/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/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 22:31:48,083 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 22:31:48,147 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 22:31:48,150 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 22:31:48,150 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 22:31:48,172 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 22:31:48,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 22:31:48,173 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 22:31:48,173 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 22:31:48,176 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 22:31:48,176 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 22:31:48,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 22:31:48,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 22:31:48,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 22:31:48,178 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 22:31:48,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 22:31:48,178 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 22:31:48,179 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 22:31:48,179 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 22:31:48,179 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 22:31:48,179 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 22:31:48,179 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 22:31:48,179 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 22:31:48,180 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 22:31:48,180 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 22:31:48,181 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 22:31:48,181 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 22:31:48,181 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 22:31:48,181 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 22:31:48,181 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 22:31:48,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 22:31:48,182 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 22:31:48,182 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 22:31:48,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 22:31:48,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 22:31:48,182 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 22:31:48,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 22:31:48,183 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 22:31:48,183 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 22:31:48,183 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 22:31:48,183 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 22:31:48,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 22:31:48,183 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 22:31:48,183 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 22:31:48,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 22:31:48,184 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 22:31:48,184 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 22:31:48,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 22:31:48,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 22:31:48,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 22:31:48,377 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 22:31:48,377 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 22:31:48,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2023-12-24 22:31:49,367 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 22:31:49,533 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 22:31:49,536 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2023-12-24 22:31:49,541 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27c7afb9/ea16478cdc5c4649884851bfc70f6b37/FLAG8b8e28b68 [2023-12-24 22:31:49,550 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27c7afb9/ea16478cdc5c4649884851bfc70f6b37 [2023-12-24 22:31:49,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 22:31:49,552 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 22:31:49,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 22:31:49,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 22:31:49,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 22:31:49,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 10:31:49" (1/1) ... [2023-12-24 22:31:49,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544068e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:31:49, skipping insertion in model container [2023-12-24 22:31:49,557 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 10:31:49" (1/1) ... [2023-12-24 22:31:49,587 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 22:31:49,701 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1066,1079] [2023-12-24 22:31:49,705 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1266,1279] [2023-12-24 22:31:49,707 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1613,1626] [2023-12-24 22:31:49,714 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1813,1826] [2023-12-24 22:31:49,716 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2024,2037] [2023-12-24 22:31:49,719 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2224,2237] [2023-12-24 22:31:49,724 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2629,2642] [2023-12-24 22:31:49,725 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2829,2842] [2023-12-24 22:31:49,726 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3040,3053] [2023-12-24 22:31:49,728 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3243,3256] [2023-12-24 22:31:49,731 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3583,3596] [2023-12-24 22:31:49,733 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3786,3799] [2023-12-24 22:31:49,735 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4000,4013] [2023-12-24 22:31:49,736 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4203,4216] [2023-12-24 22:31:49,739 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4547,4560] [2023-12-24 22:31:49,741 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4750,4763] [2023-12-24 22:31:49,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 22:31:49,760 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 22:31:49,773 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1066,1079] [2023-12-24 22:31:49,774 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1266,1279] [2023-12-24 22:31:49,776 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1613,1626] [2023-12-24 22:31:49,784 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1813,1826] [2023-12-24 22:31:49,788 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2024,2037] [2023-12-24 22:31:49,789 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2224,2237] [2023-12-24 22:31:49,790 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2629,2642] [2023-12-24 22:31:49,791 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2829,2842] [2023-12-24 22:31:49,791 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3040,3053] [2023-12-24 22:31:49,792 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3243,3256] [2023-12-24 22:31:49,793 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3583,3596] [2023-12-24 22:31:49,794 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3786,3799] [2023-12-24 22:31:49,795 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4000,4013] [2023-12-24 22:31:49,796 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4203,4216] [2023-12-24 22:31:49,797 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4547,4560] [2023-12-24 22:31:49,798 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4750,4763] [2023-12-24 22:31:49,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 22:31:49,810 INFO L206 MainTranslator]: Completed translation [2023-12-24 22:31:49,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:31:49 WrapperNode [2023-12-24 22:31:49,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 22:31:49,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 22:31:49,812 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 22:31:49,812 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 22:31:49,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:31:49" (1/1) ... [2023-12-24 22:31:49,829 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:31:49" (1/1) ... [2023-12-24 22:31:49,866 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 213 [2023-12-24 22:31:49,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 22:31:49,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 22:31:49,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 22:31:49,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 22:31:49,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:31:49" (1/1) ... [2023-12-24 22:31:49,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:31:49" (1/1) ... [2023-12-24 22:31:49,885 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:31:49" (1/1) ... [2023-12-24 22:31:49,899 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]. [2023-12-24 22:31:49,899 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:31:49" (1/1) ... [2023-12-24 22:31:49,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:31:49" (1/1) ... [2023-12-24 22:31:49,907 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:31:49" (1/1) ... [2023-12-24 22:31:49,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:31:49" (1/1) ... [2023-12-24 22:31:49,909 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:31:49" (1/1) ... [2023-12-24 22:31:49,910 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:31:49" (1/1) ... [2023-12-24 22:31:49,911 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 22:31:49,912 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 22:31:49,912 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 22:31:49,912 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 22:31:49,913 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:31:49" (1/1) ... [2023-12-24 22:31:49,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 22:31:49,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 22:31:49,939 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) [2023-12-24 22:31:49,947 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 [2023-12-24 22:31:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 22:31:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 22:31:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 22:31:49,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 22:31:50,011 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 22:31:50,012 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 22:31:50,238 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 22:31:50,253 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 22:31:50,253 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-24 22:31:50,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 10:31:50 BoogieIcfgContainer [2023-12-24 22:31:50,254 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 22:31:50,255 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 22:31:50,255 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 22:31:50,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 22:31:50,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 10:31:49" (1/3) ... [2023-12-24 22:31:50,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6701bdc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 10:31:50, skipping insertion in model container [2023-12-24 22:31:50,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:31:49" (2/3) ... [2023-12-24 22:31:50,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6701bdc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 10:31:50, skipping insertion in model container [2023-12-24 22:31:50,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 10:31:50" (3/3) ... [2023-12-24 22:31:50,259 INFO L112 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i.v+cfa-reducer.c [2023-12-24 22:31:50,269 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 22:31:50,269 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-12-24 22:31:50,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 22:31:50,304 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;@402aa1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 22:31:50,304 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-12-24 22:31:50,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 41 states have (on average 1.9268292682926829) internal successors, (79), 57 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:50,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-24 22:31:50,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:50,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:50,312 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:50,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:50,317 INFO L85 PathProgramCache]: Analyzing trace with hash -7903051, now seen corresponding path program 1 times [2023-12-24 22:31:50,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:50,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316435867] [2023-12-24 22:31:50,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:50,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:31:50,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:50,341 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) [2023-12-24 22:31:50,350 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 [2023-12-24 22:31:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:50,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 22:31:50,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:50,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:50,431 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:31:50,432 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:50,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316435867] [2023-12-24 22:31:50,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316435867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:31:50,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:31:50,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 22:31:50,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653334330] [2023-12-24 22:31:50,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:31:50,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 22:31:50,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:50,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 22:31:50,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 22:31:50,453 INFO L87 Difference]: Start difference. First operand has 58 states, 41 states have (on average 1.9268292682926829) internal successors, (79), 57 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:50,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:50,473 INFO L93 Difference]: Finished difference Result 78 states and 106 transitions. [2023-12-24 22:31:50,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 22:31:50,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2023-12-24 22:31:50,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:50,479 INFO L225 Difference]: With dead ends: 78 [2023-12-24 22:31:50,479 INFO L226 Difference]: Without dead ends: 71 [2023-12-24 22:31:50,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 22:31:50,486 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 56 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:50,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 101 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 22:31:50,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-12-24 22:31:50,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 54. [2023-12-24 22:31:50,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.4871794871794872) internal successors, (58), 53 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) [2023-12-24 22:31:50,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2023-12-24 22:31:50,513 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 8 [2023-12-24 22:31:50,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:50,513 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2023-12-24 22:31:50,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:50,513 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2023-12-24 22:31:50,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-24 22:31:50,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:50,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:50,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-24 22:31:50,733 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 [2023-12-24 22:31:50,733 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:50,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:50,734 INFO L85 PathProgramCache]: Analyzing trace with hash -244990519, now seen corresponding path program 1 times [2023-12-24 22:31:50,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:50,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861786949] [2023-12-24 22:31:50,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:50,735 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 [2023-12-24 22:31:50,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:50,739 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) [2023-12-24 22:31:50,761 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 [2023-12-24 22:31:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:50,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 22:31:50,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:50,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:50,844 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:31:50,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:50,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861786949] [2023-12-24 22:31:50,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861786949] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:31:50,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:31:50,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 22:31:50,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703236542] [2023-12-24 22:31:50,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:31:50,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 22:31:50,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:50,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 22:31:50,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 22:31:50,847 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:50,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:50,942 INFO L93 Difference]: Finished difference Result 137 states and 148 transitions. [2023-12-24 22:31:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 22:31:50,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2023-12-24 22:31:50,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:50,944 INFO L225 Difference]: With dead ends: 137 [2023-12-24 22:31:50,944 INFO L226 Difference]: Without dead ends: 135 [2023-12-24 22:31:50,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 22:31:50,945 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 96 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:50,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 162 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 22:31:50,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-12-24 22:31:50,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 60. [2023-12-24 22:31:50,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 45 states have (on average 1.488888888888889) internal successors, (67), 59 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) [2023-12-24 22:31:50,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2023-12-24 22:31:50,951 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 9 [2023-12-24 22:31:50,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:50,951 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2023-12-24 22:31:50,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:50,951 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2023-12-24 22:31:50,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-24 22:31:50,951 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:50,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:50,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-24 22:31:51,154 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 [2023-12-24 22:31:51,154 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:51,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:51,155 INFO L85 PathProgramCache]: Analyzing trace with hash -241344101, now seen corresponding path program 1 times [2023-12-24 22:31:51,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:51,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341422082] [2023-12-24 22:31:51,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:51,155 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 [2023-12-24 22:31:51,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:51,156 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) [2023-12-24 22:31:51,157 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 [2023-12-24 22:31:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:51,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 22:31:51,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:51,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:51,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:31:51,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:51,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341422082] [2023-12-24 22:31:51,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341422082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:31:51,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:31:51,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 22:31:51,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164863993] [2023-12-24 22:31:51,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:31:51,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 22:31:51,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:51,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 22:31:51,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 22:31:51,233 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:51,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:51,307 INFO L93 Difference]: Finished difference Result 161 states and 182 transitions. [2023-12-24 22:31:51,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 22:31:51,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2023-12-24 22:31:51,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:51,311 INFO L225 Difference]: With dead ends: 161 [2023-12-24 22:31:51,311 INFO L226 Difference]: Without dead ends: 103 [2023-12-24 22:31:51,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 22:31:51,316 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 84 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:51,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 148 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 22:31:51,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-24 22:31:51,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 59. [2023-12-24 22:31:51,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 58 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) [2023-12-24 22:31:51,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2023-12-24 22:31:51,326 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 9 [2023-12-24 22:31:51,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:51,326 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2023-12-24 22:31:51,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:51,326 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2023-12-24 22:31:51,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-24 22:31:51,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:51,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:51,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-24 22:31:51,527 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 [2023-12-24 22:31:51,528 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:51,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:51,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1108271542, now seen corresponding path program 1 times [2023-12-24 22:31:51,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:51,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262011708] [2023-12-24 22:31:51,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:51,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:31:51,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:51,530 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) [2023-12-24 22:31:51,533 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 [2023-12-24 22:31:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:51,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 22:31:51,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:51,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:51,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:31:51,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:51,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262011708] [2023-12-24 22:31:51,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262011708] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:31:51,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:31:51,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 22:31:51,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879329087] [2023-12-24 22:31:51,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:31:51,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 22:31:51,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:51,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 22:31:51,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 22:31:51,580 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:51,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:51,633 INFO L93 Difference]: Finished difference Result 125 states and 136 transitions. [2023-12-24 22:31:51,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 22:31:51,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2023-12-24 22:31:51,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:51,634 INFO L225 Difference]: With dead ends: 125 [2023-12-24 22:31:51,634 INFO L226 Difference]: Without dead ends: 123 [2023-12-24 22:31:51,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 22:31:51,635 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 75 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:51,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 184 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 22:31:51,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-12-24 22:31:51,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 