21:05,787 INFO L495 AbstractCegarLoop]: Abstraction has 761 states and 954 transitions. [2023-12-25 10:21:05,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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 10:21:05,787 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 954 transitions. [2023-12-25 10:21:05,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 10:21:05,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:21:05,788 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, 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 10:21:05,790 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 10:21:05,990 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 10:21:05,991 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:21:05,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:21:05,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1814128019, now seen corresponding path program 1 times [2023-12-25 10:21:05,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:21:05,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762544932] [2023-12-25 10:21:05,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:21:05,992 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 10:21:05,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:21:05,993 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 10:21:05,994 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 10:21:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:21:06,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 10:21:06,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:21:06,607 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 10:21:06,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:21:06,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:21:06,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762544932] [2023-12-25 10:21:06,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1762544932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:21:06,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:21:06,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 10:21:06,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619144842] [2023-12-25 10:21:06,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:21:06,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 10:21:06,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:21:06,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 10:21:06,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:21:06,609 INFO L87 Difference]: Start difference. First operand 761 states and 954 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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 10:21:06,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:21:06,679 INFO L93 Difference]: Finished difference Result 1407 states and 1815 transitions. [2023-12-25 10:21:06,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 10:21:06,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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 128 [2023-12-25 10:21:06,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:21:06,680 INFO L225 Difference]: With dead ends: 1407 [2023-12-25 10:21:06,680 INFO L226 Difference]: Without dead ends: 1246 [2023-12-25 10:21:06,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:21:06,682 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 255 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:21:06,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 757 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:21:06,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2023-12-25 10:21:06,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 920. [2023-12-25 10:21:06,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 919 states have (on average 1.2578890097932536) internal successors, (1156), 919 states have internal predecessors, (1156), 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 10:21:06,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1156 transitions. [2023-12-25 10:21:06,700 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1156 transitions. Word has length 128 [2023-12-25 10:21:06,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:21:06,700 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1156 transitions. [2023-12-25 10:21:06,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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 10:21:06,700 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1156 transitions. [2023-12-25 10:21:06,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 10:21:06,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:21:06,701 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, 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 10:21:06,704 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 (40)] Ended with exit code 0 [2023-12-25 10:21:06,903 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 10:21:06,904 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:21:06,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:21:06,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1271117095, now seen corresponding path program 1 times [2023-12-25 10:21:06,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:21:06,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24023996] [2023-12-25 10:21:06,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:21:06,905 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 10:21:06,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:21:06,906 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 10:21:06,943 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 10:21:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:21:07,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 10:21:07,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:21:07,537 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 10:21:07,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:21:07,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:21:07,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24023996] [2023-12-25 10:21:07,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [24023996] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:21:07,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:21:07,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 10:21:07,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288238630] [2023-12-25 10:21:07,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:21:07,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 10:21:07,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:21:07,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 10:21:07,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:21:07,538 INFO L87 Difference]: Start difference. First operand 920 states and 1156 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 10:21:07,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:21:07,610 INFO L93 Difference]: Finished difference Result 1566 states and 2017 transitions. [2023-12-25 10:21:07,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 10:21:07,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 128 [2023-12-25 10:21:07,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:21:07,612 INFO L225 Difference]: With dead ends: 1566 [2023-12-25 10:21:07,612 INFO L226 Difference]: Without dead ends: 1405 [2023-12-25 10:21:07,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:21:07,613 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 265 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:21:07,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 647 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:21:07,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2023-12-25 10:21:07,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1079. [2023-12-25 10:21:07,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1078 states have (on average 1.2597402597402598) internal successors, (1358), 1078 states have internal predecessors, (1358), 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 10:21:07,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1358 transitions. [2023-12-25 10:21:07,635 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1358 transitions. Word has length 128 [2023-12-25 10:21:07,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:21:07,636 INFO L495 AbstractCegarLoop]: Abstraction has 1079 states and 1358 transitions. [2023-12-25 10:21:07,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 10:21:07,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1358 transitions. [2023-12-25 10:21:07,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 10:21:07,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:21:07,637 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, 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 10:21:07,642 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 10:21:07,837 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 10:21:07,838 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:21:07,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:21:07,838 INFO L85 PathProgramCache]: Analyzing trace with hash -441755404, now seen corresponding path program 1 times [2023-12-25 10:21:07,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:21:07,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713109275] [2023-12-25 10:21:07,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:21:07,839 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 10:21:07,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:21:07,840 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 10:21:07,842 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 10:21:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:21:07,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 10:21:07,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:21:08,598 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:08,598 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:21:08,812 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:08,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:21:08,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713109275] [2023-12-25 10:21:08,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713109275] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:21:08,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:21:08,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2023-12-25 10:21:08,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888927394] [2023-12-25 10:21:08,813 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:21:08,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-25 10:21:08,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:21:08,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-25 10:21:08,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-12-25 10:21:08,814 INFO L87 Difference]: Start difference. First operand 1079 states and 1358 transitions. Second operand has 21 states, 21 states have (on average 11.333333333333334) internal successors, (238), 21 states have internal predecessors, (238), 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 10:21:13,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:21:13,860 INFO L93 Difference]: Finished difference Result 12434 states and 15711 transitions. [2023-12-25 10:21:13,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-12-25 10:21:13,861 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.333333333333334) internal successors, (238), 21 states have internal predecessors, (238), 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 129 [2023-12-25 10:21:13,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:21:13,869 INFO L225 Difference]: With dead ends: 12434 [2023-12-25 10:21:13,869 INFO L226 Difference]: Without dead ends: 11478 [2023-12-25 10:21:13,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1432 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1410, Invalid=4596, Unknown=0, NotChecked=0, Total=6006 [2023-12-25 10:21:13,874 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 3573 mSDsluCounter, 3166 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3573 SdHoareTripleChecker+Valid, 3413 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:21:13,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3573 Valid, 3413 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 10:21:13,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11478 states. [2023-12-25 10:21:13,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11478 to 3843. [2023-12-25 10:21:13,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3843 states, 3842 states have (on average 1.261061946902655) internal successors, (4845), 3842 states have internal predecessors, (4845), 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 10:21:13,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3843 states to 3843 states and 4845 transitions. [2023-12-25 10:21:13,932 INFO L78 Accepts]: Start accepts. Automaton has 3843 states and 4845 transitions. Word has length 129 [2023-12-25 10:21:13,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:21:13,932 INFO L495 AbstractCegarLoop]: Abstraction has 3843 states and 4845 transitions. [2023-12-25 10:21:13,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.333333333333334) internal successors, (238), 21 states have internal predecessors, (238), 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 10:21:13,932 INFO L276 IsEmpty]: Start isEmpty. Operand 3843 states and 4845 transitions. [2023-12-25 10:21:13,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 10:21:13,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:21:13,934 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, 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 10:21:13,937 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 (42)] Forceful destruction successful, exit code 0 [2023-12-25 10:21:14,137 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 10:21:14,137 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:21:14,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:21:14,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1930964678, now seen corresponding path program 1 times [2023-12-25 10:21:14,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:21:14,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821617521] [2023-12-25 10:21:14,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:21:14,139 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 10:21:14,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:21:14,139 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 10:21:14,140 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 10:21:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:21:14,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 10:21:14,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:21:15,134 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:15,134 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:21:15,364 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:15,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:21:15,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821617521] [2023-12-25 10:21:15,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821617521] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:21:15,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:21:15,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2023-12-25 10:21:15,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2661159] [2023-12-25 10:21:15,365 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:21:15,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-25 10:21:15,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:21:15,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-25 10:21:15,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2023-12-25 10:21:15,367 INFO L87 Difference]: Start difference. First operand 3843 states and 4845 transitions. Second operand has 22 states, 22 states have (on average 10.590909090909092) internal successors, (233), 22 states have internal predecessors, (233), 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 10:21:19,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:21:19,127 INFO L93 Difference]: Finished difference Result 33992 states and 42818 transitions. [2023-12-25 10:21:19,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-25 10:21:19,128 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.590909090909092) internal successors, (233), 22 states have internal predecessors, (233), 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 129 [2023-12-25 10:21:19,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:21:19,156 INFO L225 Difference]: With dead ends: 33992 [2023-12-25 10:21:19,156 INFO L226 Difference]: Without dead ends: 32802 [2023-12-25 10:21:19,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=937, Invalid=3095, Unknown=0, NotChecked=0, Total=4032 [2023-12-25 10:21:19,163 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 2144 mSDsluCounter, 4223 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2144 SdHoareTripleChecker+Valid, 4748 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:21:19,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2144 Valid, 4748 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 10:21:19,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32802 states. [2023-12-25 10:21:19,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32802 to 9267. [2023-12-25 10:21:19,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9267 states, 9266 states have (on average 1.2617094755018348) internal successors, (11691), 9266 states have internal predecessors, (11691), 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 10:21:19,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9267 states to 9267 states and 11691 transitions. [2023-12-25 10:21:19,336 INFO L78 Accepts]: Start accepts. Automaton has 9267 states and 11691 transitions. Word has length 129 [2023-12-25 10:21:19,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:21:19,336 INFO L495 AbstractCegarLoop]: Abstraction has 9267 states and 11691 transitions. [2023-12-25 10:21:19,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.590909090909092) internal successors, (233), 22 states have internal predecessors, (233), 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 10:21:19,336 INFO L276 IsEmpty]: Start isEmpty. Operand 9267 states and 11691 transitions. [2023-12-25 10:21:19,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 10:21:19,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:21:19,339 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, 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 10:21:19,342 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 (43)] Ended with exit code 0 [2023-12-25 10:21:19,542 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 10:21:19,542 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:21:19,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:21:19,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1210684596, now seen corresponding path program 1 times [2023-12-25 10:21:19,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:21:19,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983582562] [2023-12-25 10:21:19,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:21:19,543 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 10:21:19,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:21:19,544 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 10:21:19,546 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 10:21:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:21:19,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 10:21:19,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:21:20,535 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:20,536 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:21:20,734 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:20,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:21:20,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983582562] [2023-12-25 10:21:20,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983582562] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:21:20,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:21:20,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2023-12-25 10:21:20,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562135708] [2023-12-25 10:21:20,736 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:21:20,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-25 10:21:20,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:21:20,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-25 10:21:20,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2023-12-25 10:21:20,739 INFO L87 Difference]: Start difference. First operand 9267 states and 11691 transitions. Second operand has 24 states, 24 states have (on average 9.666666666666666) internal successors, (232), 24 states have internal predecessors, (232), 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 10:21:23,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:21:23,282 INFO L93 Difference]: Finished difference Result 60247 states and 76352 transitions. [2023-12-25 10:21:23,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-25 10:21:23,283 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.666666666666666) internal successors, (232), 24 states have internal predecessors, (232), 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 129 [2023-12-25 10:21:23,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:21:23,338 INFO L225 Difference]: With dead ends: 60247 [2023-12-25 10:21:23,338 INFO L226 Difference]: Without dead ends: 57365 [2023-12-25 10:21:23,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=513, Invalid=2139, Unknown=0, NotChecked=0, Total=2652 [2023-12-25 10:21:23,358 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 1978 mSDsluCounter, 3596 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1978 SdHoareTripleChecker+Valid, 3874 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 10:21:23,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1978 Valid, 3874 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 10:21:23,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57365 states. [2023-12-25 10:21:23,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57365 to 21249. [2023-12-25 10:21:23,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21249 states, 21248 states have (on average 1.2602597891566265) internal successors, (26778), 21248 states have internal predecessors, (26778), 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 10:21:23,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21249 states to 21249 states and 26778 transitions. [2023-12-25 10:21:23,917 INFO L78 Accepts]: Start accepts. Automaton has 21249 states and 26778 transitions. Word has length 129 [2023-12-25 10:21:23,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:21:23,918 INFO L495 AbstractCegarLoop]: Abstraction has 21249 states and 26778 transitions. [2023-12-25 10:21:23,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.666666666666666) internal successors, (232), 24 states have internal