/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 [2023-12-16 18:26:22,245 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 18:26:22,302 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 18:26:22,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 18:26:22,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 18:26:22,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 18:26:22,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 18:26:22,330 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 18:26:22,330 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 18:26:22,333 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 18:26:22,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 18:26:22,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 18:26:22,334 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 18:26:22,335 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 18:26:22,335 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 18:26:22,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 18:26:22,336 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 18:26:22,336 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 18:26:22,336 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 18:26:22,336 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 18:26:22,336 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 18:26:22,337 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 18:26:22,337 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 18:26:22,337 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 18:26:22,337 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 18:26:22,337 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 18:26:22,337 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 18:26:22,338 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 18:26:22,338 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 18:26:22,338 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 18:26:22,339 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 18:26:22,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 18:26:22,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 18:26:22,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 18:26:22,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:26:22,339 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 18:26:22,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 18:26:22,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 18:26:22,339 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 18:26:22,340 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 18:26:22,340 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 18:26:22,340 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 18:26:22,340 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 18:26:22,340 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 18:26:22,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 18:26:22,340 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 18:26:22,341 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 18:26:22,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 18:26:22,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 18:26:22,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 18:26:22,552 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 18:26:22,552 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 18:26:22,553 INFO L431 ainManager$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 [2023-12-16 18:26:23,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 18:26:23,755 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 18:26:23,756 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-16 18:26:23,774 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5d154d40/6e2883de1993478085eb7629c79bd290/FLAG68fd7fdbe [2023-12-16 18:26:23,783 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5d154d40/6e2883de1993478085eb7629c79bd290 [2023-12-16 18:26:23,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 18:26:23,785 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 18:26:23,786 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 18:26:23,786 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 18:26:23,789 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 18:26:23,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:26:23" (1/1) ... [2023-12-16 18:26:23,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@650da5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:23, skipping insertion in model container [2023-12-16 18:26:23,791 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:26:23" (1/1) ... [2023-12-16 18:26:23,842 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 18:26:24,086 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] [2023-12-16 18:26:24,126 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] [2023-12-16 18:26:24,135 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] [2023-12-16 18:26:24,143 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] [2023-12-16 18:26:24,154 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] [2023-12-16 18:26:24,164 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] [2023-12-16 18:26:24,172 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] [2023-12-16 18:26:24,179 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42384,42397] [2023-12-16 18:26:24,187 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] [2023-12-16 18:26:24,194 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] [2023-12-16 18:26:24,202 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] [2023-12-16 18:26:24,229 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:26:24,248 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 18:26:24,329 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] [2023-12-16 18:26:24,353 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] [2023-12-16 18:26:24,366 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] [2023-12-16 18:26:24,371 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] [2023-12-16 18:26:24,377 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] [2023-12-16 18:26:24,382 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] [2023-12-16 18:26:24,387 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] [2023-12-16 18:26:24,391 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] [2023-12-16 18:26:24,396 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] [2023-12-16 18:26:24,401 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] [2023-12-16 18:26:24,406 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] [2023-12-16 18:26:24,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:26:24,432 INFO L206 MainTranslator]: Completed translation [2023-12-16 18:26:24,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:24 WrapperNode [2023-12-16 18:26:24,432 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 18:26:24,434 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 18:26:24,434 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 18:26:24,434 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 18:26:24,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:24" (1/1) ... [2023-12-16 18:26:24,456 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:24" (1/1) ... [2023-12-16 18:26:24,529 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2738 [2023-12-16 18:26:24,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 18:26:24,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 18:26:24,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 18:26:24,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 18:26:24,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:24" (1/1) ... [2023-12-16 18:26:24,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:24" (1/1) ... [2023-12-16 18:26:24,544 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:24" (1/1) ... [2023-12-16 18:26:24,582 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]. [2023-12-16 18:26:24,582 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:24" (1/1) ... [2023-12-16 18:26:24,582 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:24" (1/1) ... [2023-12-16 18:26:24,615 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:24" (1/1) ... [2023-12-16 18:26:24,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:24" (1/1) ... [2023-12-16 18:26:24,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:24" (1/1) ... [2023-12-16 18:26:24,648 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:24" (1/1) ... [2023-12-16 18:26:24,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 18:26:24,657 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 18:26:24,657 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 18:26:24,657 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 18:26:24,658 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:24" (1/1) ... [2023-12-16 18:26:24,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:26:24,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 18:26:24,686 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) [2023-12-16 18:26:24,707 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 [2023-12-16 18:26:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 18:26:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 18:26:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 18:26:24,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 18:26:24,861 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 18:26:24,864 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 18:26:26,167 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 18:26:26,193 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 18:26:26,193 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 18:26:26,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:26:26 BoogieIcfgContainer [2023-12-16 18:26:26,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 18:26:26,195 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 18:26:26,195 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 18:26:26,197 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 18:26:26,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:26:23" (1/3) ... [2023-12-16 18:26:26,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28981cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:26:26, skipping insertion in model container [2023-12-16 18:26:26,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:24" (2/3) ... [2023-12-16 18:26:26,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28981cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:26:26, skipping insertion in model container [2023-12-16 18:26:26,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:26:26" (3/3) ... [2023-12-16 18:26:26,198 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-16 18:26:26,210 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 18:26:26,210 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-12-16 18:26:26,245 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 18:26:26,249 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;@3b67a77e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 18:26:26,250 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-12-16 18:26:26,255 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) [2023-12-16 18:26:26,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 18:26:26,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:26,266 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] [2023-12-16 18:26:26,266 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)] === [2023-12-16 18:26:26,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:26,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1216794109, now seen corresponding path program 1 times [2023-12-16 18:26:26,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:26,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281345235] [2023-12-16 18:26:26,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:26,279 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 [2023-12-16 18:26:26,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:26,281 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) [2023-12-16 18:26:26,312 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 [2023-12-16 18:26:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:26,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:26:26,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:26,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:26,743 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:26,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:26,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281345235] [2023-12-16 18:26:26,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281345235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:26,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:26,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:26:26,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383026010] [2023-12-16 18:26:26,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:26,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:26:26,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:26,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:26:26,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:26:26,769 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) [2023-12-16 18:26:27,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:27,206 INFO L93 Difference]: Finished difference Result 671 states and 1171 transitions. [2023-12-16 18:26:27,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:26:27,209 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 [2023-12-16 18:26:27,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:27,218 INFO L225 Difference]: With dead ends: 671 [2023-12-16 18:26:27,218 INFO L226 Difference]: Without dead ends: 387 [2023-12-16 18:26:27,224 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 [2023-12-16 18:26:27,227 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 1922 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2023-12-16 18:26:27,230 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] [2023-12-16 18:26:27,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-12-16 18:26:27,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2023-12-16 18:26:27,277 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) [2023-12-16 18:26:27,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 488 transitions. [2023-12-16 18:26:27,279 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 488 transitions. Word has length 58 [2023-12-16 18:26:27,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:27,279 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 488 transitions. [2023-12-16 18:26:27,280 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) [2023-12-16 18:26:27,280 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 488 transitions. [2023-12-16 18:26:27,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 18:26:27,281 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:27,282 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] [2023-12-16 18:26:27,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 18:26:27,484 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 [2023-12-16 18:26:27,485 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)] === [2023-12-16 18:26:27,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:27,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1040787502, now seen corresponding path program 1 times [2023-12-16 18:26:27,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:27,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833116301] [2023-12-16 18:26:27,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:27,486 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 [2023-12-16 18:26:27,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:27,487 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) [2023-12-16 18:26:27,488 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 [2023-12-16 18:26:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:27,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:26:27,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:27,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:27,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:27,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:27,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833116301] [2023-12-16 18:26:27,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1833116301] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:27,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:27,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:26:27,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82587561] [2023-12-16 18:26:27,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:27,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:26:27,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:27,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:26:27,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:26:27,793 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) [2023-12-16 18:26:27,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:27,986 INFO L93 Difference]: Finished difference