63. [2023-12-24 22:31:51,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 62 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:51,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2023-12-24 22:31:51,639 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 10 [2023-12-24 22:31:51,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:51,639 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2023-12-24 22:31:51,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:51,640 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2023-12-24 22:31:51,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-24 22:31:51,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:51,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:51,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-24 22:31:51,842 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 [2023-12-24 22:31:51,843 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:51,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:51,843 INFO L85 PathProgramCache]: Analyzing trace with hash 787471533, now seen corresponding path program 1 times [2023-12-24 22:31:51,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:51,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799491504] [2023-12-24 22:31:51,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:51,844 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 [2023-12-24 22:31:51,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:51,845 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) [2023-12-24 22:31:51,849 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 [2023-12-24 22:31:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:51,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 22:31:51,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:51,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:51,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:31:51,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:51,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799491504] [2023-12-24 22:31:51,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799491504] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:31:51,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:31:51,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 22:31:51,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177304833] [2023-12-24 22:31:51,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:31:51,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 22:31:51,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:51,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 22:31:51,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 22:31:51,913 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:51,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:51,974 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2023-12-24 22:31:51,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 22:31:51,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2023-12-24 22:31:51,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:51,976 INFO L225 Difference]: With dead ends: 87 [2023-12-24 22:31:51,976 INFO L226 Difference]: Without dead ends: 85 [2023-12-24 22:31:51,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 22:31:51,977 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 76 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:51,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 93 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 22:31:51,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-12-24 22:31:51,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 61. [2023-12-24 22:31:51,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 60 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) [2023-12-24 22:31:51,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2023-12-24 22:31:51,986 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 11 [2023-12-24 22:31:51,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:51,986 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2023-12-24 22:31:51,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:51,986 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2023-12-24 22:31:51,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-24 22:31:51,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:51,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:51,991 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 [2023-12-24 22:31:52,191 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 [2023-12-24 22:31:52,191 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:52,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:52,193 INFO L85 PathProgramCache]: Analyzing trace with hash -3316478, now seen corresponding path program 1 times [2023-12-24 22:31:52,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:52,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068104446] [2023-12-24 22:31:52,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:52,193 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 [2023-12-24 22:31:52,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:52,194 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) [2023-12-24 22:31:52,201 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 [2023-12-24 22:31:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:52,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-24 22:31:52,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:52,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:52,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:31:52,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:52,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068104446] [2023-12-24 22:31:52,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068104446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:31:52,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:31:52,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 22:31:52,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159912413] [2023-12-24 22:31:52,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:31:52,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 22:31:52,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:52,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 22:31:52,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-24 22:31:52,348 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:52,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:52,513 INFO L93 Difference]: Finished difference Result 157 states and 174 transitions. [2023-12-24 22:31:52,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 22:31:52,513 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2023-12-24 22:31:52,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:52,514 INFO L225 Difference]: With dead ends: 157 [2023-12-24 22:31:52,514 INFO L226 Difference]: Without dead ends: 155 [2023-12-24 22:31:52,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-24 22:31:52,515 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 186 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:52,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 252 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 22:31:52,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-12-24 22:31:52,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 70. [2023-12-24 22:31:52,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 57 states have (on average 1.4385964912280702) internal successors, (82), 69 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:52,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions. [2023-12-24 22:31:52,519 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 82 transitions. Word has length 11 [2023-12-24 22:31:52,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:52,519 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 82 transitions. [2023-12-24 22:31:52,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:52,519 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 82 transitions. [2023-12-24 22:31:52,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-24 22:31:52,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:52,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:52,528 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 [2023-12-24 22:31:52,724 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 [2023-12-24 22:31:52,724 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:52,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:52,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1358182141, now seen corresponding path program 1 times [2023-12-24 22:31:52,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:52,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736243018] [2023-12-24 22:31:52,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:52,725 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 [2023-12-24 22:31:52,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:52,726 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) [2023-12-24 22:31:52,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-24 22:31:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:52,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 22:31:52,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:52,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:52,786 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:31:52,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:52,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736243018] [2023-12-24 22:31:52,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736243018] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:31:52,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:31:52,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 22:31:52,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791615991] [2023-12-24 22:31:52,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:31:52,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 22:31:52,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:52,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 22:31:52,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 22:31:52,787 INFO L87 Difference]: Start difference. First operand 70 states and 82 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:52,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:52,845 INFO L93 Difference]: Finished difference Result 133 states and 154 transitions. [2023-12-24 22:31:52,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 22:31:52,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2023-12-24 22:31:52,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:52,846 INFO L225 Difference]: With dead ends: 133 [2023-12-24 22:31:52,846 INFO L226 Difference]: Without dead ends: 131 [2023-12-24 22:31:52,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 22:31:52,847 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 65 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:52,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 159 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 22:31:52,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-12-24 22:31:52,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 72. [2023-12-24 22:31:52,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 59 states have (on average 1.423728813559322) internal successors, (84), 71 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:52,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2023-12-24 22:31:52,851 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 12 [2023-12-24 22:31:52,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:52,851 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2023-12-24 22:31:52,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:52,851 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2023-12-24 22:31:52,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-24 22:31:52,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:52,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:52,858 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 [2023-12-24 22:31:53,053 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 [2023-12-24 22:31:53,054 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:53,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:53,054 INFO L85 PathProgramCache]: Analyzing trace with hash -102806723, now seen corresponding path program 1 times [2023-12-24 22:31:53,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:53,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000884583] [2023-12-24 22:31:53,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:53,055 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 [2023-12-24 22:31:53,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:53,069 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) [2023-12-24 22:31:53,078 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 [2023-12-24 22:31:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:53,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 22:31:53,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:53,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:53,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:31:53,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:53,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000884583] [2023-12-24 22:31:53,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000884583] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:31:53,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:31:53,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 22:31:53,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339187436] [2023-12-24 22:31:53,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:31:53,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 22:31:53,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:53,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 22:31:53,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 22:31:53,132 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:53,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:53,176 INFO L93 Difference]: Finished difference Result 161 states and 178 transitions. [2023-12-24 22:31:53,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 22:31:53,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2023-12-24 22:31:53,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:53,197 INFO L225 Difference]: With dead ends: 161 [2023-12-24 22:31:53,197 INFO L226 Difference]: Without dead ends: 159 [2023-12-24 22:31:53,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 22:31:53,198 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 75 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:53,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 210 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 22:31:53,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-12-24 22:31:53,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 73. [2023-12-24 22:31:53,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 72 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:53,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 85 transitions. [2023-12-24 22:31:53,201 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 85 transitions. Word has length 12 [2023-12-24 22:31:53,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:53,201 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 85 transitions. [2023-12-24 22:31:53,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:53,201 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 85 transitions. [2023-12-24 22:31:53,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-24 22:31:53,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:53,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:53,206 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 [2023-12-24 22:31:53,402 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 [2023-12-24 22:31:53,402 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:53,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:53,403 INFO L85 PathProgramCache]: Analyzing trace with hash 846030708, now seen corresponding path program 1 times [2023-12-24 22:31:53,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:53,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361446326] [2023-12-24 22:31:53,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:53,403 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 [2023-12-24 22:31:53,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:53,412 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) [2023-12-24 22:31:53,413 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 [2023-12-24 22:31:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:53,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-24 22:31:53,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:53,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:53,543 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:31:53,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:53,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361446326] [2023-12-24 22:31:53,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361446326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:31:53,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:31:53,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 22:31:53,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441321097] [2023-12-24 22:31:53,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:31:53,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 22:31:53,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:53,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 22:31:53,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-24 22:31:53,544 INFO L87 Difference]: Start difference. First operand 73 states and 85 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:53,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:53,685 INFO L93 Difference]: Finished difference Result 151 states and 168 transitions. [2023-12-24 22:31:53,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 22:31:53,686 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-12-24 22:31:53,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:53,686 INFO L225 Difference]: With dead ends: 151 [2023-12-24 22:31:53,686 INFO L226 Difference]: Without dead ends: 149 [2023-12-24 22:31:53,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-24 22:31:53,687 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 176 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:53,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 260 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 22:31:53,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-12-24 22:31:53,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 76. [2023-12-24 22:31:53,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 75 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:53,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 89 transitions. [2023-12-24 22:31:53,690 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 89 transitions. Word has length 13 [2023-12-24 22:31:53,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:53,690 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 89 transitions. [2023-12-24 22:31:53,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:53,690 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 89 transitions. [2023-12-24 22:31:53,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-24 22:31:53,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:53,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:53,697 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 [2023-12-24 22:31:53,892 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 [2023-12-24 22:31:53,892 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:53,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:53,893 INFO L85 PathProgramCache]: Analyzing trace with hash 457152298, now seen corresponding path program 1 times [2023-12-24 22:31:53,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:53,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1379755993] [2023-12-24 22:31:53,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:53,893 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:31:53,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:53,895 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) [2023-12-24 22:31:53,895 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 [2023-12-24 22:31:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:53,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 22:31:53,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:53,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:53,940 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:31:53,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:53,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1379755993] [2023-12-24 22:31:53,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1379755993] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:31:53,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:31:53,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 22:31:53,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045232303] [2023-12-24 22:31:53,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:31:53,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 22:31:53,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:53,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 22:31:53,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 22:31:53,941 INFO L87 Difference]: Start difference. First operand 76 states and 89 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:53,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:53,997 INFO L93 Difference]: Finished difference Result 153 states and 170 transitions. [2023-12-24 22:31:53,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 22:31:53,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2023-12-24 22:31:53,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:53,998 INFO L225 Difference]: With dead ends: 153 [2023-12-24 22:31:53,998 INFO L226 Difference]: Without dead ends: 151 [2023-12-24 22:31:53,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 22:31:53,999 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 63 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:53,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 213 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 22:31:54,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-12-24 22:31:54,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 77. [2023-12-24 22:31:54,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 64 states have (on average 1.40625) internal successors, (90), 76 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) [2023-12-24 22:31:54,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 90 transitions. [2023-12-24 22:31:54,002 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 90 transitions. Word has length 14 [2023-12-24 22:31:54,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:54,002 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 90 transitions. [2023-12-24 22:31:54,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:54,002 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 90 transitions. [2023-12-24 22:31:54,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-24 22:31:54,002 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:54,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:54,006 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 [2023-12-24 22:31:54,204 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 [2023-12-24 22:31:54,205 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:54,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:54,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1286823483, now seen corresponding path program 1 times [2023-12-24 22:31:54,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:54,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757367030] [2023-12-24 22:31:54,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:54,206 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 [2023-12-24 22:31:54,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:54,207 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) [2023-12-24 22:31:54,211 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 [2023-12-24 22:31:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:54,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-24 22:31:54,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:54,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:54,292 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:31:54,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:54,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757367030] [2023-12-24 22:31:54,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757367030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:31:54,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:31:54,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 22:31:54,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369187938] [2023-12-24 22:31:54,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:31:54,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 22:31:54,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:54,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 22:31:54,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-24 22:31:54,294 INFO L87 Difference]: Start difference. First operand 77 states and 90 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:54,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:54,358 INFO L93 Difference]: Finished difference Result 150 states and 173 transitions. [2023-12-24 22:31:54,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 22:31:54,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-12-24 22:31:54,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:54,359 INFO L225 Difference]: With dead ends: 150 [2023-12-24 22:31:54,359 INFO L226 Difference]: Without dead ends: 148 [2023-12-24 22:31:54,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-24 22:31:54,360 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 67 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:54,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 183 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 22:31:54,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-24 22:31:54,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 80. [2023-12-24 22:31:54,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 79 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) [2023-12-24 22:31:54,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 