predecessors, (232), 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 10:21:23,919 INFO L276 IsEmpty]: Start isEmpty. Operand 21249 states and 26778 transitions. [2023-12-25 10:21:23,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 10:21:23,947 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:21:23,947 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, 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 10:21:23,959 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 10:21:24,147 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 10:21:24,148 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:21:24,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:21:24,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1522509665, now seen corresponding path program 1 times [2023-12-25 10:21:24,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:21:24,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135379208] [2023-12-25 10:21:24,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:21:24,149 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 10:21:24,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:21:24,150 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 10:21:24,152 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 10:21:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:21:24,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 10:21:24,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:21:25,098 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:25,098 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:21:25,378 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:25,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:21:25,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135379208] [2023-12-25 10:21:25,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1135379208] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:21:25,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:21:25,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2023-12-25 10:21:25,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627126377] [2023-12-25 10:21:25,379 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:21:25,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-25 10:21:25,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:21:25,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-25 10:21:25,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-12-25 10:21:25,380 INFO L87 Difference]: Start difference. First operand 21249 states and 26778 transitions. Second operand has 21 states, 21 states have (on average 11.428571428571429) internal successors, (240), 21 states have internal predecessors, (240), 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 10:21:28,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:21:28,037 INFO L93 Difference]: Finished difference Result 94278 states and 118769 transitions. [2023-12-25 10:21:28,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-25 10:21:28,038 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.428571428571429) internal successors, (240), 21 states have internal predecessors, (240), 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 129 [2023-12-25 10:21:28,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:21:28,113 INFO L225 Difference]: With dead ends: 94278 [2023-12-25 10:21:28,113 INFO L226 Difference]: Without dead ends: 81730 [2023-12-25 10:21:28,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=701, Invalid=2379, Unknown=0, NotChecked=0, Total=3080 [2023-12-25 10:21:28,136 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 1755 mSDsluCounter, 3840 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 4205 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 10:21:28,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1755 Valid, 4205 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 10:21:28,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81730 states. [2023-12-25 10:21:28,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81730 to 49752. [2023-12-25 10:21:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49752 states, 49751 states have (on average 1.2633715905207936) internal successors, (62854), 49751 states have internal predecessors, (62854), 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 10:21:29,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49752 states to 49752 states and 62854 transitions. [2023-12-25 10:21:29,007 INFO L78 Accepts]: Start accepts. Automaton has 49752 states and 62854 transitions. Word has length 129 [2023-12-25 10:21:29,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:21:29,007 INFO L495 AbstractCegarLoop]: Abstraction has 49752 states and 62854 transitions. [2023-12-25 10:21:29,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.428571428571429) internal successors, (240), 21 states have internal predecessors, (240), 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 10:21:29,007 INFO L276 IsEmpty]: Start isEmpty. Operand 49752 states and 62854 transitions. [2023-12-25 10:21:29,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 10:21:29,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:21:29,016 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, 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 10:21:29,020 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 (45)] Forceful destruction successful, exit code 0 [2023-12-25 10:21:29,219 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 10:21:29,219 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:21:29,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:21:29,219 INFO L85 PathProgramCache]: Analyzing trace with hash -769353787, now seen corresponding path program 1 times [2023-12-25 10:21:29,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:21:29,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25409790] [2023-12-25 10:21:29,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:21:29,220 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 10:21:29,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:21:29,221 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 10:21:29,222 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 10:21:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:21:29,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 10:21:29,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:21:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:30,512 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:21:30,910 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:30,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:21:30,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25409790] [2023-12-25 10:21:30,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25409790] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:21:30,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:21:30,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2023-12-25 10:21:30,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004792504] [2023-12-25 10:21:30,911 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:21:30,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-25 10:21:30,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:21:30,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-25 10:21:30,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2023-12-25 10:21:30,912 INFO L87 Difference]: Start difference. First operand 49752 states and 62854 transitions. Second operand has 25 states, 25 states have (on average 9.68) internal successors, (242), 25 states have internal predecessors, (242), 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 10:21:36,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:21:36,883 INFO L93 Difference]: Finished difference Result 175197 states and 221328 transitions. [2023-12-25 10:21:36,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-12-25 10:21:36,883 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.68) internal successors, (242), 25 states have internal predecessors, (242), 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 129 [2023-12-25 10:21:36,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:21:37,059 INFO L225 Difference]: With dead ends: 175197 [2023-12-25 10:21:37,059 INFO L226 Difference]: Without dead ends: 169783 [2023-12-25 10:21:37,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1423 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1361, Invalid=5119, Unknown=0, NotChecked=0, Total=6480 [2023-12-25 10:21:37,107 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 2438 mSDsluCounter, 4988 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2438 SdHoareTripleChecker+Valid, 5508 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 10:21:37,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2438 Valid, 5508 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 10:21:37,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169783 states. [2023-12-25 10:21:38,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169783 to 49425. [2023-12-25 10:21:38,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49425 states, 49424 states have (on average 1.2646689867270962) internal successors, (62505), 49424 states have internal predecessors, (62505), 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 10:21:38,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49425 states to 49425 states and 62505 transitions. [2023-12-25 10:21:38,452 INFO L78 Accepts]: Start accepts. Automaton has 49425 states and 62505 transitions. Word has length 129 [2023-12-25 10:21:38,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:21:38,453 INFO L495 AbstractCegarLoop]: Abstraction has 49425 states and 62505 transitions. [2023-12-25 10:21:38,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.68) internal successors, (242), 25 states have internal predecessors, (242), 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 10:21:38,453 INFO L276 IsEmpty]: Start isEmpty. Operand 49425 states and 62505 transitions. [2023-12-25 10:21:38,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 10:21:38,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:21:38,462 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, 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 10:21:38,470 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 10:21:38,665 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 10:21:38,666 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:21:38,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:21:38,667 INFO L85 PathProgramCache]: Analyzing trace with hash 883086213, now seen corresponding path program 1 times [2023-12-25 10:21:38,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:21:38,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708867451] [2023-12-25 10:21:38,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:21:38,667 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 10:21:38,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:21:38,668 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 10:21:38,669 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 10:21:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:21:38,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 10:21:38,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:21:39,546 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:39,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:21:39,719 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:39,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:21:39,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708867451] [2023-12-25 