Result 485 states and 610 transitions. [2023-12-16 18:26:27,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:26:27,987 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 [2023-12-16 18:26:27,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:27,988 INFO L225 Difference]: With dead ends: 485 [2023-12-16 18:26:27,988 INFO L226 Difference]: Without dead ends: 285 [2023-12-16 18:26:27,989 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 [2023-12-16 18:26:27,989 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 [2023-12-16 18:26:27,990 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] [2023-12-16 18:26:27,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-12-16 18:26:27,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2023-12-16 18:26:27,994 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) [2023-12-16 18:26:27,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 357 transitions. [2023-12-16 18:26:27,994 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 357 transitions. Word has length 58 [2023-12-16 18:26:27,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:27,995 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 357 transitions. [2023-12-16 18:26:27,995 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) [2023-12-16 18:26:27,995 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 357 transitions. [2023-12-16 18:26:27,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 18:26:27,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:27,996 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] [2023-12-16 18:26:28,006 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 [2023-12-16 18:26:28,198 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 [2023-12-16 18:26:28,199 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)] === [2023-12-16 18:26:28,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:28,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1884229362, now seen corresponding path program 1 times [2023-12-16 18:26:28,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:28,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351872938] [2023-12-16 18:26:28,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:28,200 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 [2023-12-16 18:26:28,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:28,201 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) [2023-12-16 18:26:28,214 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 [2023-12-16 18:26:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:28,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:26:28,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:28,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:28,467 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:28,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:28,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351872938] [2023-12-16 18:26:28,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351872938] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:28,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:28,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:26:28,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745588626] [2023-12-16 18:26:28,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:28,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:26:28,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:28,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:26:28,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:26:28,468 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) [2023-12-16 18:26:28,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:28,626 INFO L93 Difference]: Finished difference Result 413 states and 528 transitions. [2023-12-16 18:26:28,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:26:28,627 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 [2023-12-16 18:26:28,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:28,628 INFO L225 Difference]: With dead ends: 413 [2023-12-16 18:26:28,628 INFO L226 Difference]: Without dead ends: 252 [2023-12-16 18:26:28,628 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 [2023-12-16 18:26:28,629 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 [2023-12-16 18:26:28,629 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] [2023-12-16 18:26:28,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-12-16 18:26:28,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2023-12-16 18:26:28,632 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) [2023-12-16 18:26:28,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 318 transitions. [2023-12-16 18:26:28,633 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 318 transitions. Word has length 58 [2023-12-16 18:26:28,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:28,633 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 318 transitions. [2023-12-16 18:26:28,633 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) [2023-12-16 18:26:28,633 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 318 transitions. [2023-12-16 18:26:28,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 18:26:28,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:28,634 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] [2023-12-16 18:26:28,647 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 [2023-12-16 18:26:28,846 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 [2023-12-16 18:26:28,847 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)] === [2023-12-16 18:26:28,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:28,847 INFO L85 PathProgramCache]: Analyzing trace with hash -2118690272, now seen corresponding path program 1 times [2023-12-16 18:26:28,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:28,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425937411] [2023-12-16 18:26:28,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:28,848 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 [2023-12-16 18:26:28,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:28,849 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) [2023-12-16 18:26:28,852 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 [2023-12-16 18:26:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:28,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:26:28,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:29,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:29,094 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:29,094 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:29,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425937411] [2023-12-16 18:26:29,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425937411] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:29,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:29,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:26:29,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231779331] [2023-12-16 18:26:29,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:29,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:26:29,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:29,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:26:29,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:26:29,096 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) [2023-12-16 18:26:29,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:29,260 INFO L93 Difference]: Finished difference Result 385 states and 494 transitions. [2023-12-16 18:26:29,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:26:29,260 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 [2023-12-16 18:26:29,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:29,261 INFO L225 Difference]: With dead ends: 385 [2023-12-16 18:26:29,261 INFO L226 Difference]: Without dead ends: 244 [2023-12-16 18:26:29,262 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 [2023-12-16 18:26:29,262 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 [2023-12-16 18:26:29,263 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] [2023-12-16 18:26:29,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-12-16 18:26:29,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2023-12-16 18:26:29,265 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) [2023-12-16 18:26:29,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 308 transitions. [2023-12-16 18:26:29,266 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 308 transitions. Word has length 59 [2023-12-16 18:26:29,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:29,266 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 308 transitions. [2023-12-16 18:26:29,266 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) [2023-12-16 18:26:29,266 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 308 transitions. [2023-12-16 18:26:29,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 18:26:29,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:29,267 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] [2023-12-16 18:26:29,279 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 (5)] Ended with exit code 0 [2023-12-16 18:26:29,469 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 [2023-12-16 18:26:29,470 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)] === [2023-12-16 18:26:29,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:29,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1322654244, now seen corresponding path program 1 times [2023-12-16 18:26:29,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:29,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058271065] [2023-12-16 18:26:29,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:29,471 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 [2023-12-16 18:26:29,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:29,472 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) [2023-12-16 18:26:29,476 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 [2023-12-16 18:26:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:29,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:26:29,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:29,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:29,975 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:29,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:29,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058271065] [2023-12-16 18:26:29,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058271065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:29,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:29,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:26:29,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938421874] [2023-12-16 18:26:29,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:29,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:26:29,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:29,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:26:29,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:26:29,978 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) [2023-12-16 18:26:30,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:30,756 INFO L93 Difference]: Finished difference Result 364 states and 482 transitions. [2023-12-16 18:26:30,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 18:26:30,756 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 [2023-12-16 18:26:30,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:30,757 INFO L225 Difference]: With dead ends: 364 [2023-12-16 18:26:30,757 INFO L226 Difference]: Without dead ends: 298 [2023-12-16 18:26:30,758 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 [2023-12-16 18:26:30,758 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 [2023-12-16 18:26:30,758 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] [2023-12-16 18:26:30,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-16 18:26:30,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-16 18:26:30,761 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) [2023-12-16 18:26:30,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 307 transitions. [2023-12-16 18:26:30,762 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 307 transitions. Word has length 60 [2023-12-16 18:26:30,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:30,762 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 307 transitions. [2023-12-16 18:26:30,762 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) [2023-12-16 18:26:30,762 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 307 transitions. [2023-12-16 18:26:30,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 18:26:30,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:30,763 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] [2023-12-16 18:26:30,772 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 (6)] Ended with exit code 0 [2023-12-16 18:26:30,965 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 [2023-12-16 18:26:30,966 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)] === [2023-12-16 18:26:30,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:30,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1579426260, now seen corresponding path program 1 times [2023-12-16 18:26:30,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:30,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569357875] [2023-12-16 18:26:30,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:30,967 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 [2023-12-16 18:26:30,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:30,968 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) [2023-12-16 18:26:30,969 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 [2023-12-16 18:26:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:31,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:26:31,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:31,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:31,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:31,449 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:31,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569357875] [2023-12-16 18:26:31,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569357875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:31,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:31,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:26:31,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949996389] [2023-12-16 18:26:31,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:31,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:26:31,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:31,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:26:31,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:26:31,451 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) [2023-12-16 18:26:32,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:32,199 INFO L93 Difference]: Finished difference Result 386 states and 509 transitions. [2023-12-16 18:26:32,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 18:26:32,199 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 [2023-12-16 18:26:32,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:32,200 INFO L225 Difference]: With dead ends: 386 [2023-12-16 18:26:32,200 INFO L226 Difference]: Without dead ends: 298 [2023-12-16 18:26:32,201 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 [2023-12-16 18:26:32,201 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 [2023-12-16 18:26:32,201 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] [2023-12-16 18:26:32,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-16 18:26:32,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-16 18:26:32,204 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) [2023-12-16 18:26:32,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 306 transitions. [2023-12-16 18:26:32,205 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 306 transitions. Word has length 60 [2023-12-16 18:26:32,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:32,205 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 306 transitions. [2023-12-16 18:26:32,205 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) [2023-12-16 18:26:32,206 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 306 transitions. [2023-12-16 18:26:32,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 18:26:32,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:32,206 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] [2023-12-16 18:26:32,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 18:26:32,408 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 [2023-12-16 18:26:32,408 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)] === [2023-12-16 18:26:32,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:32,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1013492058, now seen corresponding path program 1 times [2023-12-16 18:26:32,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:32,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061973361] [2023-12-16 18:26:32,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:32,409 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 [2023-12-16 