93 transitions. [2023-12-24 22:31:54,362 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 93 transitions. Word has length 15 [2023-12-24 22:31:54,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:54,363 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 93 transitions. [2023-12-24 22:31:54,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:54,363 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 93 transitions. [2023-12-24 22:31:54,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-24 22:31:54,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:54,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:54,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-24 22:31:54,580 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 [2023-12-24 22:31:54,580 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:54,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:54,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1236826449, now seen corresponding path program 1 times [2023-12-24 22:31:54,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:54,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111348054] [2023-12-24 22:31:54,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:54,581 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 [2023-12-24 22:31:54,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:54,582 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) [2023-12-24 22:31:54,583 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 [2023-12-24 22:31:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:54,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 22:31:54,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:54,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:54,632 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:31:54,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:54,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111348054] [2023-12-24 22:31:54,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111348054] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:31:54,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:31:54,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 22:31:54,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583953995] [2023-12-24 22:31:54,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:31:54,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 22:31:54,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:54,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 22:31:54,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 22:31:54,634 INFO L87 Difference]: Start difference. First operand 80 states and 93 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:54,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:54,714 INFO L93 Difference]: Finished difference Result 190 states and 223 transitions. [2023-12-24 22:31:54,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 22:31:54,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2023-12-24 22:31:54,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:54,715 INFO L225 Difference]: With dead ends: 190 [2023-12-24 22:31:54,715 INFO L226 Difference]: Without dead ends: 188 [2023-12-24 22:31:54,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-24 22:31:54,716 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 95 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:54,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 238 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 22:31:54,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-12-24 22:31:54,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 81. [2023-12-24 22:31:54,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 80 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) [2023-12-24 22:31:54,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 94 transitions. [2023-12-24 22:31:54,718 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 94 transitions. Word has length 16 [2023-12-24 22:31:54,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:54,718 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 94 transitions. [2023-12-24 22:31:54,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:54,719 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 94 transitions. [2023-12-24 22:31:54,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-24 22:31:54,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:54,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:54,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-24 22:31:54,921 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 [2023-12-24 22:31:54,921 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:54,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:54,922 INFO L85 PathProgramCache]: Analyzing trace with hash -313081598, now seen corresponding path program 1 times [2023-12-24 22:31:54,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:54,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575187407] [2023-12-24 22:31:54,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:54,922 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 [2023-12-24 22:31:54,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:54,925 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) [2023-12-24 22:31:54,926 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 [2023-12-24 22:31:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:54,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 22:31:54,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:55,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:55,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:31:55,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:55,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575187407] [2023-12-24 22:31:55,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575187407] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:31:55,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:31:55,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-24 22:31:55,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200294053] [2023-12-24 22:31:55,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:31:55,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-24 22:31:55,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:55,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-24 22:31:55,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-24 22:31:55,092 INFO L87 Difference]: Start difference. First operand 81 states and 94 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:55,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:55,337 INFO L93 Difference]: Finished difference Result 296 states and 334 transitions. [2023-12-24 22:31:55,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-24 22:31:55,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2023-12-24 22:31:55,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:55,339 INFO L225 Difference]: With dead ends: 296 [2023-12-24 22:31:55,339 INFO L226 Difference]: Without dead ends: 233 [2023-12-24 22:31:55,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-12-24 22:31:55,340 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 274 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:55,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 496 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 22:31:55,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-12-24 22:31:55,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 89. [2023-12-24 22:31:55,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 76 states have (on average 1.394736842105263) internal successors, (106), 88 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:55,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 106 transitions. [2023-12-24 22:31:55,342 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 106 transitions. Word has length 17 [2023-12-24 22:31:55,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:55,342 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 106 transitions. [2023-12-24 22:31:55,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:55,342 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 106 transitions. [2023-12-24 22:31:55,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-24 22:31:55,343 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:55,343 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:55,347 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 [2023-12-24 22:31:55,545 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 [2023-12-24 22:31:55,545 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:55,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:55,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1012756659, now seen corresponding path program 1 times [2023-12-24 22:31:55,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:55,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61971468] [2023-12-24 22:31:55,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:55,546 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 [2023-12-24 22:31:55,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:55,547 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) [2023-12-24 22:31:55,550 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 [2023-12-24 22:31:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:55,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 22:31:55,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:55,604 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:55,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:31:55,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:55,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:55,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61971468] [2023-12-24 22:31:55,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61971468] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:31:55,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:31:55,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-24 22:31:55,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936241215] [2023-12-24 22:31:55,637 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:31:55,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 22:31:55,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:55,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 22:31:55,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-24 22:31:55,638 INFO L87 Difference]: Start difference. First operand 89 states and 106 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:55,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:55,802 INFO L93 Difference]: Finished difference Result 334 states and 402 transitions. [2023-12-24 22:31:55,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-24 22:31:55,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 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 17 [2023-12-24 22:31:55,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:55,803 INFO L225 Difference]: With dead ends: 334 [2023-12-24 22:31:55,804 INFO L226 Difference]: Without dead ends: 332 [2023-12-24 22:31:55,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-12-24 22:31:55,804 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 521 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:55,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 283 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 22:31:55,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-12-24 22:31:55,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 149. [2023-12-24 22:31:55,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 136 states have (on average 1.4485294117647058) internal successors, (197), 148 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) [2023-12-24 22:31:55,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 197 transitions. [2023-12-24 22:31:55,807 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 197 transitions. Word has length 17 [2023-12-24 22:31:55,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:55,807 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 197 transitions. [2023-12-24 22:31:55,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:55,808 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 197 transitions. [2023-12-24 22:31:55,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-24 22:31:55,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:55,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:55,812 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 [2023-12-24 22:31:56,008 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 [2023-12-24 22:31:56,009 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:56,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:56,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1115590792, now seen corresponding path program 1 times [2023-12-24 22:31:56,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:56,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530108290] [2023-12-24 22:31:56,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:56,010 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 [2023-12-24 22:31:56,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:56,011 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) [2023-12-24 22:31:56,013 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 [2023-12-24 22:31:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:56,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 22:31:56,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:56,074 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:31:56,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:56,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530108290] [2023-12-24 22:31:56,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530108290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:31:56,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:31:56,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 22:31:56,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610895767] [2023-12-24 22:31:56,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:31:56,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 22:31:56,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:56,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 22:31:56,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 22:31:56,077 INFO L87 Difference]: Start difference. First operand 149 states and 197 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:56,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:56,181 INFO L93 Difference]: Finished difference Result 348 states and 430 transitions. [2023-12-24 22:31:56,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 22:31:56,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2023-12-24 22:31:56,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:56,183 INFO L225 Difference]: With dead ends: 348 [2023-12-24 22:31:56,183 INFO L226 Difference]: Without dead ends: 346 [2023-12-24 22:31:56,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-24 22:31:56,183 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 98 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:56,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 409 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 22:31:56,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-12-24 22:31:56,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 151. [2023-12-24 22:31:56,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 138 states have (on average 1.4420289855072463) internal successors, (199), 150 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:56,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 199 transitions. [2023-12-24 22:31:56,187 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 199 transitions. Word has length 18 [2023-12-24 22:31:56,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:56,187 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 199 transitions. [2023-12-24 22:31:56,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:56,187 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 199 transitions. [2023-12-24 22:31:56,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-24 22:31:56,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:56,187 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:56,206 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 [2023-12-24 22:31:56,393 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 [2023-12-24 22:31:56,394 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:56,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:56,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1443728396, now seen corresponding path program 1 times [2023-12-24 22:31:56,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:56,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907117261] [2023-12-24 22:31:56,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:56,394 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 [2023-12-24 22:31:56,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:56,395 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) [2023-12-24 22:31:56,397 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 [2023-12-24 22:31:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:56,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 22:31:56,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:56,453 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:56,453 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:31:56,489 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:56,490 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:56,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907117261] [2023-12-24 22:31:56,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907117261] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:31:56,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:31:56,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-24 22:31:56,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712720985] [2023-12-24 22:31:56,490 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:31:56,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 22:31:56,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:56,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 22:31:56,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-24 22:31:56,491 INFO L87 Difference]: Start difference. First operand 151 states and 199 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:56,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:56,654 INFO L93 Difference]: Finished difference Result 388 states and 463 transitions. [2023-12-24 22:31:56,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-24 22:31:56,654 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 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 18 [2023-12-24 22:31:56,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:56,655 INFO L225 Difference]: With dead ends: 388 [2023-12-24 22:31:56,655 INFO L226 Difference]: Without dead ends: 386 [2023-12-24 22:31:56,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-12-24 22:31:56,656 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 317 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:56,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 401 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 22:31:56,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2023-12-24 22:31:56,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 151. [2023-12-24 22:31:56,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 138 states have (on average 1.4275362318840579) internal successors, (197), 150 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) [2023-12-24 22:31:56,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 197 transitions. [2023-12-24 22:31:56,659 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 197 transitions. Word has length 18 [2023-12-24 22:31:56,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:56,659 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 197 transitions. [2023-12-24 22:31:56,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:56,660 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 197 transitions. [2023-12-24 22:31:56,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-24 22:31:56,660 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:56,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:56,684 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 [2023-12-24 22:31:56,884 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 [2023-12-24 22:31:56,884 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:56,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:56,885 INFO L85 PathProgramCache]: Analyzing trace with hash -223572023, now seen corresponding path program 1 times [2023-12-24 22:31:56,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:56,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660207600] [2023-12-24 22:31:56,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:56,885 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 [2023-12-24 22:31:56,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:56,886 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) [2023-12-24 22:31:56,887 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 [2023-12-24 22:31:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:56,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-24 22:31:56,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:57,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:57,062 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:31:57,062 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:57,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660207600] [2023-12-24 22:31:57,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660207600] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:31:57,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:31:57,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-24 22:31:57,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232971639] [2023-12-24 22:31:57,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:31:57,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-24 22:31:57,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:57,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-24 22:31:57,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-24 22:31:57,063 INFO L87 Difference]: Start difference. First operand 151 states and 197 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:57,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:57,315 INFO L93 Difference]: Finished difference Result 350 states and 425 transitions. [2023-12-24 22:31:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-24 22:31:57,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2023-12-24 22:31:57,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:57,317 INFO L225 Difference]: With dead ends: 350 [2023-12-24 22:31:57,317 INFO L226 Difference]: Without dead ends: 348 [2023-12-24 22:31:57,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-12-24 22:31:57,317 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 237 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:57,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 531 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 22:31:57,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-24 22:31:57,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 153. [2023-12-24 22:31:57,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 140 states have (on average 1.4214285714285715) internal successors, (199), 152 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:57,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 199 transitions. [2023-12-24 22:31:57,320 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 199 transitions. Word has length 19 [2023-12-24 22:31:57,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:57,321 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 199 transitions. [2023-12-24 22:31:57,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:57,321 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 199 transitions. [2023-12-24 22:31:57,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-24 22:31:57,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:57,321 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:57,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-24 22:31:57,521 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 [2023-12-24 22:31:57,522 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:57,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:57,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1805911404, now seen corresponding path program 1 times [2023-12-24 22:31:57,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:57,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017327407] [2023-12-24 22:31:57,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:57,523 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 [2023-12-24 22:31:57,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:57,524 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) [2023-12-24 22:31:57,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-24 22:31:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:57,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 22:31:57,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:57,681 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:57,681 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:31:57,814 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:57,814 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:57,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017327407] [2023-12-24 22:31:57,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017327407] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:31:57,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:31:57,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-24 22:31:57,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902421674] [2023-12-24 22:31:57,815 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:31:57,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-24 22:31:57,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:57,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-24 22:31:57,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-24 22:31:57,816 INFO L87 Difference]: Start difference. First operand 153 states and 199 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:58,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:58,166 INFO L93 Difference]: Finished difference Result 335 states and 409 transitions. [2023-12-24 22:31:58,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-24 22:31:58,167 