10:21:39,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1708867451] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:21:39,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:21:39,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2023-12-25 10:21:39,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768917887] [2023-12-25 10:21:39,719 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:21:39,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-25 10:21:39,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:21:39,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-25 10:21:39,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2023-12-25 10:21:39,728 INFO L87 Difference]: Start difference. First operand 49425 states and 62505 transitions. Second operand has 19 states, 19 states have (on average 12.210526315789474) internal successors, (232), 19 states have internal predecessors, (232), 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 10:21:41,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:21:41,597 INFO L93 Difference]: Finished difference Result 144489 states and 183241 transitions. [2023-12-25 10:21:41,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-25 10:21:41,598 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 12.210526315789474) internal successors, (232), 19 states have internal predecessors, (232), 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 129 [2023-12-25 10:21:41,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:21:41,718 INFO L225 Difference]: With dead ends: 144489 [2023-12-25 10:21:41,719 INFO L226 Difference]: Without dead ends: 126427 [2023-12-25 10:21:41,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=430, Invalid=1462, Unknown=0, NotChecked=0, Total=1892 [2023-12-25 10:21:41,739 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 2175 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2175 SdHoareTripleChecker+Valid, 2736 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 10:21:41,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2175 Valid, 2736 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 10:21:41,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126427 states. [2023-12-25 10:21:42,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126427 to 76249. [2023-12-25 10:21:42,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76249 states, 76248 states have (on average 1.265043017521771) internal successors, (96457), 76248 states have internal predecessors, (96457), 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 10:21:42,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76249 states to 76249 states and 96457 transitions. [2023-12-25 10:21:42,803 INFO L78 Accepts]: Start accepts. Automaton has 76249 states and 96457 transitions. Word has length 129 [2023-12-25 10:21:42,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:21:42,803 INFO L495 AbstractCegarLoop]: Abstraction has 76249 states and 96457 transitions. [2023-12-25 10:21:42,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.210526315789474) internal successors, (232), 19 states have internal predecessors, (232), 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 10:21:42,803 INFO L276 IsEmpty]: Start isEmpty. Operand 76249 states and 96457 transitions. [2023-12-25 10:21:42,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 10:21:42,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:21:42,814 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, 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 10:21:42,820 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 (47)] Forceful destruction successful, exit code 0 [2023-12-25 10:21:43,017 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 10:21:43,017 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:21:43,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:21:43,017 INFO L85 PathProgramCache]: Analyzing trace with hash -728076900, now seen corresponding path program 1 times [2023-12-25 10:21:43,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:21:43,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606736187] [2023-12-25 10:21:43,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:21:43,018 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 10:21:43,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:21:43,019 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 10:21:43,176 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 10:21:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:21:43,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 10:21:43,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:21:44,013 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:44,013 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:21:44,313 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:44,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:21:44,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606736187] [2023-12-25 10:21:44,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [606736187] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:21:44,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:21:44,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2023-12-25 10:21:44,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049192681] [2023-12-25 10:21:44,313 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:21:44,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-25 10:21:44,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:21:44,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-25 10:21:44,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-12-25 10:21:44,314 INFO L87 Difference]: Start difference. First operand 76249 states and 96457 transitions. Second operand has 21 states, 21 states have (on average 11.285714285714286) internal successors, (237), 21 states have internal predecessors, (237), 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 10:21:48,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:21:48,662 INFO L93 Difference]: Finished difference Result 319477 states and 402872 transitions. [2023-12-25 10:21:48,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-25 10:21:48,663 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.285714285714286) internal successors, (237), 21 states have internal predecessors, (237), 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 129 [2023-12-25 10:21:48,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:21:49,103 INFO L225 Difference]: With dead ends: 319477 [2023-12-25 10:21:49,103 INFO L226 Difference]: Without dead ends: 296729 [2023-12-25 10:21:49,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 876 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=980, Invalid=3310, Unknown=0, NotChecked=0, Total=4290 [2023-12-25 10:21:49,167 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 2268 mSDsluCounter, 5608 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 6079 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:21:49,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2268 Valid, 6079 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 10:21:49,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296729 states. [2023-12-25 10:21:51,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296729 to 115186. [2023-12-25 10:21:51,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115186 states, 115185 states have (on average 1.264826149238182) internal successors, (145689), 115185 states have internal predecessors, (145689), 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 10:21:51,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115186 states to 115186 states and 145689 transitions. [2023-12-25 10:21:51,422 INFO L78 Accepts]: Start accepts. Automaton has 115186 states and 145689 transitions. Word has length 129 [2023-12-25 10:21:51,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:21:51,422 INFO L495 AbstractCegarLoop]: Abstraction has 115186 states and 145689 transitions. [2023-12-25 10:21:51,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.285714285714286) internal successors, (237), 21 states have internal predecessors, (237), 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 10:21:51,422 INFO L276 IsEmpty]: Start isEmpty. Operand 115186 states and 145689 transitions. [2023-12-25 10:21:51,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 10:21:51,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:21:51,435 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, 1, 1, 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 10:21:51,438 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 (48)] Forceful destruction successful, exit code 0 [2023-12-25 10:21:51,637 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 10:21:51,638 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:21:51,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:21:51,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1922010786, now seen corresponding path program 1 times [2023-12-25 10:21:51,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:21:51,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188475820] [2023-12-25 10:21:51,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:21:51,639 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 10:21:51,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:21:51,640 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 10:21:51,641 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 10:21:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:21:51,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:21:51,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:21:51,886 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 10:21:51,887 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:21:52,238 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 10:21:52,239 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:21:52,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188475820] [2023-12-25 10:21:52,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188475820] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:21:52,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:21:52,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-25 10:21:52,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531016967] [2023-12-25 10:21:52,239 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:21:52,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:21:52,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:21:52,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:21:52,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:21:52,240 INFO L87 Difference]: Start difference. First operand 115186 states and 145689 transitions. Second operand has 8 states, 8 states have (on average 31.375) internal successors, (251), 8 states have internal predecessors, (251), 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 10:21:53,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:21:53,239 INFO L93 Difference]: Finished difference Result 374795 states and 472092 transitions. [2023-12-25 10:21:53,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 10:21:53,240 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 31.375) internal successors, (251), 8 states have internal predecessors, (251), 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 130 [2023-12-25 10:21:53,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:21:53,742 INFO L225 Difference]: With dead ends: 374795 [2023-12-25 10:21:53,742 INFO L226 Difference]: Without dead ends: 261957 [2023-12-25 10:21:53,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:21:53,801 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 221 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:21:53,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 738 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:21:53,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261957 states. [2023-12-25 10:21:56,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261957 to 259589. [2023-12-25 10:21:56,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259589 states, 259588 states have (on average 1.2130915142456509) internal successors, (314904), 259588 states have internal predecessors, (314904), 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 10:21:57,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259589 states to 259589 states and 314904 transitions. [2023-12-25 10:21:57,001 INFO L78 Accepts]: Start accepts. Automaton has 259589 states and 314904 transitions. Word has length 130 [2023-12-25 10:21:57,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:21:57,001 INFO L495 AbstractCegarLoop]: Abstraction has 259589 states and 314904 transitions. [2023-12-25 10:21:57,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 31.375) internal successors, (251), 8 states have internal predecessors, (251), 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 10:21:57,001 INFO L276 IsEmpty]: Start isEmpty. Operand 259589 states and 314904 transitions. [2023-12-25 10:21:57,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 10:21:57,013 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:21:57,013 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, 1, 1, 1, 1, 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 10:21:57,020 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 10:21:57,216 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 10:21:57,216 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:21:57,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:21:57,217 INFO L85 PathProgramCache]: Analyzing trace with hash -98153781, now seen corresponding path program 1 times [2023-12-25 10:21:57,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:21:57,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296332438] [2023-12-25 10:21:57,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:21:57,217 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 10:21:57,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:21:57,218 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 10:21:57,219 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 10:21:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:21:57,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 10:21:57,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:21:59,225 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:59,225 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:22:00,204 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:22:00,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:22:00,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296332438] [2023-12-25 10:22:00,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296332438] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:22:00,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:22:00,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 39 [2023-12-25 10:22:00,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153633756] [2023-12-25 10:22:00,205 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:22:00,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-25 10:22:00,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:22:00,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-25 10:22:00,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1336, Unknown=0, NotChecked=0, Total=1482 [2023-12-25 10:22:00,206 INFO L87 Difference]: Start difference. First operand 259589 states and 314904 transitions. Second operand has 39 states, 39 states have (on average 6.256410256410256) internal successors, (244), 39 states have internal predecessors, (244), 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 10:22:56,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:22:56,033 INFO L93 Difference]: Finished difference Result 1114836 states and 1348967 transitions. [2023-12-25 10:22:56,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 425 states. [2023-12-25 10:22:56,034 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 6.256410256410256) internal successors, (244), 39 states have internal predecessors, (244), 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 130 [2023-12-25 10:22:56,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:22:57,904 INFO L225 Difference]: With dead ends: 1114836 [2023-12-25 10:22:57,904 INFO L226 Difference]: Without dead ends: 1091281 [2023-12-25 10:22:58,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 453 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87721 ImplicationChecksByTransitivity, 42.0s TimeCoverageRelationStatistics Valid=22793, Invalid=183777, Unknown=0, NotChecked=0, Total=206570 [2023-12-25 10:22:58,059 INFO L413 NwaCegarLoop]: 1077 mSDtfsCounter, 6416 mSDsluCounter, 22715 mSDsCounter, 0 mSdLazyCounter, 9094 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6416 SdHoareTripleChecker+Valid, 23792 SdHoareTripleChecker+Invalid, 9138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 9094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:22:58,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6416 Valid, 23792 Invalid, 9138 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 9094 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2023-12-25 10:22:58,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091281 states. [2023-12-25 10:23:06,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091281 to 404608. [2023-12-25 10:23:06,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404608 states, 404607 states have (on average 1.213229133455427) internal successors, (490881), 404607 states have internal predecessors, (490881), 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 10:23:08,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404608 states to 404608 states and 490881 transitions. [2023-12-25 10:23:08,644 INFO L78 Accepts]: Start accepts. Automaton has 404608 states and 490881 transitions. Word has length 130 [2023-12-25 10:23:08,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:23:08,644 INFO L495 AbstractCegarLoop]: Abstraction has 404608 states and 490881 transitions. [2023-12-25 10:23:08,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 6.256410256410256) internal successors, (244), 39 states have internal predecessors, (244), 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 10:23:08,644 INFO L276 IsEmpty]: Start isEmpty. Operand 404608 states and 490881 transitions. [2023-12-25 10:23:08,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 10:23:08,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:23:08,659 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, 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 10:23:08,671 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 10:23:08,862 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 10:23:08,863 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:23:08,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:23:08,864 INFO L85 PathProgramCache]: Analyzing trace with hash -2092564545, now seen corresponding path program 1 times [2023-12-25 10:23:08,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:23:08,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456252020] [2023-12-25 10:23:08,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:23:08,864 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 10:23:08,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:23:08,866 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 10:23:08,868 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 10:23:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:23:09,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:23:09,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:23:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 10:23:09,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:23:09,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:23:09,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456252020] [2023-12-25 10:23:09,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456252020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:23:09,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:23:09,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:23:09,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094025478] [2023-12-25 10:23:09,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:23:09,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:23:09,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:23:09,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:23:09,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:23:09,014 INFO L87 Difference]: Start difference. First operand 404608 states and 490881 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 10:23:11,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:23:11,396 INFO L93 Difference]: Finished difference Result 700674 states and 851128 transitions. [2023-12-25 10:23:11,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:23:11,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 130 [2023-12-25 10:23:11,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:23:12,178 INFO L225 Difference]: With dead ends: 700674 [2023-12-25 10:23:12,178 INFO L226 Difference]: Without dead ends: 300278 [2023-12-25 10:23:12,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 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 10:23:12,388 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 93 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:23:12,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 168 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:23:12,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300278 states. [2023-12-25 10:23:15,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300278 to 293361. [2023-12-25 10:23:15,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293361 states, 293360 states have (on average 1.2081742568857377) internal successors, (354430), 293360 states have internal predecessors, (354430), 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 10:23:16,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293361 states to 293361 states and 354430 transitions. [2023-12-25 10:23:16,282 INFO L78 Accepts]: Start accepts. Automaton has 293361 states and 354430 transitions. Word has length 130 [2023-12-25 10:23:16,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:23:16,282 INFO L495 AbstractCegarLoop]: Abstraction has 293361 states and 354430 transitions. [2023-12-25 10:23:16,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 10:23:16,282 INFO L276 IsEmpty]: Start isEmpty. Operand 293361 states and 354430 transitions. [2023-12-25 10:23:16,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 10:23:16,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:23:16,290 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:23:16,297 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 (51)] Ended with exit code 0 [2023-12-25 10:23:16,496 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 10:23:16,497 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:23:16,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:23:16,499 INFO L85 PathProgramCache]: Analyzing trace with hash -620803482, now seen corresponding path program 1 times [2023-12-25 10:23:16,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:23:16,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210339323] [2023-12-25 10:23:16,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:23:16,499 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 10:23:16,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:23:16,505 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 10:23:16,505 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 10:23:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:23:16,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:23:16,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:23:16,669 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:23:16,669 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:23:16,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:23:16,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210339323] [2023-12-25 10:23:16,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210339323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:23:16,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:23:16,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:23:16,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825647340] [2023-12-25 10:23:16,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:23:16,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:23:16,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:23:16,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:23:16,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:23:16,671 INFO L87 Difference]: Start difference. First operand 293361 states and 354430 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 10:23:18,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:23:18,123 INFO L93 Difference]: Finished difference Result 415317 states and 501379 transitions. [2023-12-25 10:23:18,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:23:18,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 130 [2023-12-25 10:23:18,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:23:18,328 INFO L225 Difference]: With dead ends: 415317 [2023-12-25 10:23:18,328 INFO L226 Difference]: Without dead ends: 141969 [2023-12-25 10:23:18,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 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 10:23:18,427 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 46 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 247 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 10:23:18,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 247 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:23:18,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141969 states. [2023-12-25 10:23:19,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141969 to 141967. [2023-12-25 10:23:19,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141967 states, 141966 states have (on average 1.182747981911162) internal successors, (167910), 141966 states have internal predecessors, (167910), 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 10:23:20,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141967 states to 141967 states and 167910 transitions. [2023-12-25 10:23:20,018 INFO L78 Accepts]: Start accepts. Automaton has 141967 states and 167910 transitions. Word has length 130 [2023-12-25 10:23:20,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:23:20,019 INFO L495 AbstractCegarLoop]: Abstraction has 141967 states and 167910 transitions. [2023-12-25 10:23:20,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 10:23:20,019 INFO L276 IsEmpty]: Start isEmpty. Operand 141967 states and 167910 transitions. [2023-12-25 10:23:20,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 10:23:20,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:23:20,026 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, 1, 1, 1, 1, 1, 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 10:23:20,031 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 (52)] Forceful destruction successful, exit code 0 [2023-12-25 10:23:20,229 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 10:23:20,229 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:23:20,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:23:20,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1869860890, now seen corresponding path program 1 times [2023-12-25 10:23:20,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:23:20,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509877334] [2023-12-25 10:23:20,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:23:20,230 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 10:23:20,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:23:20,231 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 10:23:20,233 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 10:23:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:23:20,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:23:20,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:23:20,407 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 10:23:20,407 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:23:20,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:23:20,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509877334] [2023-12-25 10:23:20,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509877334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:23:20,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:23:20,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:23:20,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063674198] [2023-12-25 10:23:20,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:23:20,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:23:20,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:23:20,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:23:20,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:23:20,410 INFO L87 Difference]: Start difference. First operand 141967 states and 167910 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 10:23:21,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:23:21,270 INFO L93 Difference]: Finished difference Result 222311 states and 262890 transitions. [2023-12-25 10:23:21,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:23:21,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 131 [2023-12-25 10:23:21,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:23:21,366 INFO L225 Difference]: With dead ends: 222311 [2023-12-25 10:23:21,366 INFO L226 Difference]: Without dead ends: 83053 [2023-12-25 10:23:21,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 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 10:23:21,425 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 92 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:23:21,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 137 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:23:21,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83053 states. [2023-12-25 10:23:22,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83053 to 83053. [2023-12-25 10:23:22,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83053 states, 83052 states have (on average 1.1660044309589173) internal successors, (96839), 83052 states have internal predecessors, (96839), 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 10:23:22,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83053 states to 83053 states and 96839 transitions. [2023-12-25 10:23:22,502 INFO L78 Accepts]: Start accepts. Automaton has 83053 states and 96839 transitions. Word has length 131 [2023-12-25 10:23:22,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:23:22,503 INFO L495 AbstractCegarLoop]: Abstraction has 83053 states and 96839 transitions. [2023-12-25 10:23:22,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 10:23:22,503 INFO L276 IsEmpty]: Start isEmpty. Operand 83053 states and 96839 transitions. [2023-12-25 10:23:22,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 10:23:22,507 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:23:22,507 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, 1, 1, 1, 1, 1, 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 10:23:22,512 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 10:23:22,710 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 10:23:22,711 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:23:22,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:23:22,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1121153955, now seen corresponding path program 1 times [2023-12-25 10:23:22,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:23:22,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101074866] [2023-12-25 10:23:22,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:23:22,714 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 10:23:22,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:23:22,715 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 10:23:22,716 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 10:23:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:23:22,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:23:22,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:23:22,878 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 10:23:22,879 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:23:22,879 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:23:22,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101074866] [2023-12-25 10:23:22,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101074866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:23:22,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:23:22,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:23:22,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040917328] [2023-12-25 10:23:22,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:23:22,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:23:22,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:23:22,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:23:22,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:23:22,880 INFO L87 Difference]: Start difference. First operand 83053 states and 96839 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 10:23:23,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:23:23,135 INFO L93 Difference]: Finished difference Result 128560 states and 149879 transitions. [2023-12-25 10:23:23,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:23:23,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 131 [2023-12-25 10:23:23,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:23:23,184 INFO L225 Difference]: With dead ends: 128560 [2023-12-25 10:23:23,184 INFO L226 Difference]: Without dead ends: 46335 [2023-12-25 10:23:23,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 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 10:23:23,224 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 94 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:23:23,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 126 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:23:23,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46335 states. [2023-12-25 10:23:23,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46335 to 46335. [2023-12-25 10:23:23,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46335 states, 46334 states have (on average 1.146371994647559) internal successors, (53116), 46334 states have internal predecessors, (53116), 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 10:23:23,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46335 states to 46335 states and 53116 transitions. [2023-12-25 10:23:23,762 INFO L78 Accepts]: Start accepts. Automaton has 46335 states and 53116 transitions. Word has length 131 [2023-12-25 10:23:23,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:23:23,762 INFO L495 AbstractCegarLoop]: Abstraction has 46335 states and 53116 transitions. [2023-12-25 10:23:23,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 10:23:23,763 INFO L276 IsEmpty]: Start isEmpty. Operand 46335 states and 53116 transitions. [2023-12-25 10:23:23,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 10:23:23,765 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:23:23,765 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, 1, 1, 1, 1, 1, 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 10:23:23,772 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 10:23:23,968 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 10:23:23,968 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:23:23,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:23:23,969 INFO L85 PathProgramCache]: Analyzing trace with hash -865977263, now seen corresponding path program 1 times [2023-12-25 10:23:23,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:23:23,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452214902] [2023-12-25 10:23:23,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:23:23,969 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 10:23:23,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:23:23,970 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 10:23:24,003 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 10:23:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:23:24,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:23:24,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:23:24,115 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 10:23:24,115 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:23:24,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:23:24,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1452214902] [2023-12-25 10:23:24,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1452214902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:23:24,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:23:24,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:23:24,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111953660] [2023-12-25 10:23:24,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:23:24,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:23:24,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:23:24,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:23:24,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:23:24,116 INFO L87 Difference]: Start difference. First operand 46335 states and 53116 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 10:23:24,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:23:24,248 INFO L93 Difference]: Finished difference Result 67512 states and 77395 transitions. [2023-12-25 10:23:24,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:23:24,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 131 [2023-12-25 10:23:24,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:23:24,269 INFO L225 Difference]: With dead ends: 67512 [2023-12-25 10:23:24,269 INFO L226 Difference]: Without dead ends: 21970 [2023-12-25 10:23:24,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 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 10:23:24,289 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 88 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:23:24,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 141 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:23:24,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21970 states. [2023-12-25 10:23:24,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21970 to 21970. [2023-12-25 10:23:24,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21970 states, 21969 states have (on average 1.1284082115708498) internal successors, (24790), 21969 states have internal predecessors, (24790), 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 10:23:24,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21970 states to 21970 states and 24790 transitions. [2023-12-25 10:23:24,630 INFO L78 Accepts]: Start accepts. Automaton has 21970 states and 24790 transitions. Word has length 131 [2023-12-25 10:23:24,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:23:24,630 INFO L495 AbstractCegarLoop]: Abstraction has 21970 states and 24790 transitions. [2023-12-25 10:23:24,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 10:23:24,630 INFO L276 IsEmpty]: Start isEmpty. Operand 21970 states and 24790 transitions. [2023-12-25 10:23:24,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 10:23:24,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:23:24,632 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, 1, 1, 1, 1, 1, 1, 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 10:23:24,640 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 10:23:24,835 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 10:23:24,835 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:23:24,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:23:24,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1097940641, now seen corresponding path program 1 times [2023-12-25 10:23:24,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:23:24,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475987496] [2023-12-25 10:23:24,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:23:24,836 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 10:23:24,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:23:24,837 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 10:23:24,844 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 10:23:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:23:24,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 10:23:24,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:23:26,102 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:23:26,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:23:26,422 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:23:26,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:23:26,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475987496] [2023-12-25 10:23:26,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475987496] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:23:26,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:23:26,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2023-12-25 10:23:26,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415137996] [2023-12-25 10:23:26,422 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:23:26,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-25 10:23:26,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:23:26,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-25 10:23:26,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2023-12-25 10:23:26,429 INFO L87 Difference]: Start difference. First operand 21970 states and 24790 transitions. Second operand has 25 states, 25 states have (on average 9.92) internal successors, (248), 25 states have internal predecessors, (248), 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 10:23:28,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:23:28,616 INFO L93 Difference]: Finished difference Result 38198 states and 42947 transitions. [2023-12-25 10:23:28,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-25 10:23:28,617 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.92) internal successors, (248), 25 states have internal predecessors, (248), 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 132 [2023-12-25 10:23:28,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:23:28,648 INFO L225 Difference]: With dead ends: 38198 [2023-12-25 10:23:28,648 INFO L226 Difference]: Without dead ends: 35032 [2023-12-25 10:23:28,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=428, Invalid=2022, Unknown=0, NotChecked=0, Total=2450 [2023-12-25 10:23:28,659 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 1279 mSDsluCounter, 3264 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 3527 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 10:23:28,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 3527 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 10:23:28,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35032 states. [2023-12-25 10:23:28,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35032 to 19122. [2023-12-25 10:23:28,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19122 states, 19121 states have (on average 1.126823910883322) internal successors, (21546), 19121 states have internal predecessors, (21546), 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 10:23:28,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19122 states to 19122 states and 21546 transitions. [2023-12-25 10:23:28,860 INFO L78 Accepts]: Start accepts. Automaton has 19122 states and 21546 transitions. Word has length 132 [2023-12-25 10:23:28,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:23:28,860 INFO L495 AbstractCegarLoop]: Abstraction has 19122 states and 21546 transitions. [2023-12-25 10:23:28,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.92) internal successors, (248), 25 states have internal predecessors, (248), 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 10:23:28,861 INFO L276 IsEmpty]: Start isEmpty. Operand 19122 states and 21546 transitions. [2023-12-25 10:23:28,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-25 10:23:28,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:23:28,865 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 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] [2023-12-25 10:23:28,868 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 (56)] Forceful destruction successful, exit code 0 [2023-12-25 10:23:29,068 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 10:23:29,068 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:23:29,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:23:29,068 INFO L85 PathProgramCache]: Analyzing trace with hash 850531140, now seen corresponding path program 1 times [2023-12-25 10:23:29,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:23:29,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487142172] [2023-12-25 10:23:29,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:23:29,069 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 10:23:29,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:23:29,070 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 10:23:29,084 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 10:23:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:23:29,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 10:23:29,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:23:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 19 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:23:32,168 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:23:34,001 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 19 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:23:34,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:23:34,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487142172] [2023-12-25 10:23:34,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487142172] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:23:34,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:23:34,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 41 [2023-12-25 10:23:34,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103314444] [2023-12-25 10:23:34,002 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:23:34,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-12-25 10:23:34,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:23:34,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-12-25 10:23:34,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1510, Unknown=0, NotChecked=0, Total=1640 [2023-12-25 10:23:34,003 INFO L87 Difference]: Start difference. First operand 19122 states and 21546 transitions. Second operand has 41 states, 41 states have (on average 8.975609756097562) internal successors, (368), 41 states have internal predecessors, (368), 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 10:25:32,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:25:32,259 INFO L93 Difference]: Finished difference Result 52947 states and 59656 transitions. [2023-12-25 10:25:32,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2023-12-25 10:25:32,260 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 8.975609756097562) internal successors, (368), 41 states have internal predecessors, (368), 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 189 [2023-12-25 10:25:32,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:25:32,307 INFO L225 Difference]: With dead ends: 52947 [2023-12-25 10:25:32,307 INFO L226 Difference]: Without dead ends: 49457 [2023-12-25 10:25:32,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8103 ImplicationChecksByTransitivity, 109.1s TimeCoverageRelationStatistics Valid=2749, Invalid=24973, Unknown=0, NotChecked=0, Total=27722 [2023-12-25 10:25:32,324 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 3715 mSDsluCounter, 19428 mSDsCounter, 0 mSdLazyCounter, 6344 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3715 SdHoareTripleChecker+Valid, 20306 SdHoareTripleChecker+Invalid, 6361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 6344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:25:32,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3715 Valid, 20306 Invalid, 6361 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 6344 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2023-12-25 10:25:32,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49457 states. [2023-12-25 10:25:32,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49457 to 24228. [2023-12-25 10:25:32,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24228 states, 24227 states have (on average 1.1244892062574814) internal successors, (27243), 24227 states have internal predecessors, (27243), 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 10:25:32,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24228 states to 24228 states and 27243 transitions. [2023-12-25 10:25:32,618 INFO L78 Accepts]: Start accepts. Automaton has 24228 states and 27243 transitions. Word has length 189 [2023-12-25 10:25:32,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:25:32,618 INFO L495 AbstractCegarLoop]: Abstraction has 24228 states and 27243 transitions. [2023-12-25 10:25:32,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 8.975609756097562) internal successors, (368), 41 states have internal predecessors, (368), 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 10:25:32,618 INFO L276 IsEmpty]: Start isEmpty. Operand 24228 states and 27243 transitions. [2023-12-25 10:25:32,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-25 10:25:32,646 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:25:32,646 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 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] [2023-12-25 10:25:32,650 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 (57)] Forceful destruction successful, exit code 0 [2023-12-25 10:25:32,850 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 10:25:32,850 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:25:32,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:25:32,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1822062457, now seen corresponding path program 1 times [2023-12-25 10:25:32,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:25:32,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741387426] [2023-12-25 10:25:32,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:25:32,851 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 10:25:32,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:25:32,853 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 10:25:32,854 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 10:25:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:25:33,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-25 10:25:33,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:25:34,692 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 28 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:25:34,693 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:25:35,684 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 28 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:25:35,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:25:35,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741387426] [2023-12-25 10:25:35,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741387426] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:25:35,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:25:35,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19] total 39 [2023-12-25 10:25:35,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127272311] [2023-12-25 10:25:35,684 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:25:35,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-25 10:25:35,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:25:35,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-25 10:25:35,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1377, Unknown=0, NotChecked=0, Total=1482 [2023-12-25 10:25:35,685 INFO L87 Difference]: Start difference. First operand 24228 states and 27243 transitions. Second operand has 39 states, 39 states have (on average 9.307692307692308) internal successors, (363), 39 states have internal predecessors, (363), 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 10:26:05,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:26:05,239 INFO L93 Difference]: Finished difference Result 47579 states and 53784 transitions. [2023-12-25 10:26:05,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2023-12-25 10:26:05,240 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 9.307692307692308) internal successors, (363), 39 states have internal predecessors, (363), 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 189 [2023-12-25 10:26:05,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:26:05,275 INFO L225 Difference]: With dead ends: 47579 [2023-12-25 10:26:05,275 INFO L226 Difference]: Without dead ends: 43054 [2023-12-25 10:26:05,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12165 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=5361, Invalid=33645, Unknown=0, NotChecked=0, Total=39006 [2023-12-25 10:26:05,288 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 2964 mSDsluCounter, 11771 mSDsCounter, 0 mSdLazyCounter, 4073 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2964 SdHoareTripleChecker+Valid, 12310 SdHoareTripleChecker+Invalid, 4125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 4073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:26:05,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2964 Valid, 12310 Invalid, 4125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 4073 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-25 10:26:05,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43054 states. [2023-12-25 10:26:05,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43054 to 26377. [2023-12-25 10:26:05,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26377 states, 26376 states have (on average 1.124014255383682) internal successors, (29647), 26376 states have internal predecessors, (29647), 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 10:26:05,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26377 states to 26377 states and 29647 transitions. [2023-12-25 10:26:05,562 INFO L78 Accepts]: Start accepts. Automaton has 26377 states and 29647 transitions. Word has length 189 [2023-12-25 10:26:05,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:26:05,563 INFO L495 AbstractCegarLoop]: Abstraction has 26377 states and 29647 transitions. [2023-12-25 10:26:05,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 9.307692307692308) internal successors, (363), 39 states have internal predecessors, (363), 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 10:26:05,563 INFO L276 IsEmpty]: Start isEmpty. Operand 26377 states and 29647 transitions. [2023-12-25 10:26:05,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-25 10:26:05,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:26:05,572 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 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] [2023-12-25 10:26:05,580 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 (58)] Forceful destruction successful, exit code 0 [2023-12-25 10:26:05,775 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 10:26:05,776 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:26:05,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:26:05,776 INFO L85 PathProgramCache]: Analyzing trace with hash 24621819, now seen corresponding path program 1 times [2023-12-25 10:26:05,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:26:05,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038719313] [2023-12-25 10:26:05,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:26:05,777 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 10:26:05,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:26:05,778 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 10:26:05,779 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 10:26:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:26:05,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-25 10:26:05,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:26:08,391 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-25 10:26:08,392 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:26:10,968 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:26:10,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:26:10,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038719313] [2023-12-25 10:26:10,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038719313] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:26:10,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:26:10,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 30] total 52 [2023-12-25 10:26:10,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926439376] [2023-12-25 10:26:10,969 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:26:10,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-12-25 10:26:10,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:26:10,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-12-25 10:26:10,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=2285, Unknown=0, NotChecked=0, Total=2652 [2023-12-25 10:26:10,970 INFO L87 Difference]: Start difference. First operand 26377 states and 29647 transitions. Second operand has 52 states, 52 states have (on average 6.269230769230769) internal successors, (326), 52 states have internal predecessors, (326), 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)