18:26:32,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:32,411 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) [2023-12-16 18:26:32,432 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 [2023-12-16 18:26:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:32,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 18:26:32,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:32,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:32,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:32,729 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:32,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2061973361] [2023-12-16 18:26:32,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2061973361] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:32,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:32,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 18:26:32,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631158655] [2023-12-16 18:26:32,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:32,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 18:26:32,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:32,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 18:26:32,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 18:26:32,730 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) [2023-12-16 18:26:33,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:33,166 INFO L93 Difference]: Finished difference Result 377 states and 481 transitions. [2023-12-16 18:26:33,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 18:26:33,167 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 [2023-12-16 18:26:33,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:33,168 INFO L225 Difference]: With dead ends: 377 [2023-12-16 18:26:33,168 INFO L226 Difference]: Without dead ends: 244 [2023-12-16 18:26:33,168 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 [2023-12-16 18:26:33,169 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, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:26:33,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 348 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 18:26:33,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-12-16 18:26:33,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2023-12-16 18:26:33,171 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) [2023-12-16 18:26:33,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 305 transitions. [2023-12-16 18:26:33,172 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 305 transitions. Word has length 60 [2023-12-16 18:26:33,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:33,172 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 305 transitions. [2023-12-16 18:26:33,172 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) [2023-12-16 18:26:33,173 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 305 transitions. [2023-12-16 18:26:33,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 18:26:33,173 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:33,173 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] [2023-12-16 18:26:33,182 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 [2023-12-16 18:26:33,375 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 [2023-12-16 18:26:33,376 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)] === [2023-12-16 18:26:33,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:33,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1005199851, now seen corresponding path program 1 times [2023-12-16 18:26:33,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:33,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960925782] [2023-12-16 18:26:33,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:33,377 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 [2023-12-16 18:26:33,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:33,378 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) [2023-12-16 18:26:33,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 18:26:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:33,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:26:33,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:33,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:33,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:33,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:33,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960925782] [2023-12-16 18:26:33,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960925782] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:33,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:33,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:26:33,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836504315] [2023-12-16 18:26:33,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:33,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:26:33,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:33,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:26:33,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:26:33,867 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) [2023-12-16 18:26:34,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:34,620 INFO L93 Difference]: Finished difference Result 315 states and 403 transitions. [2023-12-16 18:26:34,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 18:26:34,621 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 [2023-12-16 18:26:34,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:34,624 INFO L225 Difference]: With dead ends: 315 [2023-12-16 18:26:34,624 INFO L226 Difference]: Without dead ends: 298 [2023-12-16 18:26:34,625 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 [2023-12-16 18:26:34,625 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 [2023-12-16 18:26:34,625 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] [2023-12-16 18:26:34,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-16 18:26:34,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-16 18:26:34,631 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) [2023-12-16 18:26:34,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 304 transitions. [2023-12-16 18:26:34,631 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 304 transitions. Word has length 62 [2023-12-16 18:26:34,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:34,631 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 304 transitions. [2023-12-16 18:26:34,632 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) [2023-12-16 18:26:34,632 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 304 transitions. [2023-12-16 18:26:34,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 18:26:34,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:34,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:26:34,638 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 [2023-12-16 18:26:34,835 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 [2023-12-16 18:26:34,835 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)] === [2023-12-16 18:26:34,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:34,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1319054290, now seen corresponding path program 1 times [2023-12-16 18:26:34,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:34,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254361866] [2023-12-16 18:26:34,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:34,836 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 [2023-12-16 18:26:34,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:34,837 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) [2023-12-16 18:26:34,838 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 [2023-12-16 18:26:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:34,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:26:34,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:35,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:35,263 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:35,263 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:35,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254361866] [2023-12-16 18:26:35,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254361866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:35,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:35,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:26:35,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592626289] [2023-12-16 18:26:35,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:35,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:26:35,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:35,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:26:35,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:26:35,265 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) [2023-12-16 18:26:35,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:35,988 INFO L93 Difference]: Finished difference Result 303 states and 388 transitions. [2023-12-16 18:26:35,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 18:26:35,989 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 [2023-12-16 18:26:35,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:35,990 INFO L225 Difference]: With dead ends: 303 [2023-12-16 18:26:35,990 INFO L226 Difference]: Without dead ends: 298 [2023-12-16 18:26:35,990 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 [2023-12-16 18:26:35,990 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 985 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2023-12-16 18:26:35,990 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] [2023-12-16 18:26:35,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-16 18:26:35,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-16 18:26:35,994 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) [2023-12-16 18:26:35,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 303 transitions. [2023-12-16 18:26:35,994 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 303 transitions. Word has length 62 [2023-12-16 18:26:35,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:35,995 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 303 transitions. [2023-12-16 18:26:35,995 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) [2023-12-16 18:26:35,995 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 303 transitions. [2023-12-16 18:26:35,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 18:26:35,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:35,995 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] [2023-12-16 18:26:36,000 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 (10)] Ended with exit code 0 [2023-12-16 18:26:36,198 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 [2023-12-16 18:26:36,198 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)] === [2023-12-16 18:26:36,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:36,198 INFO L85 PathProgramCache]: Analyzing trace with hash -806955644, now seen corresponding path program 1 times [2023-12-16 18:26:36,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:36,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159382600] [2023-12-16 18:26:36,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:36,199 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 [2023-12-16 18:26:36,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:36,200 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) [2023-12-16 18:26:36,220 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 [2023-12-16 18:26:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:36,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:26:36,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:36,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:36,626 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:36,627 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:36,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159382600] [2023-12-16 18:26:36,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159382600] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:36,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:36,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:26:36,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544366663] [2023-12-16 18:26:36,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:36,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:26:36,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:36,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:26:36,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:26:36,628 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) [2023-12-16 18:26:37,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:37,305 INFO L93 Difference]: Finished difference Result 392 states and 510 transitions. [2023-12-16 18:26:37,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 18:26:37,306 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 [2023-12-16 18:26:37,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:37,307 INFO L225 Difference]: With dead ends: 392 [2023-12-16 18:26:37,307 INFO L226 Difference]: Without dead ends: 298 [2023-12-16 18:26:37,308 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 [2023-12-16 18:26:37,308 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, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 18:26:37,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 754 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 18:26:37,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-16 18:26:37,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-16 18:26:37,319 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) [2023-12-16 18:26:37,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 302 transitions. [2023-12-16 18:26:37,320 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 302 transitions. Word has length 62 [2023-12-16 18:26:37,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:37,320 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 302 transitions. [2023-12-16 18:26:37,320 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) [2023-12-16 18:26:37,320 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 302 transitions. [2023-12-16 18:26:37,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 18:26:37,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:37,322 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] [2023-12-16 18:26:37,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 18:26:37,524 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 [2023-12-16 18:26:37,524 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)] === [2023-12-16 18:26:37,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:37,525 INFO L85 PathProgramCache]: Analyzing trace with hash 2033918897, now seen corresponding path program 1 times [2023-12-16 18:26:37,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:37,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [149673149] [2023-12-16 18:26:37,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:37,525 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 [2023-12-16 18:26:37,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:37,526 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) [2023-12-16 18:26:37,527 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 [2023-12-16 18:26:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:37,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:26:37,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:37,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:37,966 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:37,966 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:37,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [149673149] [2023-12-16 18:26:37,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [149673149] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:37,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:37,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:26:37,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50934517] [2023-12-16 18:26:37,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:37,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:26:37,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:37,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:26:37,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:26:37,968 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) [2023-12-16 18:26:38,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:38,553 INFO L93 Difference]: Finished difference Result 369 states and 481 transitions. [2023-12-16 18:26:38,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 18:26:38,554 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 [2023-12-16 18:26:38,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:38,555 INFO L225 Difference]: With dead ends: 369 [2023-12-16 18:26:38,555 INFO L226 Difference]: Without dead ends: 298 [2023-12-16 18:26:38,555 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 [2023-12-16 18:26:38,555 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 [2023-12-16 18:26:38,556 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] [2023-12-16 