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 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 19 [2023-12-24 22:31:58,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:58,168 INFO L225 Difference]: With dead ends: 335 [2023-12-24 22:31:58,168 INFO L226 Difference]: Without dead ends: 333 [2023-12-24 22:31:58,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2023-12-24 22:31:58,169 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 579 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:58,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 391 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 22:31:58,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-12-24 22:31:58,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 151. [2023-12-24 22:31:58,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 139 states have (on average 1.410071942446043) internal successors, (196), 150 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:58,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 196 transitions. [2023-12-24 22:31:58,172 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 196 transitions. Word has length 19 [2023-12-24 22:31:58,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:58,172 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 196 transitions. [2023-12-24 22:31:58,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:58,172 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 196 transitions. [2023-12-24 22:31:58,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-24 22:31:58,172 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:58,173 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] [2023-12-24 22:31:58,189 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 [2023-12-24 22:31:58,375 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 [2023-12-24 22:31:58,376 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:58,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:58,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1659206047, now seen corresponding path program 1 times [2023-12-24 22:31:58,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:58,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87171150] [2023-12-24 22:31:58,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:58,377 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 [2023-12-24 22:31:58,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:58,377 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) [2023-12-24 22:31:58,384 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 [2023-12-24 22:31:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:58,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-24 22:31:58,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:58,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:58,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 22:31:58,451 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:58,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87171150] [2023-12-24 22:31:58,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87171150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 22:31:58,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 22:31:58,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 22:31:58,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212345662] [2023-12-24 22:31:58,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:31:58,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 22:31:58,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:58,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 22:31:58,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-24 22:31:58,453 INFO L87 Difference]: Start difference. First operand 151 states and 196 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:58,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:58,633 INFO L93 Difference]: Finished difference Result 448 states and 536 transitions. [2023-12-24 22:31:58,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 22:31:58,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-12-24 22:31:58,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:58,634 INFO L225 Difference]: With dead ends: 448 [2023-12-24 22:31:58,635 INFO L226 Difference]: Without dead ends: 446 [2023-12-24 22:31:58,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-24 22:31:58,635 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 134 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:58,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 736 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 22:31:58,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2023-12-24 22:31:58,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 153. [2023-12-24 22:31:58,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 141 states have (on average 1.4042553191489362) internal successors, (198), 152 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:58,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 198 transitions. [2023-12-24 22:31:58,639 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 198 transitions. Word has length 20 [2023-12-24 22:31:58,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:58,639 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 198 transitions. [2023-12-24 22:31:58,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:58,639 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 198 transitions. [2023-12-24 22:31:58,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-24 22:31:58,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:58,639 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:58,645 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 [2023-12-24 22:31:58,842 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 [2023-12-24 22:31:58,843 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:58,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:58,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1106692647, now seen corresponding path program 1 times [2023-12-24 22:31:58,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:58,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198531260] [2023-12-24 22:31:58,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:58,844 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 [2023-12-24 22:31:58,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:58,846 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) [2023-12-24 22:31:58,846 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 [2023-12-24 22:31:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:58,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 22:31:58,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:58,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:58,903 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:31:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:58,953 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:58,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198531260] [2023-12-24 22:31:58,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198531260] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:31:58,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:31:58,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-24 22:31:58,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451856592] [2023-12-24 22:31:58,953 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:31:58,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 22:31:58,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:58,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 22:31:58,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-24 22:31:58,954 INFO L87 Difference]: Start difference. First operand 153 states and 198 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:59,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:59,206 INFO L93 Difference]: Finished difference Result 300 states and 362 transitions. [2023-12-24 22:31:59,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-24 22:31:59,207 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 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 20 [2023-12-24 22:31:59,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:59,208 INFO L225 Difference]: With dead ends: 300 [2023-12-24 22:31:59,208 INFO L226 Difference]: Without dead ends: 298 [2023-12-24 22:31:59,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-12-24 22:31:59,209 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 302 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:59,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 279 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 22:31:59,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-24 22:31:59,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 157. [2023-12-24 22:31:59,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 145 states have (on average 1.3793103448275863) internal successors, (200), 156 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:59,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 200 transitions. [2023-12-24 22:31:59,216 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 200 transitions. Word has length 20 [2023-12-24 22:31:59,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:59,217 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 200 transitions. [2023-12-24 22:31:59,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:59,217 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 200 transitions. [2023-12-24 22:31:59,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-24 22:31:59,218 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:59,218 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:59,233 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 [2023-12-24 22:31:59,420 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 [2023-12-24 22:31:59,420 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:59,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:59,421 INFO L85 PathProgramCache]: Analyzing trace with hash 148682771, now seen corresponding path program 1 times [2023-12-24 22:31:59,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:59,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529381537] [2023-12-24 22:31:59,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:59,421 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 [2023-12-24 22:31:59,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:59,427 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) [2023-12-24 22:31:59,432 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 (22)] Waiting until timeout for monitored process [2023-12-24 22:31:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:59,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 22:31:59,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:31:59,486 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:59,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:31:59,522 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:31:59,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:31:59,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529381537] [2023-12-24 22:31:59,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529381537] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:31:59,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:31:59,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-24 22:31:59,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892955099] [2023-12-24 22:31:59,522 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:31:59,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 22:31:59,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:31:59,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 22:31:59,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-24 22:31:59,524 INFO L87 Difference]: Start difference. First operand 157 states and 200 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:59,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:31:59,706 INFO L93 Difference]: Finished difference Result 560 states and 653 transitions. [2023-12-24 22:31:59,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-24 22:31:59,706 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 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 20 [2023-12-24 22:31:59,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:31:59,708 INFO L225 Difference]: With dead ends: 560 [2023-12-24 22:31:59,708 INFO L226 Difference]: Without dead ends: 558 [2023-12-24 22:31:59,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2023-12-24 22:31:59,708 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 374 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 22:31:59,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 499 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 22:31:59,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-12-24 22:31:59,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 179. [2023-12-24 22:31:59,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 167 states have (on average 1.3892215568862276) internal successors, (232), 178 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:59,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 232 transitions. [2023-12-24 22:31:59,716 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 232 transitions. Word has length 20 [2023-12-24 22:31:59,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:31:59,716 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 232 transitions. [2023-12-24 22:31:59,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:31:59,716 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 232 transitions. [2023-12-24 22:31:59,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-24 22:31:59,716 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:31:59,716 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:31:59,718 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 [2023-12-24 22:31:59,917 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 [2023-12-24 22:31:59,917 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:31:59,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:31:59,917 INFO L85 PathProgramCache]: Analyzing trace with hash 52270430, now seen corresponding path program 1 times [2023-12-24 22:31:59,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:31:59,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608309677] [2023-12-24 22:31:59,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:31:59,918 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 [2023-12-24 22:31:59,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:31:59,925 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) [2023-12-24 22:31:59,936 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 [2023-12-24 22:31:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:31:59,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 22:31:59,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:00,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:00,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:00,207 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:00,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:00,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608309677] [2023-12-24 22:32:00,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608309677] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:00,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:00,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-24 22:32:00,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784890920] [2023-12-24 22:32:00,208 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:00,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-24 22:32:00,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:00,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-24 22:32:00,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-24 22:32:00,209 INFO L87 Difference]: Start difference. First operand 179 states and 232 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:00,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:00,553 INFO L93 Difference]: Finished difference Result 301 states and 375 transitions. [2023-12-24 22:32:00,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-24 22:32:00,554 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 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 21 [2023-12-24 22:32:00,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:00,555 INFO L225 Difference]: With dead ends: 301 [2023-12-24 22:32:00,555 INFO L226 Difference]: Without dead ends: 299 [2023-12-24 22:32:00,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2023-12-24 22:32:00,556 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 562 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:00,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 349 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 22:32:00,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-12-24 22:32:00,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 177. [2023-12-24 22:32:00,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 166 states have (on average 1.3795180722891567) internal successors, (229), 176 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:00,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 229 transitions. [2023-12-24 22:32:00,559 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 229 transitions. Word has length 21 [2023-12-24 22:32:00,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:00,559 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 229 transitions. [2023-12-24 22:32:00,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:00,559 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 229 transitions. [2023-12-24 22:32:00,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-24 22:32:00,559 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:00,559 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:32:00,562 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 [2023-12-24 22:32:00,760 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 [2023-12-24 22:32:00,760 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:00,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:00,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1620387456, now seen corresponding path program 1 times [2023-12-24 22:32:00,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:00,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2049569667] [2023-12-24 22:32:00,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:00,761 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 [2023-12-24 22:32:00,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:00,762 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) [2023-12-24 22:32:00,763 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 [2023-12-24 22:32:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:00,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 22:32:00,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:00,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:00,824 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:00,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:00,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:00,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2049569667] [2023-12-24 22:32:00,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2049569667] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:00,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:00,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-24 22:32:00,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261677033] [2023-12-24 22:32:00,861 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:00,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 22:32:00,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:00,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 22:32:00,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-24 22:32:00,862 INFO L87 Difference]: Start difference. First operand 177 states and 229 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:01,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:01,073 INFO L93 Difference]: Finished difference Result 419 states and 503 transitions. [2023-12-24 22:32:01,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-24 22:32:01,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 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 22 [2023-12-24 22:32:01,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:01,092 INFO L225 Difference]: With dead ends: 419 [2023-12-24 22:32:01,092 INFO L226 Difference]: Without dead ends: 417 [2023-12-24 22:32:01,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2023-12-24 22:32:01,093 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 388 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:01,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 405 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 22:32:01,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-12-24 22:32:01,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 183. [2023-12-24 22:32:01,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 172 states have (on average 1.3662790697674418) internal successors, (235), 182 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:01,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 235 transitions. [2023-12-24 22:32:01,097 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 235 transitions. Word has length 22 [2023-12-24 22:32:01,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:01,097 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 235 transitions. [2023-12-24 22:32:01,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:01,097 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 235 transitions. [2023-12-24 22:32:01,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-24 22:32:01,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:01,098 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:32:01,106 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 [2023-12-24 22:32:01,298 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 [2023-12-24 22:32:01,298 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:01,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:01,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1307592283, now seen corresponding path program 1 times [2023-12-24 22:32:01,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:01,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539426932] [2023-12-24 22:32:01,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:01,299 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 [2023-12-24 22:32:01,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:01,300 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) [2023-12-24 22:32:01,302 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 [2023-12-24 22:32:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:01,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 22:32:01,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:01,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:01,403 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:01,570 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:01,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:01,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539426932] [2023-12-24 22:32:01,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539426932] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:01,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:01,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-24 22:32:01,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601200745] [2023-12-24 22:32:01,571 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:01,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-24 22:32:01,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:01,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-24 22:32:01,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-24 22:32:01,572 INFO L87 Difference]: Start difference. First operand 183 states and 235 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:01,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:01,807 INFO L93 Difference]: Finished difference Result 411 states and 522 transitions. [2023-12-24 22:32:01,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 22:32:01,808 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 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 23 [2023-12-24 22:32:01,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:01,808 INFO L225 Difference]: With dead ends: 411 [2023-12-24 22:32:01,809 INFO L226 Difference]: Without dead ends: 242 [2023-12-24 22:32:01,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-24 22:32:01,809 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 90 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:01,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 209 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 22:32:01,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-12-24 22:32:01,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 205. [2023-12-24 22:32:01,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 194 states have (on average 1.3453608247422681) internal successors, (261), 204 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:01,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 261 transitions. [2023-12-24 22:32:01,812 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 261 transitions. Word has length 23 [2023-12-24 22:32:01,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:01,813 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 261 transitions. [2023-12-24 22:32:01,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:01,813 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 261 transitions. [2023-12-24 22:32:01,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-24 22:32:01,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:01,813 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:32:01,828 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 [2023-12-24 22:32:02,015 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 [2023-12-24 22:32:02,016 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:02,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:02,016 INFO L85 PathProgramCache]: Analyzing trace with hash -39633880, now seen corresponding path program 1 times [2023-12-24 22:32:02,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:02,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029462801] [2023-12-24 22:32:02,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:02,017 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:32:02,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:02,018 