18:26:38,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-16 18:26:38,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-16 18:26:38,558 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) [2023-12-16 18:26:38,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 301 transitions. [2023-12-16 18:26:38,559 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 301 transitions. Word has length 62 [2023-12-16 18:26:38,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:38,559 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 301 transitions. [2023-12-16 18:26:38,559 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) [2023-12-16 18:26:38,559 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 301 transitions. [2023-12-16 18:26:38,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 18:26:38,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:38,560 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] [2023-12-16 18:26:38,564 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 [2023-12-16 18:26:38,762 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 [2023-12-16 18:26:38,762 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)] === [2023-12-16 18:26:38,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:38,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1443459928, now seen corresponding path program 1 times [2023-12-16 18:26:38,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:38,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160032869] [2023-12-16 18:26:38,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:38,763 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 [2023-12-16 18:26:38,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:38,764 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) [2023-12-16 18:26:38,765 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 [2023-12-16 18:26:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:38,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:26:38,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:39,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:39,210 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:39,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:39,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160032869] [2023-12-16 18:26:39,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [160032869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:39,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:39,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:26:39,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044565860] [2023-12-16 18:26:39,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:39,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:26:39,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:39,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:26:39,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:26:39,211 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) [2023-12-16 18:26:39,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:39,950 INFO L93 Difference]: Finished difference Result 357 states and 466 transitions. [2023-12-16 18:26:39,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 18:26:39,950 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 [2023-12-16 18:26:39,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:39,951 INFO L225 Difference]: With dead ends: 357 [2023-12-16 18:26:39,951 INFO L226 Difference]: Without dead ends: 298 [2023-12-16 18:26:39,951 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 [2023-12-16 18:26:39,952 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 [2023-12-16 18:26:39,952 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] [2023-12-16 18:26:39,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-16 18:26:39,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-16 18:26:39,955 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) [2023-12-16 18:26:39,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 300 transitions. [2023-12-16 18:26:39,955 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 300 transitions. Word has length 62 [2023-12-16 18:26:39,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:39,956 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 300 transitions. [2023-12-16 18:26:39,956 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) [2023-12-16 18:26:39,956 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 300 transitions. [2023-12-16 18:26:39,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 18:26:39,956 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:39,956 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] [2023-12-16 18:26:39,959 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 (13)] Forceful destruction successful, exit code 0 [2023-12-16 18:26:40,159 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 [2023-12-16 18:26:40,159 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)] === [2023-12-16 18:26:40,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:40,159 INFO L85 PathProgramCache]: Analyzing trace with hash 823720425, now seen corresponding path program 1 times [2023-12-16 18:26:40,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:40,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289994956] [2023-12-16 18:26:40,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:40,160 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:26:40,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:40,161 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) [2023-12-16 18:26:40,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 18:26:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:40,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:26:40,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:40,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:40,597 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:40,597 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:40,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289994956] [2023-12-16 18:26:40,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289994956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:40,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:40,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:26:40,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986839280] [2023-12-16 18:26:40,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:40,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:26:40,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:40,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:26:40,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:26:40,599 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) [2023-12-16 18:26:41,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:41,301 INFO L93 Difference]: Finished difference Result 303 states and 384 transitions. [2023-12-16 18:26:41,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 18:26:41,302 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 [2023-12-16 18:26:41,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:41,303 INFO L225 Difference]: With dead ends: 303 [2023-12-16 18:26:41,303 INFO L226 Difference]: Without dead ends: 298 [2023-12-16 18:26:41,303 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 [2023-12-16 18:26:41,303 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 [2023-12-16 18:26:41,304 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] [2023-12-16 18:26:41,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-16 18:26:41,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-16 18:26:41,306 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) [2023-12-16 18:26:41,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 299 transitions. [2023-12-16 18:26:41,307 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 299 transitions. Word has length 62 [2023-12-16 18:26:41,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:41,307 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 299 transitions. [2023-12-16 18:26:41,307 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) [2023-12-16 18:26:41,307 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 299 transitions. [2023-12-16 18:26:41,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 18:26:41,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:41,307 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] [2023-12-16 18:26:41,313 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 [2023-12-16 18:26:41,513 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 [2023-12-16 18:26:41,513 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)] === [2023-12-16 18:26:41,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:41,513 INFO L85 PathProgramCache]: Analyzing trace with hash 2020699465, now seen corresponding path program 1 times [2023-12-16 18:26:41,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:41,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256849538] [2023-12-16 18:26:41,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:41,514 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 [2023-12-16 18:26:41,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:41,515 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) [2023-12-16 18:26:41,516 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 [2023-12-16 18:26:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:41,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:26:41,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:41,948 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:41,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:41,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256849538] [2023-12-16 18:26:41,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256849538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:41,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:41,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:26:41,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957820663] [2023-12-16 18:26:41,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:41,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:26:41,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:41,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:26:41,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:26:41,950 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) [2023-12-16 18:26:42,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:42,656 INFO L93 Difference]: Finished difference Result 354 states and 461 transitions. [2023-12-16 18:26:42,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 18:26:42,656 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 [2023-12-16 18:26:42,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:42,657 INFO L225 Difference]: With dead ends: 354 [2023-12-16 18:26:42,657 INFO L226 Difference]: Without dead ends: 298 [2023-12-16 18:26:42,658 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 [2023-12-16 18:26:42,658 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 [2023-12-16 18:26:42,658 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] [2023-12-16 18:26:42,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-16 18:26:42,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 244. [2023-12-16 18:26:42,661 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) [2023-12-16 18:26:42,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 298 transitions. [2023-12-16 18:26:42,661 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 298 transitions. Word has length 62 [2023-12-16 18:26:42,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:42,661 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 298 transitions. [2023-12-16 18:26:42,662 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) [2023-12-16 18:26:42,662 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 298 transitions. [2023-12-16 18:26:42,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 18:26:42,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:42,662 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] [2023-12-16 18:26:42,671 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 (15)] Forceful destruction successful, exit code 0 [2023-12-16 18:26:42,871 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 [2023-12-16 18:26:42,871 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)] === [2023-12-16 18:26:42,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:42,872 INFO L85 PathProgramCache]: Analyzing trace with hash -29192250, now seen corresponding path program 1 times [2023-12-16 18:26:42,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:42,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203056867] [2023-12-16 18:26:42,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:42,872 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 [2023-12-16 18:26:42,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:42,873 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) [2023-12-16 18:26:42,874 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 [2023-12-16 18:26:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:42,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 18:26:42,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:43,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:43,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:43,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:43,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203056867] [2023-12-16 18:26:43,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203056867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:43,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:43,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 18:26:43,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97410922] [2023-12-16 18:26:43,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:43,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 18:26:43,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:43,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 18:26:43,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 18:26:43,387 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) [2023-12-16 18:26:43,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:43,906 INFO L93 Difference]: Finished difference Result 507 states and 674 transitions. [2023-12-16 18:26:43,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 18:26:43,907 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 [2023-12-16 18:26:43,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:43,908 INFO L225 Difference]: With dead ends: 507 [2023-12-16 18:26:43,908 INFO L226 Difference]: Without dead ends: 420 [2023-12-16 18:26:43,908 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 [2023-12-16 18:26:43,909 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1061 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2023-12-16 18:26:43,909 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] [2023-12-16 18:26:43,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2023-12-16 18:26:43,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 211. [2023-12-16 18:26:43,912 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) [2023-12-16 18:26:43,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 260 transitions. [2023-12-16 18:26:43,912 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 260 transitions. Word has length 64 [2023-12-16 18:26:43,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:43,912 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 260 transitions. [2023-12-16 18:26:43,912 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) [2023-12-16 18:26:43,913 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 260 transitions. [2023-12-16 18:26:43,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 18:26:43,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:43,913 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] [2023-12-16 18:26:43,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-16 18:26:44,115 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 [2023-12-16 18:26:44,116 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)] === [2023-12-16 18:26:44,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:44,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1085248927, now seen corresponding path program 1 times [2023-12-16 18:26:44,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:44,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687466596] [2023-12-16 18:26:44,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:44,116 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 [2023-12-16 18:26:44,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:44,117 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) [2023-12-16 18:26:44,118 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 [2023-12-16 18:26:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:44,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-16 18:26:44,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:46,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:46,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:46,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:46,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687466596] [2023-12-16 