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) [2023-12-24 22:32:02,048 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 [2023-12-24 22:32:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:02,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 22:32:02,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:02,127 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:02,127 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:02,153 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-24 22:32:02,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:02,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029462801] [2023-12-24 22:32:02,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2029462801] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 22:32:02,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 22:32:02,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-12-24 22:32:02,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300241615] [2023-12-24 22:32:02,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:32:02,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 22:32:02,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:02,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 22:32:02,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-24 22:32:02,155 INFO L87 Difference]: Start difference. First operand 205 states and 261 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:02,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:02,231 INFO L93 Difference]: Finished difference Result 285 states and 353 transitions. [2023-12-24 22:32:02,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 22:32:02,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 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 26 [2023-12-24 22:32:02,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:02,232 INFO L225 Difference]: With dead ends: 285 [2023-12-24 22:32:02,232 INFO L226 Difference]: Without dead ends: 283 [2023-12-24 22:32:02,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-24 22:32:02,233 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 60 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:02,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 101 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 22:32:02,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-12-24 22:32:02,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 203. [2023-12-24 22:32:02,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 193 states have (on average 1.3264248704663213) internal successors, (256), 202 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:02,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 256 transitions. [2023-12-24 22:32:02,236 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 256 transitions. Word has length 26 [2023-12-24 22:32:02,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:02,236 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 256 transitions. [2023-12-24 22:32:02,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:02,236 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 256 transitions. [2023-12-24 22:32:02,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-24 22:32:02,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:02,237 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:32:02,247 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 [2023-12-24 22:32:02,439 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 [2023-12-24 22:32:02,439 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:02,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:02,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1228646140, now seen corresponding path program 1 times [2023-12-24 22:32:02,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:02,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591896209] [2023-12-24 22:32:02,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:02,440 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 [2023-12-24 22:32:02,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:02,441 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) [2023-12-24 22:32:02,441 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 [2023-12-24 22:32:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:02,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-24 22:32:02,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:02,508 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:02,508 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:02,572 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:02,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:02,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591896209] [2023-12-24 22:32:02,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591896209] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:02,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:02,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-24 22:32:02,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163127096] [2023-12-24 22:32:02,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:02,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-24 22:32:02,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:02,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-24 22:32:02,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-24 22:32:02,574 INFO L87 Difference]: Start difference. First operand 203 states and 256 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:02,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:02,790 INFO L93 Difference]: Finished difference Result 437 states and 541 transitions. [2023-12-24 22:32:02,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-24 22:32:02,791 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 0 states have call successors, (0), 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 27 [2023-12-24 22:32:02,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:02,792 INFO L225 Difference]: With dead ends: 437 [2023-12-24 22:32:02,792 INFO L226 Difference]: Without dead ends: 435 [2023-12-24 22:32:02,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2023-12-24 22:32:02,792 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 579 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:02,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 221 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 22:32:02,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2023-12-24 22:32:02,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 195. [2023-12-24 22:32:02,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 186 states have (on average 1.3172043010752688) internal successors, (245), 194 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:02,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 245 transitions. [2023-12-24 22:32:02,796 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 245 transitions. Word has length 27 [2023-12-24 22:32:02,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:02,796 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 245 transitions. [2023-12-24 22:32:02,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:02,796 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 245 transitions. [2023-12-24 22:32:02,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-24 22:32:02,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:02,796 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:32:02,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-24 22:32:02,997 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 [2023-12-24 22:32:02,997 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:02,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:02,998 INFO L85 PathProgramCache]: Analyzing trace with hash 566679471, now seen corresponding path program 1 times [2023-12-24 22:32:02,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:02,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941237186] [2023-12-24 22:32:02,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:02,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:32:02,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:02,999 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) [2023-12-24 22:32:03,000 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 [2023-12-24 22:32:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:03,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-24 22:32:03,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:03,316 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:03,316 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:03,491 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:03,491 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:03,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1941237186] [2023-12-24 22:32:03,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1941237186] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:03,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:03,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-24 22:32:03,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639551197] [2023-12-24 22:32:03,492 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:03,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-24 22:32:03,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:03,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-24 22:32:03,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-24 22:32:03,493 INFO L87 Difference]: Start difference. First operand 195 states and 245 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:04,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:04,179 INFO L93 Difference]: Finished difference Result 485 states and 599 transitions. [2023-12-24 22:32:04,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-24 22:32:04,180 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-12-24 22:32:04,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:04,180 INFO L225 Difference]: With dead ends: 485 [2023-12-24 22:32:04,180 INFO L226 Difference]: Without dead ends: 368 [2023-12-24 22:32:04,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=205, Invalid=497, Unknown=0, NotChecked=0, Total=702 [2023-12-24 22:32:04,181 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 549 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:04,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 524 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-24 22:32:04,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-12-24 22:32:04,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 213. [2023-12-24 22:32:04,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 205 states have (on average 1.3219512195121952) internal successors, (271), 212 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:04,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 271 transitions. [2023-12-24 22:32:04,185 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 271 transitions. Word has length 28 [2023-12-24 22:32:04,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:04,185 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 271 transitions. [2023-12-24 22:32:04,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:04,185 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 271 transitions. [2023-12-24 22:32:04,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-24 22:32:04,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:04,186 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:32:04,196 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 [2023-12-24 22:32:04,390 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 [2023-12-24 22:32:04,390 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:04,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:04,391 INFO L85 PathProgramCache]: Analyzing trace with hash 387198571, now seen corresponding path program 1 times [2023-12-24 22:32:04,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:04,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069898708] [2023-12-24 22:32:04,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:04,391 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 [2023-12-24 22:32:04,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:04,392 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) [2023-12-24 22:32:04,393 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 [2023-12-24 22:32:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:04,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-24 22:32:04,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:04,463 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:04,464 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:04,522 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:04,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:04,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069898708] [2023-12-24 22:32:04,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069898708] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:04,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:04,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-24 22:32:04,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123207944] [2023-12-24 22:32:04,523 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:04,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-24 22:32:04,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:04,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-24 22:32:04,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-24 22:32:04,523 INFO L87 Difference]: Start difference. First operand 213 states and 271 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:04,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:04,875 INFO L93 Difference]: Finished difference Result 640 states and 766 transitions. [2023-12-24 22:32:04,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-24 22:32:04,876 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 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 29 [2023-12-24 22:32:04,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:04,877 INFO L225 Difference]: With dead ends: 640 [2023-12-24 22:32:04,877 INFO L226 Difference]: Without dead ends: 638 [2023-12-24 22:32:04,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=181, Invalid=371, Unknown=0, NotChecked=0, Total=552 [2023-12-24 22:32:04,878 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 647 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:04,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 606 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 22:32:04,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-12-24 22:32:04,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 252. [2023-12-24 22:32:04,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 244 states have (on average 1.3360655737704918) internal successors, (326), 251 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:04,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 326 transitions. [2023-12-24 22:32:04,882 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 326 transitions. Word has length 29 [2023-12-24 22:32:04,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:04,882 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 326 transitions. [2023-12-24 22:32:04,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:04,883 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 326 transitions. [2023-12-24 22:32:04,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-24 22:32:04,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:04,883 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-24 22:32:04,885 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 (29)] Ended with exit code 0 [2023-12-24 22:32:05,085 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 [2023-12-24 22:32:05,085 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:05,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:05,086 INFO L85 PathProgramCache]: Analyzing trace with hash -881742026, now seen corresponding path program 1 times [2023-12-24 22:32:05,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:05,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995620264] [2023-12-24 22:32:05,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:05,086 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 [2023-12-24 22:32:05,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:05,087 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) [2023-12-24 22:32:05,089 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 [2023-12-24 22:32:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:05,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-24 22:32:05,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:05,334 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:05,335 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:05,514 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:05,515 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:05,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995620264] [2023-12-24 22:32:05,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995620264] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:05,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:05,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-24 22:32:05,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016844742] [2023-12-24 22:32:05,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:05,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-24 22:32:05,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:05,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-24 22:32:05,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-12-24 22:32:05,516 INFO L87 Difference]: Start difference. First operand 252 states and 326 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 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) [2023-12-24 22:32:06,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:06,356 INFO L93 Difference]: Finished difference Result 392 states and 484 transitions. [2023-12-24 22:32:06,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-24 22:32:06,357 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 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 30 [2023-12-24 22:32:06,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:06,358 INFO L225 Difference]: With dead ends: 392 [2023-12-24 22:32:06,358 INFO L226 Difference]: Without dead ends: 390 [2023-12-24 22:32:06,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=230, Invalid=582, Unknown=0, NotChecked=0, Total=812 [2023-12-24 22:32:06,359 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 374 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:06,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 548 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-24 22:32:06,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-12-24 22:32:06,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 250. [2023-12-24 22:32:06,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 243 states have (on average 1.3251028806584362) internal successors, (322), 249 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:06,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 322 transitions. [2023-12-24 22:32:06,362 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 322 transitions. Word has length 30 [2023-12-24 22:32:06,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:06,362 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 322 transitions. [2023-12-24 22:32:06,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 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) [2023-12-24 22:32:06,362 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 322 transitions. [2023-12-24 22:32:06,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-24 22:32:06,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:06,363 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-24 22:32:06,382 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 [2023-12-24 22:32:06,565 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 [2023-12-24 22:32:06,565 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:06,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:06,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1564194862, now seen corresponding path program 1 times [2023-12-24 22:32:06,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:06,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649677399] [2023-12-24 22:32:06,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:06,566 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 [2023-12-24 22:32:06,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:06,567 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) [2023-12-24 22:32:06,569 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 [2023-12-24 22:32:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:06,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-24 22:32:06,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:06,652 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:06,742 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:06,742 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:06,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649677399] [2023-12-24 22:32:06,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649677399] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:06,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:06,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-24 22:32:06,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305257840] [2023-12-24 22:32:06,742 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:06,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-24 22:32:06,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:06,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-24 22:32:06,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-24 22:32:06,743 INFO L87 Difference]: Start difference. First operand 250 states and 322 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 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) [2023-12-24 22:32:07,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:07,344 INFO L93 Difference]: Finished difference Result 910 states and 1102 transitions. [2023-12-24 22:32:07,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-24 22:32:07,344 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 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 31 [2023-12-24 22:32:07,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:07,346 INFO L225 Difference]: With dead ends: 910 [2023-12-24 22:32:07,346 INFO L226 Difference]: Without dead ends: 908 [2023-12-24 22:32:07,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=294, Invalid=636, Unknown=0, NotChecked=0, Total=930 [2023-12-24 22:32:07,347 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 1136 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:07,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 801 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-24 22:32:07,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2023-12-24 22:32:07,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 380. [2023-12-24 22:32:07,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 373 states have (on average 1.353887399463807) internal successors, (505), 379 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:07,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 505 transitions. [2023-12-24 22:32:07,362 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 505 transitions. Word has length 31 [2023-12-24 22:32:07,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:07,362 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 505 transitions. [2023-12-24 22:32:07,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 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) [2023-12-24 22:32:07,362 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 505 transitions. [2023-12-24 22:32:07,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-24 22:32:07,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:07,363 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-24 22:32:07,367 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 [2023-12-24 22:32:07,568 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 [2023-12-24 22:32:07,568 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:07,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:07,569 INFO L85 PathProgramCache]: Analyzing trace with hash -279533473, now seen corresponding path program 1 times [2023-12-24 22:32:07,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:07,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137908139] [2023-12-24 22:32:07,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:07,570 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:32:07,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:07,571 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) [2023-12-24 22:32:07,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-24 22:32:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:07,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 22:32:07,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:07,670 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:07,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:07,783 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:07,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:07,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137908139] [2023-12-24 22:32:07,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137908139] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:07,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:07,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-24 22:32:07,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675951851] [2023-12-24 22:32:07,784 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:07,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-24 22:32:07,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:07,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-24 22:32:07,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-12-24 22:32:07,785 INFO L87 Difference]: Start difference. First operand 380 states and 505 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:08,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:08,590 INFO L93 Difference]: Finished difference Result 1050 states and 1282 transitions. [2023-12-24 22:32:08,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-24 22:32:08,590 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2023-12-24 22:32:08,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:08,592 INFO L225 Difference]: With dead ends: 1050 [2023-12-24 22:32:08,592 INFO L226 Difference]: Without dead ends: 1048 [2023-12-24 22:32:08,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=434, Invalid=972, Unknown=0, NotChecked=0, Total=1406 [2023-12-24 22:32:08,593 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 1012 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:08,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 1066 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-24 22:32:08,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2023-12-24 22:32:08,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 479. [2023-12-24 22:32:08,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 472 states have (on average 1.353813559322034) internal successors, (639), 478 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:08,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 639 transitions. [2023-12-24 22:32:08,601 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 639 transitions. Word has length 39 [2023-12-24 22:32:08,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:08,602 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 639 transitions. [2023-12-24 22:32:08,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:08,602 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 639 transitions. [2023-12-24 22:32:08,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-24 22:32:08,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:08,602 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:32:08,614 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 [2023-12-24 22:32:08,805 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 [2023-12-24 22:32:08,806 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:08,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:08,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1873529908, now seen corresponding path program 1 times [2023-12-24 22:32:08,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:08,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225313350] [2023-12-24 22:32:08,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:08,807 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 [2023-12-24 22:32:08,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:08,808 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:32:08,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-24 22:32:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:08,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 22:32:08,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:08,933 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:08,933 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:09,037 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:09,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:09,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225313350] [2023-12-24 22:32:09,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225313350] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:09,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:09,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-24 22:32:09,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039096444] [2023-12-24 22:32:09,038 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:09,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-24 22:32:09,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:09,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-24 22:32:09,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-12-24 22:32:09,039 INFO L87 Difference]: Start difference. First operand 479 states and 639 transitions. Second operand has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:09,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:09,723 INFO L93 Difference]: Finished difference Result 1067 states and 1324 transitions. [2023-12-24 22:32:09,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-24 22:32:09,723 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2023-12-24 22:32:09,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:09,725 INFO L225 Difference]: With dead ends: 1067 [2023-12-24 22:32:09,726 INFO L226 Difference]: Without dead ends: 1065 [2023-12-24 22:32:09,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=434, Invalid=972, Unknown=0, NotChecked=0, Total=1406 [2023-12-24 22:32:09,727 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 1332 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:09,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1332 Valid, 964 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-24 22:32:09,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2023-12-24 22:32:09,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 387. [2023-12-24 22:32:09,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 380 states have (on average 1.3210526315789475) internal successors, (502), 386 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:09,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 502 transitions. [2023-12-24 22:32:09,752 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 502 transitions. Word has length 41 [2023-12-24 22:32:09,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:09,753 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 502 transitions. [2023-12-24 22:32:09,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:09,753 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 502 transitions. [2023-12-24 22:32:09,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-24 22:32:09,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:09,753 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-12-24 22:32:09,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-24 22:32:09,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:32:09,956 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:09,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:09,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1184339115, now seen corresponding path program 1 times [2023-12-24 22:32:09,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:09,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517371393] [2023-12-24 22:32:09,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:09,957 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 [2023-12-24 22:32:09,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:09,958 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:32:09,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-24 22:32:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:10,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 22:32:10,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:10,065 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:10,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:10,165 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:10,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:10,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517371393] [2023-12-24 22:32:10,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517371393] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:10,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:10,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-24 22:32:10,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235956840] [2023-12-24 22:32:10,165 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:10,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-24 22:32:10,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:10,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-24 22:32:10,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-12-24 22:32:10,166 INFO L87 Difference]: Start difference. First operand 387 states and 502 transitions. Second operand has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:10,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:10,534 INFO L93 Difference]: Finished difference Result 1537 states and 1997 transitions. [2023-12-24 22:32:10,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-24 22:32:10,534 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 0 states have call successors, (0), 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 41 [2023-12-24 22:32:10,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:10,538 INFO L225 Difference]: With dead ends: 1537 [2023-12-24 22:32:10,538 INFO L226 Difference]: Without dead ends: 1535 [2023-12-24 22:32:10,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2023-12-24 22:32:10,538 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 804 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:10,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 372 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-24 22:32:10,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2023-12-24 22:32:10,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 385. [2023-12-24 22:32:10,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 379 states have (on average 1.2928759894459103) internal successors, (490), 384 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:10,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 490 transitions. [2023-12-24 22:32:10,545 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 490 transitions. Word has length 41 [2023-12-24 22:32:10,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:10,545 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 490 transitions. [2023-12-24 22:32:10,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:10,545 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 490 transitions. [2023-12-24 22:32:10,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-24 22:32:10,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:10,546 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:32:10,568 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 (34)] Forceful destruction successful, exit code 0 [2023-12-24 22:32:10,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:32:10,749 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:10,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:10,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1827150060, now seen corresponding path program 1 times [2023-12-24 22:32:10,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:10,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113789184] [2023-12-24 22:32:10,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:10,750 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 [2023-12-24 22:32:10,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:10,751 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:32:10,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-24 22:32:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:10,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 22:32:10,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:10,856 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:10,856 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:10,961 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:10,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:10,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113789184] [2023-12-24 22:32:10,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113789184] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:10,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:10,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-24 22:32:10,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765017718] [2023-12-24 22:32:10,962 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:10,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-24 22:32:10,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:10,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-24 22:32:10,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-12-24 22:32:10,963 INFO L87 Difference]: Start difference. First operand 385 states and 490 transitions. Second operand has 14 states, 14 states have (on average 5.857142857142857) internal successors, (82), 14 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:11,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:11,505 INFO L93 Difference]: Finished difference Result 1763 states and 2253 transitions. [2023-12-24 22:32:11,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-24 22:32:11,506 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.857142857142857) internal successors, (82), 14 states have internal predecessors, (82), 0 states have call successors, (0), 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 42 [2023-12-24 22:32:11,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:11,509 INFO L225 Difference]: With dead ends: 1763 [2023-12-24 22:32:11,509 INFO L226 Difference]: Without dead ends: 1761 [2023-12-24 22:32:11,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=249, Invalid=507, Unknown=0, NotChecked=0, Total=756 [2023-12-24 22:32:11,510 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 1011 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:11,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 500 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-24 22:32:11,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2023-12-24 22:32:11,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 383. [2023-12-24 22:32:11,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.2698412698412698) internal successors, (480), 382 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:11,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 480 transitions. [2023-12-24 22:32:11,516 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 480 transitions. Word has length 42 [2023-12-24 22:32:11,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:11,516 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 480 transitions. [2023-12-24 22:32:11,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.857142857142857) internal successors, (82), 14 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:11,516 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 480 transitions. [2023-12-24 22:32:11,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-24 22:32:11,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:11,517 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-12-24 22:32:11,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-24 22:32:11,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:32:11,720 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:11,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:11,721 INFO L85 PathProgramCache]: Analyzing trace with hash -504828191, now seen corresponding path program 1 times [2023-12-24 22:32:11,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:11,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722760455] [2023-12-24 22:32:11,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:11,721 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 [2023-12-24 22:32:11,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:11,722 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:32:11,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-24 22:32:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:11,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 22:32:11,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:11,830 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:11,830 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:11,933 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:11,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:11,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722760455] [2023-12-24 22:32:11,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722760455] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:11,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:11,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-24 22:32:11,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850387153] [2023-12-24 22:32:11,934 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:11,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-24 22:32:11,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:11,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-24 22:32:11,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-12-24 22:32:11,935 INFO L87 Difference]: Start difference. First operand 383 states and 480 transitions. Second operand has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:12,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:12,465 INFO L93 Difference]: Finished difference Result 1924 states and 2449 transitions. [2023-12-24 22:32:12,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-24 22:32:12,466 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 0 states have call successors, (0), 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 44 [2023-12-24 22:32:12,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:12,470 INFO L225 Difference]: With dead ends: 1924 [2023-12-24 22:32:12,470 INFO L226 Difference]: Without dead ends: 1922 [2023-12-24 22:32:12,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=249, Invalid=507, Unknown=0, NotChecked=0, Total=756 [2023-12-24 22:32:12,471 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 1058 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:12,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 382 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-24 22:32:12,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2023-12-24 22:32:12,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 254. [2023-12-24 22:32:12,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 250 states have (on average 1.236) internal successors, (309), 253 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:12,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 309 transitions. [2023-12-24 22:32:12,478 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 309 transitions. Word has length 44 [2023-12-24 22:32:12,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:12,478 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 309 transitions. [2023-12-24 22:32:12,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:12,478 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 309 transitions. [2023-12-24 22:32:12,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-24 22:32:12,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:12,479 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2023-12-24 22:32:12,492 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2023-12-24 22:32:12,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:32:12,679 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:12,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:12,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1126811946, now seen corresponding path program 1 times [2023-12-24 22:32:12,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:12,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614338104] [2023-12-24 22:32:12,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:12,680 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 [2023-12-24 22:32:12,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:12,681 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:32:12,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-24 22:32:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:12,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-24 22:32:12,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:12,827 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:12,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:13,057 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:13,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:13,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614338104] [2023-12-24 22:32:13,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614338104] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:13,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:13,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-12-24 22:32:13,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152030959] [2023-12-24 22:32:13,058 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:13,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-24 22:32:13,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:13,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-24 22:32:13,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2023-12-24 22:32:13,059 INFO L87 Difference]: Start difference. First operand 254 states and 309 transitions. Second operand has 20 states, 20 states have (on average 4.85) internal successors, (97), 20 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:14,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:14,695 INFO L93 Difference]: Finished difference Result 1301 states and 1570 transitions. [2023-12-24 22:32:14,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-12-24 22:32:14,695 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.85) internal successors, (97), 20 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-12-24 22:32:14,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:14,698 INFO L225 Difference]: With dead ends: 1301 [2023-12-24 22:32:14,698 INFO L226 Difference]: Without dead ends: 1299 [2023-12-24 22:32:14,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1016, Invalid=2406, Unknown=0, NotChecked=0, Total=3422 [2023-12-24 22:32:14,699 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 2608 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2608 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:14,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2608 Valid, 1525 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-24 22:32:14,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2023-12-24 22:32:14,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 388. [2023-12-24 22:32:14,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 384 states have (on average 1.2578125) internal successors, (483), 387 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:14,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 483 transitions. [2023-12-24 22:32:14,705 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 483 transitions. Word has length 50 [2023-12-24 22:32:14,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:14,705 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 483 transitions. [2023-12-24 22:32:14,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.85) internal successors, (97), 20 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:14,705 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 483 transitions. [2023-12-24 22:32:14,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-24 22:32:14,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:14,705 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2023-12-24 22:32:14,708 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2023-12-24 22:32:14,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:32:14,906 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:14,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:14,906 INFO L85 PathProgramCache]: Analyzing trace with hash -534388355, now seen corresponding path program 1 times [2023-12-24 22:32:14,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:14,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541460974] [2023-12-24 22:32:14,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:14,907 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 [2023-12-24 22:32:14,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:14,908 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:32:14,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-24 22:32:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:14,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-24 22:32:14,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:15,110 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:15,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:15,332 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:15,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:15,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541460974] [2023-12-24 22:32:15,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541460974] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:15,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:15,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2023-12-24 22:32:15,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450077467] [2023-12-24 22:32:15,332 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:15,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-24 22:32:15,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:15,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-24 22:32:15,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2023-12-24 22:32:15,333 INFO L87 Difference]: Start difference. First operand 388 states and 483 transitions. Second operand has 22 states, 22 states have (on average 4.590909090909091) internal successors, (101), 22 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:17,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:17,595 INFO L93 Difference]: Finished difference Result 1360 states and 1632 transitions. [2023-12-24 22:32:17,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-12-24 22:32:17,602 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.590909090909091) internal successors, (101), 22 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-12-24 22:32:17,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:17,620 INFO L225 Difference]: With dead ends: 1360 [2023-12-24 22:32:17,620 INFO L226 Difference]: Without dead ends: 1358 [2023-12-24 22:32:17,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 963 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1264, Invalid=3026, Unknown=0, NotChecked=0, Total=4290 [2023-12-24 22:32:17,621 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 3039 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3039 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:17,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3039 Valid, 1912 Invalid, 2279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 1875 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-24 22:32:17,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2023-12-24 22:32:17,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 496. [2023-12-24 22:32:17,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 492 states have (on average 1.2520325203252032) internal successors, (616), 495 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:17,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 616 transitions. [2023-12-24 22:32:17,641 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 616 transitions. Word has length 52 [2023-12-24 22:32:17,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:17,642 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 616 transitions. [2023-12-24 22:32:17,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.590909090909091) internal