18:26:46,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687466596] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:46,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:46,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-16 18:26:46,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401884112] [2023-12-16 18:26:46,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:46,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-16 18:26:46,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:46,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-16 18:26:46,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2023-12-16 18:26:46,299 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) [2023-12-16 18:26:52,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:52,976 INFO L93 Difference]: Finished difference Result 717 states and 924 transitions. [2023-12-16 18:26:52,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 18:26:52,976 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 [2023-12-16 18:26:52,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:52,978 INFO L225 Difference]: With dead ends: 717 [2023-12-16 18:26:52,978 INFO L226 Difference]: Without dead ends: 647 [2023-12-16 18:26:52,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=196, Invalid=734, Unknown=0, NotChecked=0, Total=930 [2023-12-16 18:26:52,979 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, 5.9s IncrementalHoareTripleChecker+Time [2023-12-16 18:26:52,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 5158 Invalid, 2828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2828 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-12-16 18:26:52,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2023-12-16 18:26:52,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 222. [2023-12-16 18:26:52,983 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) [2023-12-16 18:26:52,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 274 transitions. [2023-12-16 18:26:52,984 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 274 transitions. Word has length 64 [2023-12-16 18:26:52,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:52,984 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 274 transitions. [2023-12-16 18:26:52,984 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) [2023-12-16 18:26:52,984 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 274 transitions. [2023-12-16 18:26:52,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 18:26:52,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:52,984 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] [2023-12-16 18:26:52,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 18:26:53,187 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 [2023-12-16 18:26:53,187 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)] === [2023-12-16 18:26:53,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:53,188 INFO L85 PathProgramCache]: Analyzing trace with hash 632833740, now seen corresponding path program 1 times [2023-12-16 18:26:53,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:53,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977234070] [2023-12-16 18:26:53,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:53,188 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 [2023-12-16 18:26:53,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:53,189 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) [2023-12-16 18:26:53,190 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 [2023-12-16 18:26:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:53,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 18:26:53,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:53,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:53,909 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:53,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:53,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977234070] [2023-12-16 18:26:53,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977234070] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:53,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:53,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-16 18:26:53,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238987668] [2023-12-16 18:26:53,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:53,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 18:26:53,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:53,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 18:26:53,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 18:26:53,911 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) [2023-12-16 18:26:54,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:54,461 INFO L93 Difference]: Finished difference Result 418 states and 549 transitions. [2023-12-16 18:26:54,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 18:26:54,462 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 [2023-12-16 18:26:54,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:54,463 INFO L225 Difference]: With dead ends: 418 [2023-12-16 18:26:54,463 INFO L226 Difference]: Without dead ends: 301 [2023-12-16 18:26:54,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2023-12-16 18:26:54,463 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, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:26:54,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 838 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 18:26:54,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-12-16 18:26:54,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 159. [2023-12-16 18:26:54,466 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) [2023-12-16 18:26:54,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 197 transitions. [2023-12-16 18:26:54,466 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 197 transitions. Word has length 64 [2023-12-16 18:26:54,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:54,466 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 197 transitions. [2023-12-16 18:26:54,466 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) [2023-12-16 18:26:54,466 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 197 transitions. [2023-12-16 18:26:54,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-16 18:26:54,467 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:54,467 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] [2023-12-16 18:26:54,472 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 [2023-12-16 18:26:54,669 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 [2023-12-16 18:26:54,670 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)] === [2023-12-16 18:26:54,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:54,670 INFO L85 PathProgramCache]: Analyzing trace with hash -776132116, now seen corresponding path program 1 times [2023-12-16 18:26:54,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:54,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [319031467] [2023-12-16 18:26:54,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:54,671 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 [2023-12-16 18:26:54,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:54,671 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) [2023-12-16 18:26:54,672 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 [2023-12-16 18:26:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:54,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-16 18:26:54,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:55,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:55,632 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:55,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:55,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [319031467] [2023-12-16 18:26:55,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [319031467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:55,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:55,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-16 18:26:55,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720401185] [2023-12-16 18:26:55,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:55,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 18:26:55,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:55,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 18:26:55,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-16 18:26:55,634 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) [2023-12-16 18:26:56,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:56,493 INFO L93 Difference]: Finished difference Result 365 states and 488 transitions. [2023-12-16 18:26:56,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 18:26:56,494 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 [2023-12-16 18:26:56,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:56,494 INFO L225 Difference]: With dead ends: 365 [2023-12-16 18:26:56,495 INFO L226 Difference]: Without dead ends: 295 [2023-12-16 18:26:56,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2023-12-16 18:26:56,495 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 [2023-12-16 18:26:56,495 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] [2023-12-16 18:26:56,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-12-16 18:26:56,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 132. [2023-12-16 18:26:56,497 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) [2023-12-16 18:26:56,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 164 transitions. [2023-12-16 18:26:56,498 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 164 transitions. Word has length 65 [2023-12-16 18:26:56,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:56,498 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 164 transitions. [2023-12-16 18:26:56,498 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) [2023-12-16 18:26:56,498 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 164 transitions. [2023-12-16 18:26:56,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-16 18:26:56,498 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:56,498 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] [2023-12-16 18:26:56,510 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 [2023-12-16 18:26:56,701 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 [2023-12-16 18:26:56,701 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)] === [2023-12-16 18:26:56,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:56,702 INFO L85 PathProgramCache]: Analyzing trace with hash 2125205281, now seen corresponding path program 1 times [2023-12-16 18:26:56,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:56,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744827236] [2023-12-16 18:26:56,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:56,702 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 [2023-12-16 18:26:56,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:56,703 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) [2023-12-16 18:26:56,708 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 [2023-12-16 18:26:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:56,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:26:56,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:26:57,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:26:57,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:26:57,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:26:57,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744827236] [2023-12-16 18:26:57,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [744827236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:26:57,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:26:57,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:26:57,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741854688] [2023-12-16 18:26:57,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:26:57,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:26:57,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:26:57,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:26:57,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:26:57,120 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) [2023-12-16 18:26:57,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:26:57,448 INFO L93 Difference]: Finished difference Result 204 states and 264 transitions. [2023-12-16 18:26:57,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 18:26:57,448 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 [2023-12-16 18:26:57,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:26:57,449 INFO L225 Difference]: With dead ends: 204 [2023-12-16 18:26:57,449 INFO L226 Difference]: Without dead ends: 132 [2023-12-16 18:26:57,449 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 [2023-12-16 18:26:57,450 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 [2023-12-16 18:26:57,450 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] [2023-12-16 18:26:57,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-12-16 18:26:57,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2023-12-16 18:26:57,451 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) [2023-12-16 18:26:57,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 163 transitions. [2023-12-16 18:26:57,452 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 163 transitions. Word has length 65 [2023-12-16 18:26:57,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:26:57,452 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 163 transitions. [2023-12-16 18:26:57,452 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) [2023-12-16 18:26:57,452 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 163 transitions. [2023-12-16 18:26:57,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 18:26:57,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:26:57,452 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] [2023-12-16 18:26:57,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 18:26:57,655 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 [2023-12-16 18:26:57,655 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)] === [2023-12-16 18:26:57,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:26:57,655 INFO L85 PathProgramCache]: Analyzing trace with hash 846749532, now seen corresponding path program 1 times [2023-12-16 18:26:57,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:26:57,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404609896] [2023-12-16 18:26:57,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:26:57,656 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 [2023-12-16 18:26:57,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:26:57,657 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) [2023-12-16 18:26:57,661 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 [2023-12-16 18:26:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:26:57,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-16 18:26:57,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:27:02,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:27:02,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:27:02,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:27:02,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [404609896] [2023-12-16 18:27:02,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [404609896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:27:02,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:27:02,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-16 18:27:02,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602399492] [2023-12-16 18:27:02,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:27:02,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-16 18:27:02,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:27:02,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-16 18:27:02,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2023-12-16 18:27:02,434 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) [2023-12-16 18:27:27,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:27:27,894 INFO L93 Difference]: Finished difference Result 573 states and 772 transitions. [2023-12-16 18:27:27,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 18:27:27,895 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 [2023-12-16 18:27:27,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:27:27,896 INFO L225 Difference]: With dead ends: 573 [2023-12-16 18:27:27,896 INFO L226 Difference]: Without dead ends: 506 [2023-12-16 18:27:27,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=177, Invalid=879, Unknown=0, NotChecked=0, Total=1056 [2023-12-16 18:27:27,897 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 886 mSDsluCounter, 4301 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s 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, 23.