successors, (101), 22 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:17,642 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 616 transitions. [2023-12-24 22:32:17,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-24 22:32:17,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:17,642 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-12-24 22:32:17,661 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 (38)] Forceful destruction successful, exit code 0 [2023-12-24 22:32:17,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:32:17,843 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:17,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:17,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1475761696, now seen corresponding path program 1 times [2023-12-24 22:32:17,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:17,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322435393] [2023-12-24 22:32:17,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:17,844 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 [2023-12-24 22:32:17,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:17,845 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:32:17,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-24 22:32:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:17,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-24 22:32:17,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:18,044 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:18,044 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:18,357 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:18,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:18,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322435393] [2023-12-24 22:32:18,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322435393] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:18,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:18,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-12-24 22:32:18,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391394560] [2023-12-24 22:32:18,358 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:18,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-24 22:32:18,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:18,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-24 22:32:18,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2023-12-24 22:32:18,359 INFO L87 Difference]: Start difference. First operand 496 states and 616 transitions. Second operand has 26 states, 26 states have (on average 5.115384615384615) internal successors, (133), 26 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:21,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:21,389 INFO L93 Difference]: Finished difference Result 1258 states and 1515 transitions. [2023-12-24 22:32:21,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-12-24 22:32:21,390 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.115384615384615) internal successors, (133), 26 states have internal predecessors, (133), 0 states have call successors, (0), 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 [2023-12-24 22:32:21,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:21,392 INFO L225 Difference]: With dead ends: 1258 [2023-12-24 22:32:21,392 INFO L226 Difference]: Without dead ends: 1256 [2023-12-24 22:32:21,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1455 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1841, Invalid=4479, Unknown=0, NotChecked=0, Total=6320 [2023-12-24 22:32:21,394 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 2384 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 2575 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 2573 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 2575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:21,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 2573 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 2575 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-24 22:32:21,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2023-12-24 22:32:21,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 651. [2023-12-24 22:32:21,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 647 states have (on average 1.2534775888717156) internal successors, (811), 650 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:21,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 811 transitions. [2023-12-24 22:32:21,404 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 811 transitions. Word has length 68 [2023-12-24 22:32:21,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:21,404 INFO L495 AbstractCegarLoop]: Abstraction has 651 states and 811 transitions. [2023-12-24 22:32:21,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.115384615384615) internal successors, (133), 26 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:21,404 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 811 transitions. [2023-12-24 22:32:21,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-24 22:32:21,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:21,405 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:32:21,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2023-12-24 22:32:21,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:32:21,610 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:21,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:21,610 INFO L85 PathProgramCache]: Analyzing trace with hash -397616883, now seen corresponding path program 1 times [2023-12-24 22:32:21,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:21,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57186061] [2023-12-24 22:32:21,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:21,611 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 [2023-12-24 22:32:21,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:21,612 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:32:21,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-24 22:32:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:21,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-24 22:32:21,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:21,828 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:21,828 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:22,142 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:22,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:22,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57186061] [2023-12-24 22:32:22,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57186061] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:22,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:22,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-12-24 22:32:22,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451805652] [2023-12-24 22:32:22,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:22,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-24 22:32:22,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:22,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-24 22:32:22,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2023-12-24 22:32:22,144 INFO L87 Difference]: Start difference. First operand 651 states and 811 transitions. Second operand has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:25,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:25,741 INFO L93 Difference]: Finished difference Result 1483 states and 1839 transitions. [2023-12-24 22:32:25,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-12-24 22:32:25,741 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-24 22:32:25,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:25,745 INFO L225 Difference]: With dead ends: 1483 [2023-12-24 22:32:25,745 INFO L226 Difference]: Without dead ends: 1481 [2023-12-24 22:32:25,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1452 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1841, Invalid=4479, Unknown=0, NotChecked=0, Total=6320 [2023-12-24 22:32:25,747 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 3834 mSDsluCounter, 2215 mSDsCounter, 0 mSdLazyCounter, 2209 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3834 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 2589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 2209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:25,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3834 Valid, 2401 Invalid, 2589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 2209 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-24 22:32:25,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2023-12-24 22:32:25,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 518. [2023-12-24 22:32:25,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 514 states have (on average 1.2237354085603114) internal successors, (629), 517 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:25,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 629 transitions. [2023-12-24 22:32:25,756 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 629 transitions. Word has length 70 [2023-12-24 22:32:25,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:25,756 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 629 transitions. [2023-12-24 22:32:25,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.269230769230769) internal successors, (137), 26 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:25,757 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 629 transitions. [2023-12-24 22:32:25,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-24 22:32:25,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:25,758 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:32:25,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2023-12-24 22:32:25,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:32:25,964 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:25,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:25,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1355539143, now seen corresponding path program 1 times [2023-12-24 22:32:25,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:25,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463100759] [2023-12-24 22:32:25,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:25,965 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 [2023-12-24 22:32:25,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:25,966 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:32:25,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-24 22:32:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:26,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-24 22:32:26,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:26,466 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:26,466 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:27,209 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:27,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:27,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463100759] [2023-12-24 22:32:27,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463100759] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:27,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:27,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 40 [2023-12-24 22:32:27,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745125412] [2023-12-24 22:32:27,210 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:27,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-24 22:32:27,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:27,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-24 22:32:27,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=402, Invalid=1158, Unknown=0, NotChecked=0, Total=1560 [2023-12-24 22:32:27,211 INFO L87 Difference]: Start difference. First operand 518 states and 629 transitions. Second operand has 40 states, 40 states have (on average 5.225) internal successors, (209), 40 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:36,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:36,583 INFO L93 Difference]: Finished difference Result 2863 states and 3454 transitions. [2023-12-24 22:32:36,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2023-12-24 22:32:36,583 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 5.225) internal successors, (209), 40 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-24 22:32:36,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:36,590 INFO L225 Difference]: With dead ends: 2863 [2023-12-24 22:32:36,590 INFO L226 Difference]: Without dead ends: 2861 [2023-12-24 22:32:36,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4007 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=4711, Invalid=11801, Unknown=0, NotChecked=0, Total=16512 [2023-12-24 22:32:36,595 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 9404 mSDsluCounter, 5499 mSDsCounter, 0 mSdLazyCounter, 5818 mSolverCounterSat, 1155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9404 SdHoareTripleChecker+Valid, 5779 SdHoareTripleChecker+Invalid, 6973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1155 IncrementalHoareTripleChecker+Valid, 5818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:36,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9404 Valid, 5779 Invalid, 6973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1155 Valid, 5818 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-24 22:32:36,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2023-12-24 22:32:36,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 928. [2023-12-24 22:32:36,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 924 states have (on average 1.2564935064935066) internal successors, (1161), 927 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:36,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1161 transitions. [2023-12-24 22:32:36,609 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1161 transitions. Word has length 106 [2023-12-24 22:32:36,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:36,611 INFO L495 AbstractCegarLoop]: Abstraction has 928 states and 1161 transitions. [2023-12-24 22:32:36,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 5.225) internal successors, (209), 40 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:36,612 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1161 transitions. [2023-12-24 22:32:36,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-24 22:32:36,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:36,613 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:32:36,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2023-12-24 22:32:36,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:32:36,819 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:36,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:36,820 INFO L85 PathProgramCache]: Analyzing trace with hash 8505376, now seen corresponding path program 1 times [2023-12-24 22:32:36,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:36,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687273550] [2023-12-24 22:32:36,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 22:32:36,821 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 [2023-12-24 22:32:36,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:36,822 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:32:36,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-24 22:32:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 22:32:36,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-24 22:32:36,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:37,261 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:37,261 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:38,023 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:38,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:38,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687273550] [2023-12-24 22:32:38,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687273550] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:38,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:38,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2023-12-24 22:32:38,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171458838] [2023-12-24 22:32:38,024 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:38,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-12-24 22:32:38,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:38,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-12-24 22:32:38,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=443, Invalid=1279, Unknown=0, NotChecked=0, Total=1722 [2023-12-24 22:32:38,026 INFO L87 Difference]: Start difference. First operand 928 states and 1161 transitions. Second operand has 42 states, 42 states have (on average 5.071428571428571) internal successors, (213), 42 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:48,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:32:48,781 INFO L93 Difference]: Finished difference Result 2792 states and 3346 transitions. [2023-12-24 22:32:48,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-12-24 22:32:48,782 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 5.071428571428571) internal successors, (213), 42 states have internal predecessors, (213), 0 states have call successors, (0), 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 108 [2023-12-24 22:32:48,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:32:48,792 INFO L225 Difference]: With dead ends: 2792 [2023-12-24 22:32:48,793 INFO L226 Difference]: Without dead ends: 2790 [2023-12-24 22:32:48,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4500 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=5229, Invalid=13131, Unknown=0, NotChecked=0, Total=18360 [2023-12-24 22:32:48,798 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 13103 mSDsluCounter, 5760 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 1729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13103 SdHoareTripleChecker+Valid, 6053 SdHoareTripleChecker+Invalid, 8169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1729 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-24 22:32:48,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13103 Valid, 6053 Invalid, 8169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1729 Valid, 6440 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-24 22:32:48,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2023-12-24 22:32:48,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 1036. [2023-12-24 22:32:48,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 1032 states have (on average 1.244186046511628) internal successors, (1284), 1035 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:48,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1284 transitions. [2023-12-24 22:32:48,821 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1284 transitions. Word has length 108 [2023-12-24 22:32:48,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:32:48,821 INFO L495 AbstractCegarLoop]: Abstraction has 1036 states and 1284 transitions. [2023-12-24 22:32:48,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 5.071428571428571) internal successors, (213), 42 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:32:48,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1284 transitions. [2023-12-24 22:32:48,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-24 22:32:48,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:32:48,822 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-12-24 22:32:48,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2023-12-24 22:32:49,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:32:49,028 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:32:49,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:32:49,028 INFO L85 PathProgramCache]: Analyzing trace with hash 329685404, now seen corresponding path program 2 times [2023-12-24 22:32:49,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:32:49,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665231421] [2023-12-24 22:32:49,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-24 22:32:49,029 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 [2023-12-24 22:32:49,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:32:49,030 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:32:49,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2023-12-24 22:32:49,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-24 22:32:49,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 22:32:49,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-24 22:32:49,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:32:49,484 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:49,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:32:50,524 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:32:50,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:32:50,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665231421] [2023-12-24 22:32:50,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665231421] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:32:50,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:32:50,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-12-24 22:32:50,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724831273] [2023-12-24 22:32:50,525 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:32:50,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-12-24 22:32:50,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:32:50,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-12-24 22:32:50,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=627, Invalid=1823, Unknown=0, NotChecked=0, Total=2450 [2023-12-24 22:32:50,526 INFO L87 Difference]: Start difference. First operand 1036 states and 1284 transitions. Second operand has 50 states, 50 states have (on average 5.22) internal successors, (261), 50 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:33:06,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:33:06,459 INFO L93 Difference]: Finished difference Result 2450 states and 2951 transitions. [2023-12-24 22:33:06,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2023-12-24 22:33:06,459 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.22) internal successors, (261), 50 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2023-12-24 22:33:06,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:33:06,463 INFO L225 Difference]: With dead ends: 2450 [2023-12-24 22:33:06,463 INFO L226 Difference]: Without dead ends: 2448 [2023-12-24 22:33:06,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6581 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=7571, Invalid=19161, Unknown=0, NotChecked=0, Total=26732 [2023-12-24 22:33:06,466 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 8913 mSDsluCounter, 9429 mSDsCounter, 0 mSdLazyCounter, 10442 mSolverCounterSat, 1293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8913 SdHoareTripleChecker+Valid, 9846 SdHoareTripleChecker+Invalid, 11735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1293 IncrementalHoareTripleChecker+Valid, 10442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-24 22:33:06,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8913 Valid, 9846 Invalid, 11735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1293 Valid, 10442 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-24 22:33:06,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states. [2023-12-24 22:33:06,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 1411. [2023-12-24 22:33:06,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1411 states, 1407 states have (on average 1.2473347547974414) internal successors, (1755), 1410 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:33:06,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 1755 transitions. [2023-12-24 22:33:06,480 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 1755 transitions. Word has length 132 [2023-12-24 22:33:06,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:33:06,481 INFO L495 AbstractCegarLoop]: Abstraction has 1411 states and 1755 transitions. [2023-12-24 22:33:06,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.22) internal successors, (261), 50 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:33:06,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 1755 transitions. [2023-12-24 22:33:06,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-24 22:33:06,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:33:06,482 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 22:33:06,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2023-12-24 22:33:06,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:33:06,688 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:33:06,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:33:06,689 INFO L85 PathProgramCache]: Analyzing trace with hash -529741367, now seen corresponding path program 2 times [2023-12-24 22:33:06,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:33:06,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1766100309] [2023-12-24 22:33:06,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-24 22:33:06,690 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 [2023-12-24 22:33:06,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:33:06,691 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:33:06,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2023-12-24 22:33:06,854 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-24 22:33:06,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 22:33:06,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-24 22:33:06,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:33:07,205 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:33:07,206 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:33:08,277 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 22:33:08,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:33:08,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1766100309] [2023-12-24 22:33:08,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1766100309] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:33:08,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:33:08,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-12-24 22:33:08,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439836152] [2023-12-24 22:33:08,278 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:33:08,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-12-24 22:33:08,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:33:08,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-12-24 22:33:08,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=627, Invalid=1823, Unknown=0, NotChecked=0, Total=2450 [2023-12-24 22:33:08,279 INFO L87 Difference]: Start difference. First operand 1411 states and 1755 transitions. Second operand has 50 states, 50 states have (on average 5.3) internal successors, (265), 50 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:33:23,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:33:23,942 INFO L93 Difference]: Finished difference Result 3003 states and 3727 transitions. [2023-12-24 22:33:23,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2023-12-24 22:33:23,942 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.3) internal successors, (265), 50 states have internal predecessors, (265), 0 states have call successors, (0), 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 134 [2023-12-24 22:33:23,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:33:23,946 INFO L225 Difference]: With dead ends: 3003 [2023-12-24 22:33:23,946 INFO L226 Difference]: Without dead ends: 3001 [2023-12-24 22:33:23,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6598 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=7571, Invalid=19161, Unknown=0, NotChecked=0, Total=26732 [2023-12-24 22:33:23,951 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 14966 mSDsluCounter, 7881 mSDsCounter, 0 mSdLazyCounter, 8487 mSolverCounterSat, 1700 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14966 SdHoareTripleChecker+Valid, 8223 SdHoareTripleChecker+Invalid, 10187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1700 IncrementalHoareTripleChecker+Valid, 8487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-24 22:33:23,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14966 Valid, 8223 Invalid, 10187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1700 Valid, 8487 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-24 22:33:23,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3001 states. [2023-12-24 22:33:23,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3001 to 1098. [2023-12-24 22:33:23,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 1094 states have (on average 1.2148080438756856) internal successors, (1329), 1097 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:33:23,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1329 transitions. [2023-12-24 22:33:23,963 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1329 transitions. Word has length 134 [2023-12-24 22:33:23,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:33:23,964 INFO L495 AbstractCegarLoop]: Abstraction has 1098 states and 1329 transitions. [2023-12-24 22:33:23,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.3) internal successors, (265), 50 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:33:23,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1329 transitions. [2023-12-24 22:33:23,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-24 22:33:23,965 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:33:23,966 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 1, 1, 1, 1, 1] [2023-12-24 22:33:23,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2023-12-24 22:33:24,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:33:24,173 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:33:24,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:33:24,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1940679764, now seen corresponding path program 2 times [2023-12-24 22:33:24,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:33:24,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805951204] [2023-12-24 22:33:24,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-24 22:33:24,174 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 [2023-12-24 22:33:24,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:33:24,175 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:33:24,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-12-24 22:33:24,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-24 22:33:24,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 22:33:24,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-24 22:33:24,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:33:24,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2023-12-24 22:33:24,716 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:33:24,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2023-12-24 22:33:24,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:33:24,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805951204] [2023-12-24 22:33:24,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805951204] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 22:33:24,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 22:33:24,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2023-12-24 22:33:24,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623426496] [2023-12-24 22:33:24,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 22:33:24,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 22:33:24,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:33:24,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 22:33:24,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-24 22:33:24,820 INFO L87 Difference]: Start difference. First operand 1098 states and 1329 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:33:25,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:33:25,011 INFO L93 Difference]: Finished difference Result 2481 states and 3051 transitions. [2023-12-24 22:33:25,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 22:33:25,012 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2023-12-24 22:33:25,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:33:25,018 INFO L225 Difference]: With dead ends: 2481 [2023-12-24 22:33:25,018 INFO L226 Difference]: Without dead ends: 2479 [2023-12-24 22:33:25,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-12-24 22:33:25,019 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 89 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 22:33:25,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 114 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 22:33:25,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2479 states. [2023-12-24 22:33:25,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2479 to 965. [2023-12-24 22:33:25,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 962 states have (on average 1.2047817047817049) internal successors, (1159), 964 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:33:25,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1159 transitions. [2023-12-24 22:33:25,033 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1159 transitions. Word has length 210 [2023-12-24 22:33:25,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:33:25,033 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1159 transitions. [2023-12-24 22:33:25,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:33:25,034 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1159 transitions. [2023-12-24 22:33:25,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-24 22:33:25,035 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:33:25,035 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1] [2023-12-24 22:33:25,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2023-12-24 22:33:25,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:33:25,237 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:33:25,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:33:25,238 INFO L85 PathProgramCache]: Analyzing trace with hash -977313581, now seen corresponding path program 2 times [2023-12-24 22:33:25,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:33:25,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660652396] [2023-12-24 22:33:25,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-24 22:33:25,238 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 [2023-12-24 22:33:25,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:33:25,240 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:33:25,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2023-12-24 22:33:25,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-24 22:33:25,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 22:33:25,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-24 22:33:25,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:33:25,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2023-12-24 22:33:25,836 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:33:27,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2023-12-24 22:33:27,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:33:27,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660652396] [2023-12-24 22:33:27,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [660652396] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:33:27,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:33:27,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-24 22:33:27,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976576079] [2023-12-24 22:33:27,244 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:33:27,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-24 22:33:27,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:33:27,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-24 22:33:27,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-12-24 22:33:27,245 INFO L87 Difference]: Start difference. First operand 965 states and 1159 transitions. Second operand has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 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) [2023-12-24 22:33:29,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:33:29,509 INFO L93 Difference]: Finished difference Result 3213 states and 3916 transitions. [2023-12-24 22:33:29,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-24 22:33:29,509 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 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 212 [2023-12-24 22:33:29,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:33:29,512 INFO L225 Difference]: With dead ends: 3213 [2023-12-24 22:33:29,512 INFO L226 Difference]: Without dead ends: 3209 [2023-12-24 22:33:29,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=437, Invalid=1045, Unknown=0, NotChecked=0, Total=1482 [2023-12-24 22:33:29,513 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 193 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-24 22:33:29,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 341 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-24 22:33:29,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3209 states. [2023-12-24 22:33:29,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3209 to 957. [2023-12-24 22:33:29,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 956 states have (on average 1.198744769874477) internal successors, (1146), 956 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:33:29,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1146 transitions. [2023-12-24 22:33:29,530 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1146 transitions. Word has length 212 [2023-12-24 22:33:29,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:33:29,530 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1146 transitions. [2023-12-24 22:33:29,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 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) [2023-12-24 22:33:29,530 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1146 transitions. [2023-12-24 22:33:29,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-24 22:33:29,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 22:33:29,532 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-12-24 22:33:29,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2023-12-24 22:33:29,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:33:29,735 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-12-24 22:33:29,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 22:33:29,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1496524524, now seen corresponding path program 3 times [2023-12-24 22:33:29,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 22:33:29,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059178031] [2023-12-24 22:33:29,736 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-24 22:33:29,736 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 [2023-12-24 22:33:29,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 22:33:29,737 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 22:33:29,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-12-24 22:33:29,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-24 22:33:29,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 22:33:29,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-24 22:33:29,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 22:33:31,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1778 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 1528 trivial. 0 not checked. [2023-12-24 22:33:31,116 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 22:33:33,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1778 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 1528 trivial. 0 not checked. [2023-12-24 22:33:33,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 22:33:33,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059178031] [2023-12-24 22:33:33,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059178031] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 22:33:33,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 22:33:33,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-12-24 22:33:33,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006842581] [2023-12-24 22:33:33,637 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 22:33:33,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-24 22:33:33,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 22:33:33,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-24 22:33:33,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2023-12-24 22:33:33,638 INFO L87 Difference]: Start difference. First operand 957 states and 1146 transitions. Second operand has 20 states, 20 states have (on average 4.8) internal successors, (96), 20 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) [2023-12-24 22:33:38,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 22:33:38,547 INFO L93 Difference]: Finished difference Result 1374 states and 1714 transitions. [2023-12-24 22:33:38,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-24 22:33:38,548 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.8) internal successors, (96), 20 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 260 [2023-12-24 22:33:38,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 22:33:38,549 INFO L225 Difference]: With dead ends: 1374 [2023-12-24 22:33:38,549 INFO L226 Difference]: Without dead ends: 0 [2023-12-24 22:33:38,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=879, Invalid=2201, Unknown=0, NotChecked=0, Total=3080 [2023-12-24 22:33:38,550 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 231 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-24 22:33:38,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 391 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-24 22:33:38,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-24 22:33:38,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-24 22:33:38,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 22:33:38,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-24 22:33:38,551 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 260 [2023-12-24 22:33:38,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 22:33:38,551 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-24 22:33:38,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.8) internal successors, (96), 20 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) [2023-12-24 22:33:38,551 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-24 22:33:38,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-24 22:33:38,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 16 remaining) [2023-12-24 22:33:38,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (14 of 16 remaining) [2023-12-24 22:33:38,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (13 of 16 remaining) [2023-12-24 22:33:38,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (12 of 16 remaining) [2023-12-24 22:33:38,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (11 of 16 remaining) [2023-12-24 22:33:38,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (10 of 16 remaining) [2023-12-24 22:33:38,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (9 of 16 remaining) [2023-12-24 22:33:38,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (8 of 16 remaining) [2023-12-24 22:33:38,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (7 of 16 remaining) [2023-12-24 22:33:38,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (6 of 16 remaining) [2023-12-24 22:33:38,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (5 of 16 remaining) [2023-12-24 22:33:38,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (4 of 16 remaining) [2023-12-24 22:33:38,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (3 of 16 remaining) [2023-12-24 22:33:38,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (2 of 16 remaining) [2023-12-24 22:33:38,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (1 of 16 remaining) [2023-12-24 22:33:38,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (0 of 16 remaining) [2023-12-24 22:33:38,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2023-12-24 22:33:38,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 22:33:38,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-24 22:33:38,760 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2023-12-24 22:33:38,760 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2023-12-24 22:33:38,760 INFO L899 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2023-12-24 22:33:38,760 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2023-12-24 22:33:38,760 INFO L899 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2023-12-24 22:33:38,760 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 13 313) no Hoare annotation was computed. [2023-12-24 22:33:38,760 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2023-12-24 22:33:38,760 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2023-12-24 22:33:38,760 INFO L899 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2023-12-24 22:33:38,760 INFO L899 garLoopResultBuilder]: For program point $Ultimate##6(lines 34 305) no Hoare annotation was computed. [2023-12-24 22:33:38,760 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2023-12-24 22:33:38,760 INFO L899 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2023-12-24 22:33:38,760 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2023-12-24 22:33:38,761 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2023-12-24 22:33:38,761 INFO L899 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2023-12-24 22:33:38,761 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2023-12-24 22:33:38,761 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2023-12-24 22:33:38,761 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2023-12-24 22:33:38,761 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2023-12-24 22:33:38,761 INFO L899 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2023-12-24 22:33:38,761 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2023-12-24 22:33:38,761 INFO L899 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2023-12-24 22:33:38,761 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2023-12-24 22:33:38,761 INFO L899 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2023-12-24 22:33:38,761 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-24 22:33:38,761 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2023-12-24 22:33:38,761 INFO L899 garLoopResultBuilder]: For program point $Ultimate##4(lines 30 311) no Hoare annotation was computed. [2023-12-24 22:33:38,761 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2023-12-24 22:33:38,762 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-24 22:33:38,763 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2023-12-24 22:33:38,763 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2023-12-24 22:33:38,763 INFO L899 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2023-12-24 22:33:38,763 INFO L899 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2023-12-24 22:33:38,763 INFO L899 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2023-12-24 22:33:38,763 INFO L899 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2023-12-24 22:33:38,763 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2023-12-24 22:33:38,763 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2023-12-24 22:33:38,763 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2023-12-24 22:33:38,763 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2023-12-24 22:33:38,763 INFO L899 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2023-12-24 22:33:38,763 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2023-12-24 22:33:38,763 INFO L899 garLoopResultBuilder]: For program point L68(lines 38 294) no Hoare annotation was computed. [2023-12-24 22:33:38,765 INFO L445 BasicCegarLoop]: Path program histogram: [3, 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] [2023-12-24 22:33:38,767 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 22:33:38,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 10:33:38 BoogieIcfgContainer [2023-12-24 22:33:38,769 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 22:33:38,769 INFO L158 Benchmark]: Toolchain (without parser) took 109217.55ms. Allocated memory was 243.3MB in the beginning and 292.6MB in the end (delta: 49.3MB). Free memory was 204.1MB in the beginning and 240.0MB in the end (delta: -35.9MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. [2023-12-24 22:33:38,769 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 195.0MB. Free memory is still 145.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 22:33:38,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.50ms. Allocated memory is still 243.3MB. Free memory was 203.7MB in the beginning and 185.5MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-24 22:33:38,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.02ms. Allocated memory is still 243.3MB. Free memory was 185.5MB in the beginning and 183.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 22:33:38,770 INFO L158 Benchmark]: Boogie Preprocessor took 44.97ms. Allocated memory is still 243.3MB. Free memory was 183.4MB in the beginning and 181.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 22:33:38,770 INFO L158 Benchmark]: RCFGBuilder took 341.82ms. Allocated memory is still 243.3MB. Free memory was 181.3MB in the beginning and 164.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-24 22:33:38,770 INFO L158 Benchmark]: TraceAbstraction took 108514.17ms. Allocated memory was 243.3MB in the beginning and 292.6MB in the end (delta: 49.3MB). Free memory was 163.9MB in the beginning and 240.0MB in the end (delta: -76.1MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 22:33:38,776 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 195.0MB. Free memory is still 145.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 257.50ms. Allocated memory is still 243.3MB. Free memory was 203.7MB in the beginning and 185.5MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.02ms. Allocated memory is still 243.3MB. Free memory was 185.5MB in the beginning and 183.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.97ms. Allocated memory is still 243.3MB. Free memory was 183.4MB in the beginning and 181.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 341.82ms. Allocated memory is still 243.3MB. Free memory was 181.3MB in the beginning and 164.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 108514.17ms. Allocated memory was 243.3MB in the beginning and 292.6MB in the end (delta: 49.3MB). Free memory was 163.9MB in the beginning and 240.0MB in the end (delta: -76.1MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 47]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 59]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 76]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 88]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 100]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 112]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 141]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 153]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 165]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 177]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 193]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 205]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 217]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 229]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 245]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 257]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 58 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 108.5s, OverallIterations: 46, TraceHistogramMax: 17, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 79.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72316 SdHoareTripleChecker+Valid, 28.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72316 mSDsluCounter, 52434 SdHoareTripleChecker+Invalid, 24.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46812 mSDsCounter, 7982 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47365 IncrementalHoareTripleChecker+Invalid, 55347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7982 mSolverCounterUnsat, 5622 mSDtfsCounter, 47365 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4932 GetRequests, 3501 SyntacticMatches, 0 SemanticMatches, 1431 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28708 ImplicationChecksByTransitivity, 54.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1411occurred in iteration=42, InterpolantAutomatonStates: 1274, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 46 MinimizatonAttempts, 23818 StatesRemovedByMinimization, 45 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FormulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 16.8s InterpolantComputationTime, 2154 NumberOfCodeBlocks, 1538 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 4018 ConstructedInterpolants, 469 QuantifiedInterpolants, 25384 SizeOfPredicates, 141 NumberOfNonLiveVariables, 4674 ConjunctsInSsa, 406 ConjunctsInUnsatCore, 76 InterpolantComputations, 18 PerfectInterpolantSequences, 7526/12038 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-24 22:33:38,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...