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:27:27,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 4682 Invalid, 2235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2234 Invalid, 0 Unknown, 0 Unchecked, 23.1s Time] [2023-12-16 18:27:27,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2023-12-16 18:27:27,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 148. [2023-12-16 18:27:27,900 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) [2023-12-16 18:27:27,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 182 transitions. [2023-12-16 18:27:27,900 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 182 transitions. Word has length 67 [2023-12-16 18:27:27,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:27:27,900 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 182 transitions. [2023-12-16 18:27:27,900 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) [2023-12-16 18:27:27,900 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 182 transitions. [2023-12-16 18:27:27,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 18:27:27,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:27:27,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:27:27,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 18:27:28,104 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 [2023-12-16 18:27:28,104 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)] === [2023-12-16 18:27:28,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:27:28,104 INFO L85 PathProgramCache]: Analyzing trace with hash 766856175, now seen corresponding path program 1 times [2023-12-16 18:27:28,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:27:28,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594656258] [2023-12-16 18:27:28,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:27:28,105 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 [2023-12-16 18:27:28,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:27:28,106 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) [2023-12-16 18:27:28,106 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 [2023-12-16 18:27:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:27:28,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 18:27:28,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:27:28,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:27:28,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:27:28,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:27:28,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594656258] [2023-12-16 18:27:28,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594656258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:27:28,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:27:28,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 18:27:28,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993456019] [2023-12-16 18:27:28,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:27:28,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 18:27:28,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:27:28,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 18:27:28,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 18:27:28,573 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) [2023-12-16 18:27:28,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:27:28,972 INFO L93 Difference]: Finished difference Result 215 states and 278 transitions. [2023-12-16 18:27:28,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 18:27:28,973 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 [2023-12-16 18:27:28,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:27:28,973 INFO L225 Difference]: With dead ends: 215 [2023-12-16 18:27:28,973 INFO L226 Difference]: Without dead ends: 209 [2023-12-16 18:27:28,974 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 [2023-12-16 18:27:28,974 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 483 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2023-12-16 18:27:28,974 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] [2023-12-16 18:27:28,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-16 18:27:28,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 141. [2023-12-16 18:27:28,976 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) [2023-12-16 18:27:28,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 175 transitions. [2023-12-16 18:27:28,976 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 175 transitions. Word has length 68 [2023-12-16 18:27:28,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:27:28,977 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 175 transitions. [2023-12-16 18:27:28,977 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) [2023-12-16 18:27:28,977 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 175 transitions. [2023-12-16 18:27:28,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 18:27:28,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:27:28,977 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] [2023-12-16 18:27:28,992 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 [2023-12-16 18:27:29,180 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 [2023-12-16 18:27:29,180 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)] === [2023-12-16 18:27:29,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:27:29,181 INFO L85 PathProgramCache]: Analyzing trace with hash -482876882, now seen corresponding path program 1 times [2023-12-16 18:27:29,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:27:29,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992688038] [2023-12-16 18:27:29,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:27:29,181 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 [2023-12-16 18:27:29,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:27:29,182 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) [2023-12-16 18:27:29,192 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 [2023-12-16 18:27:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:27:29,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:27:29,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:27:29,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:27:29,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:27:29,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:27:29,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992688038] [2023-12-16 18:27:29,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992688038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:27:29,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:27:29,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:27:29,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929389729] [2023-12-16 18:27:29,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:27:29,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:27:29,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:27:29,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:27:29,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:27:29,661 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) [2023-12-16 18:27:29,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:27:29,990 INFO L93 Difference]: Finished difference Result 201 states and 261 transitions. [2023-12-16 18:27:29,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 18:27:29,990 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 [2023-12-16 18:27:29,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:27:29,991 INFO L225 Difference]: With dead ends: 201 [2023-12-16 18:27:29,991 INFO L226 Difference]: Without dead ends: 141 [2023-12-16 18:27:29,991 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 [2023-12-16 18:27:29,991 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 [2023-12-16 18:27:29,992 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] [2023-12-16 18:27:29,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-16 18:27:29,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2023-12-16 18:27:29,993 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) [2023-12-16 18:27:29,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 173 transitions. [2023-12-16 18:27:29,994 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 173 transitions. Word has length 90 [2023-12-16 18:27:29,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:27:29,994 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 173 transitions. [2023-12-16 18:27:29,994 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) [2023-12-16 18:27:29,994 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 173 transitions. [2023-12-16 18:27:29,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 18:27:29,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:27:29,995 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] [2023-12-16 18:27:29,999 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 [2023-12-16 18:27:30,197 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 [2023-12-16 18:27:30,197 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)] === [2023-12-16 18:27:30,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:27:30,198 INFO L85 PathProgramCache]: Analyzing trace with hash -696431914, now seen corresponding path program 1 times [2023-12-16 18:27:30,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:27:30,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235744359] [2023-12-16 18:27:30,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:27:30,198 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 [2023-12-16 18:27:30,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:27:30,199 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) [2023-12-16 18:27:30,200 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 [2023-12-16 18:27:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:27:30,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:27:30,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:27:30,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:27:30,326 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:27:30,326 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:27:30,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1235744359] [2023-12-16 18:27:30,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1235744359] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:27:30,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:27:30,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:27:30,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302498558] [2023-12-16 18:27:30,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:27:30,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:27:30,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:27:30,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:27:30,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:27:30,327 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) [2023-12-16 18:27:30,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:27:30,340 INFO L93 Difference]: Finished difference Result 241 states and 321 transitions. [2023-12-16 18:27:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:27:30,341 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 [2023-12-16 18:27:30,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:27:30,342 INFO L225 Difference]: With dead ends: 241 [2023-12-16 18:27:30,342 INFO L226 Difference]: Without dead ends: 187 [2023-12-16 18:27:30,342 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 [2023-12-16 18:27:30,342 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 [2023-12-16 18:27:30,342 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] [2023-12-16 18:27:30,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-12-16 18:27:30,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 185. [2023-12-16 18:27:30,344 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) [2023-12-16 18:27:30,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 239 transitions. [2023-12-16 18:27:30,345 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 239 transitions. Word has length 93 [2023-12-16 18:27:30,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:27:30,345 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 239 transitions. [2023-12-16 18:27:30,345 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) [2023-12-16 18:27:30,345 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 239 transitions. [2023-12-16 18:27:30,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 18:27:30,346 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:27:30,346 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] [2023-12-16 18:27:30,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 18:27:30,550 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 [2023-12-16 18:27:30,551 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)] === [2023-12-16 18:27:30,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:27:30,551 INFO L85 PathProgramCache]: Analyzing trace with hash -317932261, now seen corresponding path program 1 times [2023-12-16 18:27:30,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:27:30,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283959309] [2023-12-16 18:27:30,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:27:30,552 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 [2023-12-16 18:27:30,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:27:30,553 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) [2023-12-16 18:27:30,553 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 [2023-12-16 18:27:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:27:30,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:27:30,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:27:30,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:27:30,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:27:30,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:27:30,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283959309] [2023-12-16 18:27:30,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283959309] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:27:30,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:27:30,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:27:30,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182198768] [2023-12-16 18:27:30,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:27:30,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:27:30,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:27:30,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:27:30,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:27:30,694 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) [2023-12-16 18:27:30,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:27:30,708 INFO L93 Difference]: Finished difference Result 365 states and 507 transitions. [2023-12-16 18:27:30,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:27:30,708 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 [2023-12-16 18:27:30,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:27:30,709 INFO L225 Difference]: With dead ends: 365 [2023-12-16 18:27:30,709 INFO L226 Difference]: Without dead ends: 267 [2023-12-16 18:27:30,710 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 [2023-12-16 18:27:30,710 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 [2023-12-16 18:27:30,710 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] [2023-12-16 18:27:30,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-12-16 18:27:30,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 265. [2023-12-16 18:27:30,713 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) [2023-12-16 18:27:30,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 358 transitions. [2023-12-16 18:27:30,714 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 358 transitions. Word has length 94 [2023-12-16 18:27:30,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:27:30,714 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 358 transitions. [2023-12-16 18:27:30,714 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) [2023-12-16 18:27:30,714 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 358 transitions. [2023-12-16 18:27:30,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 18:27:30,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:27:30,714 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] [2023-12-16 18:27:30,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-16 18:27:30,917 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 [2023-12-16 18:27:30,918 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)] === [2023-12-16 18:27:30,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:27:30,918 INFO L85 PathProgramCache]: Analyzing trace with hash 138290890, now seen corresponding path program 1 times [2023-12-16 18:27:30,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:27:30,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85836773] [2023-12-16 18:27:30,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:27:30,919 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 [2023-12-16 18:27:30,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:27:30,919 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) [2023-12-16 18:27:30,921 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 [2023-12-16 18:27:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:27:31,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:27:31,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:27:31,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:27:31,053 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:27:31,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:27:31,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85836773] [2023-12-16 18:27:31,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85836773] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:27:31,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:27:31,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:27:31,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831888361] [2023-12-16 18:27:31,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:27:31,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:27:31,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:27:31,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:27:31,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:27:31,055 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) [2023-12-16 18:27:31,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:27:31,067 INFO L93 Difference]: Finished difference Result 589 states and 840 transitions. [2023-12-16 18:27:31,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:27:31,068 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 [2023-12-16 18:27:31,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:27:31,069 INFO L225 Difference]: With dead ends: 589 [2023-12-16 18:27:31,069 INFO L226 Difference]: Without dead ends: 411 [2023-12-16 18:27:31,070 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 [2023-12-16 18:27:31,070 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 [2023-12-16 18:27:31,070 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] [2023-12-16 18:27:31,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2023-12-16 18:27:31,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 409. [2023-12-16 18:27:31,074 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) [2023-12-16 18:27:31,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 570 transitions. [2023-12-16 18:27:31,075 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 570 transitions. Word has length 95 [2023-12-16 18:27:31,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:27:31,075 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 570 transitions. [2023-12-16 18:27:31,075 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) [2023-12-16 18:27:31,075 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 570 transitions. [2023-12-16 18:27:31,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 18:27:31,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:27:31,076 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] [2023-12-16 18:27:31,083 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 [2023-12-16 18:27:31,280 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 [2023-12-16 18:27:31,280 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)] === [2023-12-16 18:27:31,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:27:31,281 INFO L85 PathProgramCache]: Analyzing trace with hash -347860913, now seen corresponding path program 1 times [2023-12-16 18:27:31,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:27:31,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240322499] [2023-12-16 18:27:31,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:27:31,281 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 [2023-12-16 18:27:31,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:27:31,282 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) [2023-12-16 18:27:31,283 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 [2023-12-16 18:27:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:27:31,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 18:27:31,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:27:31,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:27:31,963 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:27:31,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:27:31,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240322499] [2023-12-16 18:27:31,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240322499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:27:31,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:27:31,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 18:27:31,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117971511] [2023-12-16 18:27:31,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:27:31,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:27:31,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:27:31,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:27:31,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:27:31,965 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) [2023-12-16 18:27:32,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:27:32,063 INFO L93 Difference]: Finished difference Result 2019 states and 2955 transitions. [2023-12-16 18:27:32,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 18:27:32,063 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 [2023-12-16 18:27:32,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:27:32,067 INFO L225 Difference]: With dead ends: 2019 [2023-12-16 18:27:32,067 INFO L226 Difference]: Without dead ends: 1697 [2023-12-16 18:27:32,068 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 [2023-12-16 18:27:32,069 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 [2023-12-16 18:27:32,069 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] [2023-12-16 18:27:32,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2023-12-16 18:27:32,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1049. [2023-12-16 18:27:32,083 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) [2023-12-16 18:27:32,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 1498 transitions. [2023-12-16 18:27:32,085 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 1498 transitions. Word has length 96 [2023-12-16 18:27:32,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:27:32,085 INFO L495 AbstractCegarLoop]: Abstraction has 1049 states and 1498 transitions. [2023-12-16 18:27:32,085 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) [2023-12-16 18:27:32,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 1498 transitions. [2023-12-16 18:27:32,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-16 18:27:32,085 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:27:32,086 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] [2023-12-16 18:27:32,099 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 [2023-12-16 18:27:32,288 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 [2023-12-16 18:27:32,289 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)] === [2023-12-16 18:27:32,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:27:32,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1681607169, now seen corresponding path program 1 times [2023-12-16 18:27:32,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:27:32,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287449547] [2023-12-16 18:27:32,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:27:32,289 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 [2023-12-16 18:27:32,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:27:32,290 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) [2023-12-16 18:27:32,291 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 [2023-12-16 18:27:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:27:32,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:27:32,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:27:32,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:27:32,486 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:27:32,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:27:32,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287449547] [2023-12-16 18:27:32,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287449547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:27:32,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:27:32,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:27:32,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018555917] [2023-12-16 18:27:32,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:27:32,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:27:32,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:27:32,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:27:32,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:27:32,487 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) [2023-12-16 18:27:32,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:27:32,512 INFO L93 Difference]: Finished difference Result 2845 states and 4084 transitions. [2023-12-16 18:27:32,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:27:32,513 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 [2023-12-16 18:27:32,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:27:32,517 INFO L225 Difference]: With dead ends: 2845 [2023-12-16 18:27:32,518 INFO L226 Difference]: Without dead ends: 1883 [2023-12-16 18:27:32,519 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 [2023-12-16 18:27:32,519 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 [2023-12-16 18:27:32,519 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] [2023-12-16 18:27:32,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2023-12-16 18:27:32,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1857. [2023-12-16 18:27:32,537 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) [2023-12-16 18:27:32,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1857 states to 1857 states and 2590 transitions. [2023-12-16 18:27:32,539 INFO L78 Accepts]: Start accepts. Automaton has 1857 states and 2590 transitions. Word has length 98 [2023-12-16 18:27:32,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:27:32,539 INFO L495 AbstractCegarLoop]: Abstraction has 1857 states and 2590 transitions. [2023-12-16 18:27:32,539 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) [2023-12-16 18:27:32,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1857 states and 2590 transitions. [2023-12-16 18:27:32,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 18:27:32,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:27:32,540 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] [2023-12-16 18:27:32,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-16 18:27:32,745 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 [2023-12-16 18:27:32,745 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)] === [2023-12-16 18:27:32,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:27:32,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1025766666, now seen corresponding path program 1 times [2023-12-16 18:27:32,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:27:32,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782338107] [2023-12-16 18:27:32,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:27:32,746 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 [2023-12-16 18:27:32,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:27:32,747 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) [2023-12-16 18:27:32,748 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 [2023-12-16 18:27:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:27:32,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 18:27:32,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:27:32,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:27:32,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:27:32,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:27:32,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782338107] [2023-12-16 18:27:32,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782338107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:27:32,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:27:32,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:27:32,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730812085] [2023-12-16 18:27:32,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:27:32,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:27:32,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:27:32,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:27:32,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:27:32,882 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) [2023-12-16 18:27:32,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:27:32,945 INFO L93 Difference]: Finished difference Result 3367 states and 4672 transitions. [2023-12-16 18:27:32,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 18:27:32,945 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 [2023-12-16 18:27:32,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:27:32,952 INFO L225 Difference]: With dead ends: 3367 [2023-12-16 18:27:32,952 INFO L226 Difference]: Without dead ends: 3365 [2023-12-16 18:27:32,953 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 [2023-12-16 18:27:32,954 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 [2023-12-16 18:27:32,954 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] [2023-12-16 18:27:32,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3365 states. [2023-12-16 18:27:32,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3365 to 1953. [2023-12-16 18:27:32,976 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) [2023-12-16 18:27:32,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1953 states to 1953 states and 2678 transitions. [2023-12-16 18:27:32,978 INFO L78 Accepts]: Start accepts. Automaton has 1953 states and 2678 transitions. Word has length 99 [2023-12-16 18:27:32,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:27:32,978 INFO L495 AbstractCegarLoop]: Abstraction has 1953 states and 2678 transitions. [2023-12-16 18:27:32,978 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) [2023-12-16 18:27:32,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1953 states and 2678 transitions. [2023-12-16 18:27:32,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 18:27:32,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:27:32,979 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] [2023-12-16 18:27:32,995 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 [2023-12-16 18:27:33,195 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 [2023-12-16 18:27:33,195 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)] === [2023-12-16 18:27:33,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:27:33,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1174018370, now seen corresponding path program 1 times [2023-12-16 18:27:33,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:27:33,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048301639] [2023-12-16 18:27:33,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:27:33,196 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 [2023-12-16 18:27:33,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:27:33,197 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) [2023-12-16 18:27:33,198 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 [2023-12-16 18:27:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:27:33,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:27:33,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:27:33,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:27:33,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:27:33,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:27:33,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048301639] [2023-12-16 18:27:33,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048301639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:27:33,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:27:33,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:27:33,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624004688] [2023-12-16 18:27:33,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:27:33,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:27:33,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:27:33,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:27:33,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:27:33,337 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) [2023-12-16 18:27:33,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:27:33,353 INFO L93 Difference]: Finished difference Result 3784 states and 5276 transitions. [2023-12-16 18:27:33,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:27:33,354 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 [2023-12-16 18:27:33,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:27:33,359 INFO L225 Difference]: With dead ends: 3784 [2023-12-16 18:27:33,359 INFO L226 Difference]: Without dead ends: 2749 [2023-12-16 18:27:33,360 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 [2023-12-16 18:27:33,360 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 [2023-12-16 18:27:33,361 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] [2023-12-16 18:27:33,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2023-12-16 18:27:33,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 2747. [2023-12-16 18:27:33,383 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) [2023-12-16 18:27:33,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2747 states to 2747 states and 3772 transitions. [2023-12-16 18:27:33,386 INFO L78 Accepts]: Start accepts. Automaton has 2747 states and 3772 transitions. Word has length 99 [2023-12-16 18:27:33,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:27:33,386 INFO L495 AbstractCegarLoop]: Abstraction has 2747 states and 3772 transitions. [2023-12-16 18:27:33,387 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) [2023-12-16 18:27:33,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2747 states and 3772 transitions. [2023-12-16 18:27:33,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-16 18:27:33,388 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:27:33,388 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] [2023-12-16 18:27:33,391 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 [2023-12-16 18:27:33,590 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 [2023-12-16 18:27:33,591 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)] === [2023-12-16 18:27:33,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:27:33,591 INFO L85 PathProgramCache]: Analyzing trace with hash 392690215, now seen corresponding path program 1 times [2023-12-16 18:27:33,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:27:33,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071011421] [2023-12-16 18:27:33,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:27:33,592 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 [2023-12-16 18:27:33,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:27:33,593 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) [2023-12-16 18:27:33,593 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 [2023-12-16 18:27:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:27:33,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:27:33,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:27:33,752 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:27:33,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:27:33,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:27:33,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071011421] [2023-12-16 18:27:33,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071011421] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:27:33,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:27:33,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:27:33,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743473407] [2023-12-16 18:27:33,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:27:33,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:27:33,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:27:33,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:27:33,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:27:33,754 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) [2023-12-16 18:27:33,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:27:33,771 INFO L93 Difference]: Finished difference Result 4609 states and 6381 transitions. [2023-12-16 18:27:33,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:27:33,771 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 [2023-12-16 18:27:33,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:27:33,775 INFO L225 Difference]: With dead ends: 4609 [2023-12-16 18:27:33,775 INFO L226 Difference]: Without dead ends: 1951 [2023-12-16 18:27:33,777 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 [2023-12-16 18:27:33,778 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 [2023-12-16 18:27:33,778 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] [2023-12-16 18:27:33,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2023-12-16 18:27:33,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1949. [2023-12-16 18:27:33,794 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) [2023-12-16 18:27:33,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 2678 transitions. [2023-12-16 18:27:33,796 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 2678 transitions. Word has length 124 [2023-12-16 18:27:33,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:27:33,797 INFO L495 AbstractCegarLoop]: Abstraction has 1949 states and 2678 transitions. [2023-12-16 18:27:33,797 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) [2023-12-16 18:27:33,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 2678 transitions. [2023-12-16 18:27:33,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-16 18:27:33,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:27:33,798 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] [2023-12-16 18:27:33,810 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 [2023-12-16 18:27:34,001 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 [2023-12-16 18:27:34,001 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)] === [2023-12-16 18:27:34,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:27:34,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1756360535, now seen corresponding path program 1 times [2023-12-16 18:27:34,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:27:34,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148409214] [2023-12-16 18:27:34,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:27:34,002 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 [2023-12-16 18:27:34,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:27:34,003 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) [2023-12-16 18:27:34,003 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 (32)] Waiting until timeout for monitored process [2023-12-16 18:27:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:27:34,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 18:27:34,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:27:34,861 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:27:34,861 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:27:35,188 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:27:35,188 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:27:35,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148409214] [2023-12-16 18:27:35,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148409214] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:27:35,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:27:35,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-12-16 18:27:35,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497164966] [2023-12-16 18:27:35,188 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:27:35,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-16 18:27:35,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:27:35,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-16 18:27:35,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2023-12-16 18:27:35,189 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) Received shutdown request... [2023-12-16 18:27:36,416 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:27:36,416 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:27:36,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 18:27:36,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=345, Invalid=1377, Unknown=0, NotChecked=0, Total=1722 [2023-12-16 18:27:36,417 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 589 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 18:27:36,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 592 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 18:27:36,418 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (10 of 11 remaining) [2023-12-16 18:27:36,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-16 18:27:36,621 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 [2023-12-16 18:27:36,621 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (1949states) and FLOYD_HOARE automaton (currently 20 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-7-1 term,while SimplifyDDA2 was simplifying 7 xjuncts wrt. a ATOM-1 context. [2023-12-16 18:27:36,623 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2023-12-16 18:27:36,623 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2023-12-16 18:27:36,623 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (7 of 11 remaining) [2023-12-16 18:27:36,623 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (6 of 11 remaining) [2023-12-16 18:27:36,623 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2023-12-16 18:27:36,623 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2023-12-16 18:27:36,624 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2023-12-16 18:27:36,624 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2023-12-16 18:27:36,624 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2023-12-16 18:27:36,624 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2023-12-16 18:27:36,626 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:27:36,628 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 18:27:36,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:27:36 BoogieIcfgContainer [2023-12-16 18:27:36,630 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 18:27:36,630 INFO L158 Benchmark]: Toolchain (without parser) took 72844.74ms. Allocated memory was 249.6MB in the beginning and 463.5MB in the end (delta: 213.9MB). Free memory was 195.8MB in the beginning and 321.1MB in the end (delta: -125.3MB). Peak memory consumption was 89.7MB. Max. memory is 8.0GB. [2023-12-16 18:27:36,630 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 195.0MB. Free memory is still 145.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 18:27:36,630 INFO L158 Benchmark]: CACSL2BoogieTranslator took 646.50ms. Allocated memory is still 249.6MB. Free memory was 195.5MB in the beginning and 192.9MB in the end (delta: 2.6MB). Peak memory consumption was 46.4MB. Max. memory is 8.0GB. [2023-12-16 18:27:36,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.44ms. Allocated memory is still 249.6MB. Free memory was 192.9MB in the beginning and 184.0MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-16 18:27:36,630 INFO L158 Benchmark]: Boogie Preprocessor took 127.36ms. Allocated memory is still 249.6MB. Free memory was 184.0MB in the beginning and 173.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 18:27:36,631 INFO L158 Benchmark]: RCFGBuilder took 1536.07ms. Allocated memory is still 249.6MB. Free memory was 173.0MB in the beginning and 129.1MB in the end (delta: 43.9MB). Peak memory consumption was 91.2MB. Max. memory is 8.0GB. [2023-12-16 18:27:36,631 INFO L158 Benchmark]: TraceAbstraction took 70435.19ms. Allocated memory was 249.6MB in the beginning and 463.5MB in the end (delta: 213.9MB). Free memory was 128.6MB in the beginning and 321.1MB in the end (delta: -192.5MB). Peak memory consumption was 21.4MB. Max. memory is 8.0GB. [2023-12-16 18:27:36,631 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 195.0MB. Free memory is still 145.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 646.50ms. Allocated memory is still 249.6MB. Free memory was 195.5MB in the beginning and 192.9MB in the end (delta: 2.6MB). Peak memory consumption was 46.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 95.44ms. Allocated memory is still 249.6MB. Free memory was 192.9MB in the beginning and 184.0MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 127.36ms. Allocated memory is still 249.6MB. Free memory was 184.0MB in the beginning and 173.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * RCFGBuilder took 1536.07ms. Allocated memory is still 249.6MB. Free memory was 173.0MB in the beginning and 129.1MB in the end (delta: 43.9MB). Peak memory consumption was 91.2MB. Max. memory is 8.0GB. * TraceAbstraction took 70435.19ms. Allocated memory was 249.6MB in the beginning and 463.5MB in the end (delta: 213.9MB). Free memory was 128.6MB in the beginning and 321.1MB in the end (delta: -192.5MB). Peak memory consumption was 21.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 2493]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2493). Cancelled while NwaCegarLoop was constructing difference of abstraction (1949states) and FLOYD_HOARE automaton (currently 20 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-7-1 term,while SimplifyDDA2 was simplifying 7 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 1187]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1187). Cancelled while NwaCegarLoop was constructing difference of abstraction (1949states) and FLOYD_HOARE automaton (currently 20 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-7-1 term,while SimplifyDDA2 was simplifying 7 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 1704]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1704). Cancelled while NwaCegarLoop was constructing difference of abstraction (1949states) and FLOYD_HOARE automaton (currently 20 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-7-1 term,while SimplifyDDA2 was simplifying 7 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 1960]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1960). Cancelled while NwaCegarLoop was constructing difference of abstraction (1949states) and FLOYD_HOARE automaton (currently 20 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-7-1 term,while SimplifyDDA2 was simplifying 7 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 2199]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2199). Cancelled while NwaCegarLoop was constructing difference of abstraction (1949states) and FLOYD_HOARE automaton (currently 20 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-7-1 term,while SimplifyDDA2 was simplifying 7 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 2743]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2743). Cancelled while NwaCegarLoop was constructing difference of abstraction (1949states) and FLOYD_HOARE automaton (currently 20 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-7-1 term,while SimplifyDDA2 was simplifying 7 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 2999]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2999). Cancelled while NwaCegarLoop was constructing difference of abstraction (1949states) and FLOYD_HOARE automaton (currently 20 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-7-1 term,while SimplifyDDA2 was simplifying 7 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 3238]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3238). Cancelled while NwaCegarLoop was constructing difference of abstraction (1949states) and FLOYD_HOARE automaton (currently 20 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-7-1 term,while SimplifyDDA2 was simplifying 7 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 3506]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3506). Cancelled while NwaCegarLoop was constructing difference of abstraction (1949states) and FLOYD_HOARE automaton (currently 20 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-7-1 term,while SimplifyDDA2 was simplifying 7 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 3746]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3746). Cancelled while NwaCegarLoop was constructing difference of abstraction (1949states) and FLOYD_HOARE automaton (currently 20 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-7-1 term,while SimplifyDDA2 was simplifying 7 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 3997]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3997). Cancelled while NwaCegarLoop was constructing difference of abstraction (1949states) and FLOYD_HOARE automaton (currently 20 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-7-1 term,while SimplifyDDA2 was simplifying 7 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 535 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 70.4s, OverallIterations: 31, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 44.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21352 SdHoareTripleChecker+Valid, 38.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21352 mSDsluCounter, 27106 SdHoareTripleChecker+Invalid, 36.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20510 mSDsCounter, 134 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13580 IncrementalHoareTripleChecker+Invalid, 13714 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 134 mSolverCounterUnsat, 6596 mSDtfsCounter, 13580 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2565 GetRequests, 2216 SyntacticMatches, 0 SemanticMatches, 348 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 989 ImplicationChecksByTransitivity, 11.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2747occurred in iteration=29, InterpolantAutomatonStates: 256, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 30 MinimizatonAttempts, 3947 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 15.9s InterpolantComputationTime, 2317 NumberOfCodeBlocks, 2317 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 2410 ConstructedInterpolants, 900 QuantifiedInterpolants, 29915 SizeOfPredicates, 140 NumberOfNonLiveVariables, 6787 ConjunctsInSsa, 259 ConjunctsInUnsatCore, 32 InterpolantComputations, 30 PerfectInterpolantSequences, 41/45 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown