/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/combinations/pc_sfifo_3.cil+token_ring.14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 02:42:57,755 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 02:42:57,826 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 02:42:57,830 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 02:42:57,831 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 02:42:57,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 02:42:57,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 02:42:57,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 02:42:57,854 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 02:42:57,857 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 02:42:57,858 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 02:42:57,858 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 02:42:57,859 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 02:42:57,859 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 02:42:57,860 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 02:42:57,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 02:42:57,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 02:42:57,861 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 02:42:57,861 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 02:42:57,862 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 02:42:57,862 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 02:42:57,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 02:42:57,862 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 02:42:57,863 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 02:42:57,863 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 02:42:57,863 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 02:42:57,863 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 02:42:57,863 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 02:42:57,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 02:42:57,864 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 02:42:57,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 02:42:57,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 02:42:57,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 02:42:57,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 02:42:57,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:42:57,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 02:42:57,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 02:42:57,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 02:42:57,866 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 02:42:57,866 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 02:42:57,866 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 02:42:57,867 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 02:42:57,867 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 02:42:57,867 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 02:42:57,867 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 02:42:57,867 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 02:42:57,867 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 02:42:58,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 02:42:58,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 02:42:58,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 02:42:58,071 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 02:42:58,072 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 02:42:58,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.14.cil.c [2023-12-22 02:42:59,198 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 02:42:59,427 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 02:42:59,427 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.14.cil.c [2023-12-22 02:42:59,443 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca56c57af/a5a9be1f5d4f45bba9842e10f697a22e/FLAG5226891c5 [2023-12-22 02:42:59,453 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca56c57af/a5a9be1f5d4f45bba9842e10f697a22e [2023-12-22 02:42:59,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 02:42:59,456 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 02:42:59,457 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 02:42:59,457 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 02:42:59,460 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 02:42:59,461 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:42:59" (1/1) ... [2023-12-22 02:42:59,461 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@361631ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:59, skipping insertion in model container [2023-12-22 02:42:59,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:42:59" (1/1) ... [2023-12-22 02:42:59,509 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 02:42:59,644 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.14.cil.c[911,924] [2023-12-22 02:42:59,731 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.14.cil.c[8416,8429] [2023-12-22 02:42:59,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:42:59,844 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 02:42:59,854 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.14.cil.c[911,924] [2023-12-22 02:42:59,865 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.14.cil.c[8416,8429] [2023-12-22 02:42:59,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:42:59,927 INFO L206 MainTranslator]: Completed translation [2023-12-22 02:42:59,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:59 WrapperNode [2023-12-22 02:42:59,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 02:42:59,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 02:42:59,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 02:42:59,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 02:42:59,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:59" (1/1) ... [2023-12-22 02:42:59,947 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:59" (1/1) ... [2023-12-22 02:43:00,003 INFO L138 Inliner]: procedures = 80, calls = 98, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 1069 [2023-12-22 02:43:00,003 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 02:43:00,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 02:43:00,012 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 02:43:00,012 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 02:43:00,022 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:59" (1/1) ... [2023-12-22 02:43:00,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:59" (1/1) ... [2023-12-22 02:43:00,035 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:59" (1/1) ... [2023-12-22 02:43:00,048 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]. [2023-12-22 02:43:00,048 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:59" (1/1) ... [2023-12-22 02:43:00,049 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:59" (1/1) ... [2023-12-22 02:43:00,060 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:59" (1/1) ... [2023-12-22 02:43:00,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:59" (1/1) ... [2023-12-22 02:43:00,072 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:59" (1/1) ... [2023-12-22 02:43:00,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:59" (1/1) ... [2023-12-22 02:43:00,079 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 02:43:00,080 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 02:43:00,080 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 02:43:00,080 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 02:43:00,081 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:59" (1/1) ... [2023-12-22 02:43:00,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:43:00,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 02:43:00,104 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) [2023-12-22 02:43:00,124 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 [2023-12-22 02:43:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 02:43:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-22 02:43:00,143 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-22 02:43:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-22 02:43:00,143 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-22 02:43:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-22 02:43:00,143 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-22 02:43:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-22 02:43:00,144 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-22 02:43:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-22 02:43:00,144 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-22 02:43:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-22 02:43:00,144 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-22 02:43:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-22 02:43:00,144 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-22 02:43:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-22 02:43:00,144 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-22 02:43:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 02:43:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-22 02:43:00,144 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-22 02:43:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-22 02:43:00,144 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-22 02:43:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-22 02:43:00,145 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-22 02:43:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-22 02:43:00,145 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-22 02:43:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-22 02:43:00,145 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-22 02:43:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 02:43:00,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 02:43:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-22 02:43:00,145 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-22 02:43:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2023-12-22 02:43:00,145 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2023-12-22 02:43:00,301 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 02:43:00,302 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 02:43:01,046 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1bv32 == ~q_free~0); [2023-12-22 02:43:01,047 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1bv32 == ~q_free~0;~c_dr_st~0 := 2bv32;~c_dr_pc~0 := 2bv32;~a_t~0 := do_read_c_~a~0#1; [2023-12-22 02:43:01,110 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 02:43:01,177 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 02:43:01,177 INFO L309 CfgBuilder]: Removed 19 assume(true) statements. [2023-12-22 02:43:01,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:43:01 BoogieIcfgContainer [2023-12-22 02:43:01,178 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 02:43:01,180 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 02:43:01,180 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 02:43:01,183 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 02:43:01,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:42:59" (1/3) ... [2023-12-22 02:43:01,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ab5041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:43:01, skipping insertion in model container [2023-12-22 02:43:01,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:59" (2/3) ... [2023-12-22 02:43:01,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ab5041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:43:01, skipping insertion in model container [2023-12-22 02:43:01,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:43:01" (3/3) ... [2023-12-22 02:43:01,185 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.14.cil.c [2023-12-22 02:43:01,196 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 02:43:01,196 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 02:43:01,268 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 02:43:01,272 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;@4cf21d4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 02:43:01,273 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 02:43:01,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 458 states, 396 states have (on average 1.7171717171717171) internal successors, (680), 404 states have internal predecessors, (680), 44 states have call successors, (44), 15 states have call predecessors, (44), 15 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-22 02:43:01,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-22 02:43:01,287 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:01,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:01,289 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:01,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:01,293 INFO L85 PathProgramCache]: Analyzing trace with hash -396566493, now seen corresponding path program 1 times [2023-12-22 02:43:01,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:01,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514144493] [2023-12-22 02:43:01,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:01,303 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 [2023-12-22 02:43:01,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:01,306 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) [2023-12-22 02:43:01,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 02:43:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:01,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:01,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:01,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:01,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:01,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:01,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514144493] [2023-12-22 02:43:01,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514144493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:01,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:01,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:01,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243438379] [2023-12-22 02:43:01,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:01,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:01,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:01,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:01,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:01,544 INFO L87 Difference]: Start difference. First operand has 458 states, 396 states have (on average 1.7171717171717171) internal successors, (680), 404 states have internal predecessors, (680), 44 states have call successors, (44), 15 states have call predecessors, (44), 15 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:43:01,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:01,733 INFO L93 Difference]: Finished difference Result 891 states and 1491 transitions. [2023-12-22 02:43:01,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:01,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2023-12-22 02:43:01,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:01,753 INFO L225 Difference]: With dead ends: 891 [2023-12-22 02:43:01,753 INFO L226 Difference]: Without dead ends: 452 [2023-12-22 02:43:01,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:01,763 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 141 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:01,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1195 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:01,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2023-12-22 02:43:01,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2023-12-22 02:43:01,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 393 states have (on average 1.61323155216285) internal successors, (634), 398 states have internal predecessors, (634), 44 states have call successors, (44), 15 states have call predecessors, (44), 13 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-22 02:43:01,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 718 transitions. [2023-12-22 02:43:01,814 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 718 transitions. Word has length 57 [2023-12-22 02:43:01,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:01,815 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 718 transitions. [2023-12-22 02:43:01,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:43:01,816 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 718 transitions. [2023-12-22 02:43:01,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-22 02:43:01,817 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:01,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:01,839 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 [2023-12-22 02:43:02,022 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 [2023-12-22 02:43:02,023 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:02,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:02,024 INFO L85 PathProgramCache]: Analyzing trace with hash -381047775, now seen corresponding path program 1 times [2023-12-22 02:43:02,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:02,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794301482] [2023-12-22 02:43:02,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:02,026 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:02,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:02,027 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) [2023-12-22 02:43:02,055 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 [2023-12-22 02:43:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:02,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 02:43:02,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:02,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:02,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:02,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:02,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794301482] [2023-12-22 02:43:02,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1794301482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:02,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:02,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:43:02,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716878932] [2023-12-22 02:43:02,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:02,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:02,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:02,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:02,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:02,166 INFO L87 Difference]: Start difference. First operand 452 states and 718 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:43:03,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:03,116 INFO L93 Difference]: Finished difference Result 654 states and 1018 transitions. [2023-12-22 02:43:03,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:43:03,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2023-12-22 02:43:03,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:03,120 INFO L225 Difference]: With dead ends: 654 [2023-12-22 02:43:03,121 INFO L226 Difference]: Without dead ends: 560 [2023-12-22 02:43:03,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:03,122 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 483 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:03,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 1335 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 02:43:03,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-12-22 02:43:03,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 553. [2023-12-22 02:43:03,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 472 states have (on average 1.5868644067796611) internal successors, (749), 479 states have internal predecessors, (749), 57 states have call successors, (57), 22 states have call predecessors, (57), 22 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2023-12-22 02:43:03,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 864 transitions. [2023-12-22 02:43:03,152 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 864 transitions. Word has length 57 [2023-12-22 02:43:03,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:03,153 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 864 transitions. [2023-12-22 02:43:03,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:43:03,153 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 864 transitions. [2023-12-22 02:43:03,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-22 02:43:03,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:03,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:03,161 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 [2023-12-22 02:43:03,361 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 [2023-12-22 02:43:03,362 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:03,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:03,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1969926753, now seen corresponding path program 1 times [2023-12-22 02:43:03,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:03,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194698481] [2023-12-22 02:43:03,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:03,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:03,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:03,374 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) [2023-12-22 02:43:03,375 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 [2023-12-22 02:43:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:03,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:43:03,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:03,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:03,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:03,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:03,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194698481] [2023-12-22 02:43:03,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194698481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:03,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:03,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:43:03,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185936523] [2023-12-22 02:43:03,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:03,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:03,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:03,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:03,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:03,539 INFO L87 Difference]: Start difference. First operand 553 states and 864 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:43:04,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:04,419 INFO L93 Difference]: Finished difference Result 964 states and 1477 transitions. [2023-12-22 02:43:04,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:43:04,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2023-12-22 02:43:04,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:04,423 INFO L225 Difference]: With dead ends: 964 [2023-12-22 02:43:04,423 INFO L226 Difference]: Without dead ends: 774 [2023-12-22 02:43:04,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:04,425 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 475 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:04,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1339 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 02:43:04,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2023-12-22 02:43:04,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 766. [2023-12-22 02:43:04,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 637 states have (on average 1.543171114599686) internal successors, (983), 652 states have internal predecessors, (983), 83 states have call successors, (83), 36 states have call predecessors, (83), 44 states have return successors, (104), 82 states have call predecessors, (104), 79 states have call successors, (104) [2023-12-22 02:43:04,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1170 transitions. [2023-12-22 02:43:04,460 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1170 transitions. Word has length 57 [2023-12-22 02:43:04,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:04,460 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 1170 transitions. [2023-12-22 02:43:04,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:43:04,460 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1170 transitions. [2023-12-22 02:43:04,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-22 02:43:04,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:04,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:04,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:04,666 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 [2023-12-22 02:43:04,667 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:04,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:04,667 INFO L85 PathProgramCache]: Analyzing trace with hash 2045764641, now seen corresponding path program 1 times [2023-12-22 02:43:04,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:04,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202965570] [2023-12-22 02:43:04,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:04,668 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 [2023-12-22 02:43:04,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:04,669 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) [2023-12-22 02:43:04,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 02:43:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:04,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:04,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:04,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:04,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:04,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:04,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202965570] [2023-12-22 02:43:04,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1202965570] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:04,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:04,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:04,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158705970] [2023-12-22 02:43:04,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:04,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:04,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:04,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:04,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:04,795 INFO L87 Difference]: Start difference. First operand 766 states and 1170 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:43:04,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:04,902 INFO L93 Difference]: Finished difference Result 1512 states and 2237 transitions. [2023-12-22 02:43:04,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:04,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2023-12-22 02:43:04,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:04,906 INFO L225 Difference]: With dead ends: 1512 [2023-12-22 02:43:04,906 INFO L226 Difference]: Without dead ends: 1123 [2023-12-22 02:43:04,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:04,908 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 683 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:04,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 800 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:04,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2023-12-22 02:43:04,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1115. [2023-12-22 02:43:04,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 908 states have (on average 1.501101321585903) internal successors, (1363), 933 states have internal predecessors, (1363), 123 states have call successors, (123), 64 states have call predecessors, (123), 82 states have return successors, (161), 122 states have call predecessors, (161), 119 states have call successors, (161) [2023-12-22 02:43:04,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1647 transitions. [2023-12-22 02:43:04,957 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1647 transitions. Word has length 57 [2023-12-22 02:43:04,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:04,957 INFO L495 AbstractCegarLoop]: Abstraction has 1115 states and 1647 transitions. [2023-12-22 02:43:04,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:43:04,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1647 transitions. [2023-12-22 02:43:04,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:43:04,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:04,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:04,978 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 [2023-12-22 02:43:05,162 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 [2023-12-22 02:43:05,163 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:05,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:05,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1559799900, now seen corresponding path program 1 times [2023-12-22 02:43:05,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:05,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043627508] [2023-12-22 02:43:05,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:05,164 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 [2023-12-22 02:43:05,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:05,166 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) [2023-12-22 02:43:05,170 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 [2023-12-22 02:43:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:05,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:43:05,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:05,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:05,290 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:05,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:05,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043627508] [2023-12-22 02:43:05,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043627508] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:05,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:05,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:43:05,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032771323] [2023-12-22 02:43:05,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:05,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:43:05,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:05,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:43:05,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:05,292 INFO L87 Difference]: Start difference. First operand 1115 states and 1647 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:43:05,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:05,474 INFO L93 Difference]: Finished difference Result 1889 states and 2751 transitions. [2023-12-22 02:43:05,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:43:05,474 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-22 02:43:05,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:05,478 INFO L225 Difference]: With dead ends: 1889 [2023-12-22 02:43:05,478 INFO L226 Difference]: Without dead ends: 1151 [2023-12-22 02:43:05,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:43:05,480 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 6 mSDsluCounter, 2646 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3309 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:05,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3309 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:05,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2023-12-22 02:43:05,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1131. [2023-12-22 02:43:05,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 920 states have (on average 1.4902173913043477) internal successors, (1371), 945 states have internal predecessors, (1371), 123 states have call successors, (123), 64 states have call predecessors, (123), 86 states have return successors, (165), 126 states have call predecessors, (165), 119 states have call successors, (165) [2023-12-22 02:43:05,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1659 transitions. [2023-12-22 02:43:05,548 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1659 transitions. Word has length 58 [2023-12-22 02:43:05,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:05,549 INFO L495 AbstractCegarLoop]: Abstraction has 1131 states and 1659 transitions. [2023-12-22 02:43:05,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:43:05,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1659 transitions. [2023-12-22 02:43:05,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:43:05,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:05,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:05,555 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 [2023-12-22 02:43:05,753 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 [2023-12-22 02:43:05,753 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:05,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:05,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1487413342, now seen corresponding path program 1 times [2023-12-22 02:43:05,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:05,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491044060] [2023-12-22 02:43:05,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:05,754 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 [2023-12-22 02:43:05,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:05,755 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) [2023-12-22 02:43:05,757 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 [2023-12-22 02:43:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:05,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:05,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:05,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:05,874 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:05,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:05,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491044060] [2023-12-22 02:43:05,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491044060] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:05,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:05,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:05,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993275985] [2023-12-22 02:43:05,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:05,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:05,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:05,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:05,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:05,876 INFO L87 Difference]: Start difference. First operand 1131 states and 1659 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:43:06,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:06,005 INFO L93 Difference]: Finished difference Result 2583 states and 3675 transitions. [2023-12-22 02:43:06,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:06,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-22 02:43:06,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:06,012 INFO L225 Difference]: With dead ends: 2583 [2023-12-22 02:43:06,013 INFO L226 Difference]: Without dead ends: 1829 [2023-12-22 02:43:06,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:06,015 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 672 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:06,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 776 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:06,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2023-12-22 02:43:06,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1821. [2023-12-22 02:43:06,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1450 states have (on average 1.4379310344827587) internal successors, (2085), 1495 states have internal predecessors, (2085), 203 states have call successors, (203), 120 states have call predecessors, (203), 166 states have return successors, (283), 210 states have call predecessors, (283), 199 states have call successors, (283) [2023-12-22 02:43:06,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2571 transitions. [2023-12-22 02:43:06,114 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2571 transitions. Word has length 58 [2023-12-22 02:43:06,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:06,115 INFO L495 AbstractCegarLoop]: Abstraction has 1821 states and 2571 transitions. [2023-12-22 02:43:06,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:43:06,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2571 transitions. [2023-12-22 02:43:06,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-22 02:43:06,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:06,117 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:06,140 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 [2023-12-22 02:43:06,344 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 [2023-12-22 02:43:06,344 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:06,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:06,344 INFO L85 PathProgramCache]: Analyzing trace with hash -977643450, now seen corresponding path program 1 times [2023-12-22 02:43:06,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:06,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217999402] [2023-12-22 02:43:06,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:06,345 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 [2023-12-22 02:43:06,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:06,346 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) [2023-12-22 02:43:06,379 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 [2023-12-22 02:43:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:06,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:43:06,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:06,472 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-22 02:43:06,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:06,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:06,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217999402] [2023-12-22 02:43:06,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217999402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:06,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:06,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:43:06,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330671519] [2023-12-22 02:43:06,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:06,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:43:06,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:06,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:43:06,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:06,474 INFO L87 Difference]: Start difference. First operand 1821 states and 2571 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:43:06,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:06,693 INFO L93 Difference]: Finished difference Result 3313 states and 4627 transitions. [2023-12-22 02:43:06,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:43:06,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2023-12-22 02:43:06,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:06,700 INFO L225 Difference]: With dead ends: 3313 [2023-12-22 02:43:06,700 INFO L226 Difference]: Without dead ends: 1869 [2023-12-22 02:43:06,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:43:06,703 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 3 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3304 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:06,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3304 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:06,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1869 states. [2023-12-22 02:43:06,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1869 to 1853. [2023-12-22 02:43:06,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1474 states have (on average 1.4253731343283582) internal successors, (2101), 1519 states have internal predecessors, (2101), 203 states have call successors, (203), 120 states have call predecessors, (203), 174 states have return successors, (291), 218 states have call predecessors, (291), 199 states have call successors, (291) [2023-12-22 02:43:06,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2595 transitions. [2023-12-22 02:43:06,802 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2595 transitions. Word has length 73 [2023-12-22 02:43:06,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:06,802 INFO L495 AbstractCegarLoop]: Abstraction has 1853 states and 2595 transitions. [2023-12-22 02:43:06,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:43:06,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2595 transitions. [2023-12-22 02:43:06,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-22 02:43:06,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:06,804 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:06,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:07,008 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 [2023-12-22 02:43:07,009 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:07,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:07,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1471956680, now seen corresponding path program 1 times [2023-12-22 02:43:07,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:07,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712320653] [2023-12-22 02:43:07,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:07,010 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 [2023-12-22 02:43:07,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:07,011 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) [2023-12-22 02:43:07,042 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 [2023-12-22 02:43:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:07,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:07,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:07,154 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-22 02:43:07,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:07,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:07,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712320653] [2023-12-22 02:43:07,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712320653] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:07,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:07,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:07,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885919322] [2023-12-22 02:43:07,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:07,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:43:07,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:07,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:43:07,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:07,156 INFO L87 Difference]: Start difference. First operand 1853 states and 2595 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-22 02:43:07,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:07,838 INFO L93 Difference]: Finished difference Result 4769 states and 6574 transitions. [2023-12-22 02:43:07,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:07,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 73 [2023-12-22 02:43:07,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:07,851 INFO L225 Difference]: With dead ends: 4769 [2023-12-22 02:43:07,852 INFO L226 Difference]: Without dead ends: 3297 [2023-12-22 02:43:07,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:07,855 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 987 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:07,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 695 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:43:07,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2023-12-22 02:43:07,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 3293. [2023-12-22 02:43:07,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3293 states, 2558 states have (on average 1.3733385457388585) internal successors, (3513), 2651 states have internal predecessors, (3513), 383 states have call successors, (383), 232 states have call predecessors, (383), 350 states have return successors, (628), 418 states have call predecessors, (628), 379 states have call successors, (628) [2023-12-22 02:43:07,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3293 states to 3293 states and 4524 transitions. [2023-12-22 02:43:07,982 INFO L78 Accepts]: Start accepts. Automaton has 3293 states and 4524 transitions. Word has length 73 [2023-12-22 02:43:07,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:07,984 INFO L495 AbstractCegarLoop]: Abstraction has 3293 states and 4524 transitions. [2023-12-22 02:43:07,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-22 02:43:07,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3293 states and 4524 transitions. [2023-12-22 02:43:07,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-22 02:43:07,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:07,990 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:07,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-22 02:43:08,193 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 [2023-12-22 02:43:08,194 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:08,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:08,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1206222180, now seen corresponding path program 1 times [2023-12-22 02:43:08,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:08,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257420756] [2023-12-22 02:43:08,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:08,195 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 [2023-12-22 02:43:08,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:08,197 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) [2023-12-22 02:43:08,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 02:43:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:08,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:08,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:08,299 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:08,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:08,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:08,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1257420756] [2023-12-22 02:43:08,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1257420756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:08,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:08,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:08,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008764953] [2023-12-22 02:43:08,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:08,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:08,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:08,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:08,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:08,316 INFO L87 Difference]: Start difference. First operand 3293 states and 4524 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:43:08,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:08,528 INFO L93 Difference]: Finished difference Result 6257 states and 8583 transitions. [2023-12-22 02:43:08,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:08,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2023-12-22 02:43:08,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:08,575 INFO L225 Difference]: With dead ends: 6257 [2023-12-22 02:43:08,576 INFO L226 Difference]: Without dead ends: 4717 [2023-12-22 02:43:08,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:08,580 INFO L413 NwaCegarLoop]: 763 mSDtfsCounter, 103 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:08,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1421 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:08,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4717 states. [2023-12-22 02:43:08,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4717 to 4717. [2023-12-22 02:43:08,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4717 states, 3638 states have (on average 1.3559648158328752) internal successors, (4933), 3771 states have internal predecessors, (4933), 547 states have call successors, (547), 344 states have call predecessors, (547), 530 states have return successors, (960), 610 states have call predecessors, (960), 543 states have call successors, (960) [2023-12-22 02:43:08,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4717 states to 4717 states and 6440 transitions. [2023-12-22 02:43:08,820 INFO L78 Accepts]: Start accepts. Automaton has 4717 states and 6440 transitions. Word has length 75 [2023-12-22 02:43:08,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:08,820 INFO L495 AbstractCegarLoop]: Abstraction has 4717 states and 6440 transitions. [2023-12-22 02:43:08,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:43:08,820 INFO L276 IsEmpty]: Start isEmpty. Operand 4717 states and 6440 transitions. [2023-12-22 02:43:08,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-22 02:43:08,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:08,830 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:08,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:09,034 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 [2023-12-22 02:43:09,035 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:09,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:09,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1250330613, now seen corresponding path program 1 times [2023-12-22 02:43:09,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:09,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182807989] [2023-12-22 02:43:09,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:09,036 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 [2023-12-22 02:43:09,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:09,037 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) [2023-12-22 02:43:09,039 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 [2023-12-22 02:43:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:09,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:43:09,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:09,202 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-22 02:43:09,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:09,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:09,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182807989] [2023-12-22 02:43:09,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182807989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:09,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:09,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:43:09,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767130708] [2023-12-22 02:43:09,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:09,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:43:09,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:09,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:43:09,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:09,204 INFO L87 Difference]: Start difference. First operand 4717 states and 6440 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-22 02:43:09,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:09,544 INFO L93 Difference]: Finished difference Result 9073 states and 12394 transitions. [2023-12-22 02:43:09,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:43:09,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2023-12-22 02:43:09,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:09,562 INFO L225 Difference]: With dead ends: 9073 [2023-12-22 02:43:09,562 INFO L226 Difference]: Without dead ends: 4757 [2023-12-22 02:43:09,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-22 02:43:09,570 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 32 mSDsluCounter, 2651 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3316 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:09,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3316 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:09,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4757 states. [2023-12-22 02:43:09,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4757 to 4271. [2023-12-22 02:43:09,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4271 states, 3360 states have (on average 1.3455357142857143) internal successors, (4521), 3432 states have internal predecessors, (4521), 451 states have call successors, (451), 293 states have call predecessors, (451), 458 states have return successors, (817), 554 states have call predecessors, (817), 447 states have call successors, (817) [2023-12-22 02:43:09,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4271 states to 4271 states and 5789 transitions. [2023-12-22 02:43:09,785 INFO L78 Accepts]: Start accepts. Automaton has 4271 states and 5789 transitions. Word has length 138 [2023-12-22 02:43:09,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:09,786 INFO L495 AbstractCegarLoop]: Abstraction has 4271 states and 5789 transitions. [2023-12-22 02:43:09,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-22 02:43:09,786 INFO L276 IsEmpty]: Start isEmpty. Operand 4271 states and 5789 transitions. [2023-12-22 02:43:09,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-22 02:43:09,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:09,795 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:09,802 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 [2023-12-22 02:43:10,000 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 [2023-12-22 02:43:10,000 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:10,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:10,001 INFO L85 PathProgramCache]: Analyzing trace with hash 234858426, now seen corresponding path program 1 times [2023-12-22 02:43:10,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:10,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43855837] [2023-12-22 02:43:10,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:10,002 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:10,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:10,003 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) [2023-12-22 02:43:10,040 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 [2023-12-22 02:43:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:10,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:10,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:10,117 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-12-22 02:43:10,117 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:10,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:10,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [43855837] [2023-12-22 02:43:10,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [43855837] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:10,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:10,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:10,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34740723] [2023-12-22 02:43:10,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:10,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:10,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:10,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:10,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:10,119 INFO L87 Difference]: Start difference. First operand 4271 states and 5789 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-22 02:43:10,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:10,280 INFO L93 Difference]: Finished difference Result 6578 states and 8852 transitions. [2023-12-22 02:43:10,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:10,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 139 [2023-12-22 02:43:10,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:10,289 INFO L225 Difference]: With dead ends: 6578 [2023-12-22 02:43:10,289 INFO L226 Difference]: Without dead ends: 2748 [2023-12-22 02:43:10,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:10,295 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 138 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:10,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1191 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:10,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2023-12-22 02:43:10,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 2748. [2023-12-22 02:43:10,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2748 states, 2179 states have (on average 1.3634694814134924) internal successors, (2971), 2225 states have internal predecessors, (2971), 275 states have call successors, (275), 181 states have call predecessors, (275), 292 states have return successors, (497), 342 states have call predecessors, (497), 271 states have call successors, (497) [2023-12-22 02:43:10,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2748 states to 2748 states and 3743 transitions. [2023-12-22 02:43:10,486 INFO L78 Accepts]: Start accepts. Automaton has 2748 states and 3743 transitions. Word has length 139 [2023-12-22 02:43:10,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:10,486 INFO L495 AbstractCegarLoop]: Abstraction has 2748 states and 3743 transitions. [2023-12-22 02:43:10,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-22 02:43:10,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2748 states and 3743 transitions. [2023-12-22 02:43:10,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-22 02:43:10,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:10,495 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:10,504 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 [2023-12-22 02:43:10,699 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 [2023-12-22 02:43:10,700 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:10,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:10,700 INFO L85 PathProgramCache]: Analyzing trace with hash 765853932, now seen corresponding path program 1 times [2023-12-22 02:43:10,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:10,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615308281] [2023-12-22 02:43:10,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:10,701 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 [2023-12-22 02:43:10,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:10,708 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) [2023-12-22 02:43:10,724 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 [2023-12-22 02:43:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:10,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:10,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:10,926 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-22 02:43:10,926 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:10,926 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:10,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615308281] [2023-12-22 02:43:10,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615308281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:10,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:10,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:10,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345756858] [2023-12-22 02:43:10,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:10,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:10,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:10,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:10,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:10,928 INFO L87 Difference]: Start difference. First operand 2748 states and 3743 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-22 02:43:11,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:11,229 INFO L93 Difference]: Finished difference Result 6448 states and 8804 transitions. [2023-12-22 02:43:11,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:11,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 141 [2023-12-22 02:43:11,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:11,253 INFO L225 Difference]: With dead ends: 6448 [2023-12-22 02:43:11,253 INFO L226 Difference]: Without dead ends: 4341 [2023-12-22 02:43:11,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:11,260 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 64 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1324 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:11,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1324 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:11,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4341 states. [2023-12-22 02:43:11,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4341 to 4313. [2023-12-22 02:43:11,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4313 states, 3406 states have (on average 1.3532002348796242) internal successors, (4609), 3488 states have internal predecessors, (4609), 431 states have call successors, (431), 289 states have call predecessors, (431), 474 states have return successors, (806), 536 states have call predecessors, (806), 427 states have call successors, (806) [2023-12-22 02:43:11,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4313 states to 4313 states and 5846 transitions. [2023-12-22 02:43:11,456 INFO L78 Accepts]: Start accepts. Automaton has 4313 states and 5846 transitions. Word has length 141 [2023-12-22 02:43:11,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:11,457 INFO L495 AbstractCegarLoop]: Abstraction has 4313 states and 5846 transitions. [2023-12-22 02:43:11,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-22 02:43:11,457 INFO L276 IsEmpty]: Start isEmpty. Operand 4313 states and 5846 transitions. [2023-12-22 02:43:11,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-22 02:43:11,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:11,463 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:11,467 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 [2023-12-22 02:43:11,666 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 [2023-12-22 02:43:11,667 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:11,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:11,667 INFO L85 PathProgramCache]: Analyzing trace with hash -712871999, now seen corresponding path program 1 times [2023-12-22 02:43:11,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:11,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330712433] [2023-12-22 02:43:11,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:11,668 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 [2023-12-22 02:43:11,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:11,669 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) [2023-12-22 02:43:11,680 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 [2023-12-22 02:43:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:11,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:11,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:11,826 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-22 02:43:11,827 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:11,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:11,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330712433] [2023-12-22 02:43:11,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330712433] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:11,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:11,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:11,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647953052] [2023-12-22 02:43:11,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:11,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:11,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:11,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:11,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:11,829 INFO L87 Difference]: Start difference. First operand 4313 states and 5846 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-22 02:43:12,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:12,159 INFO L93 Difference]: Finished difference Result 11229 states and 15587 transitions. [2023-12-22 02:43:12,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:12,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 142 [2023-12-22 02:43:12,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:12,191 INFO L225 Difference]: With dead ends: 11229 [2023-12-22 02:43:12,191 INFO L226 Difference]: Without dead ends: 7557 [2023-12-22 02:43:12,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:12,200 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 94 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:12,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1359 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:12,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7557 states. [2023-12-22 02:43:12,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7557 to 7505. [2023-12-22 02:43:12,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7505 states, 5898 states have (on average 1.3236690403526619) internal successors, (7807), 6030 states have internal predecessors, (7807), 767 states have call successors, (767), 523 states have call predecessors, (767), 838 states have return successors, (1604), 952 states have call predecessors, (1604), 763 states have call successors, (1604) [2023-12-22 02:43:12,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7505 states to 7505 states and 10178 transitions. [2023-12-22 02:43:12,541 INFO L78 Accepts]: Start accepts. Automaton has 7505 states and 10178 transitions. Word has length 142 [2023-12-22 02:43:12,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:12,542 INFO L495 AbstractCegarLoop]: Abstraction has 7505 states and 10178 transitions. [2023-12-22 02:43:12,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-22 02:43:12,542 INFO L276 IsEmpty]: Start isEmpty. Operand 7505 states and 10178 transitions. [2023-12-22 02:43:12,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-22 02:43:12,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:12,551 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:12,557 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 [2023-12-22 02:43:12,754 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 [2023-12-22 02:43:12,755 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:12,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:12,756 INFO L85 PathProgramCache]: Analyzing trace with hash -287649774, now seen corresponding path program 1 times [2023-12-22 02:43:12,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:12,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372026714] [2023-12-22 02:43:12,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:12,756 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 [2023-12-22 02:43:12,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:12,757 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) [2023-12-22 02:43:12,796 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 [2023-12-22 02:43:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:12,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:12,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:12,974 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-22 02:43:12,974 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:12,974 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:12,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372026714] [2023-12-22 02:43:12,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372026714] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:12,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:12,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:12,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202358290] [2023-12-22 02:43:12,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:12,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:12,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:12,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:12,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:12,975 INFO L87 Difference]: Start difference. First operand 7505 states and 10178 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-22 02:43:13,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:13,680 INFO L93 Difference]: Finished difference Result 21117 states and 28835 transitions. [2023-12-22 02:43:13,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:13,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 143 [2023-12-22 02:43:13,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:13,719 INFO L225 Difference]: With dead ends: 21117 [2023-12-22 02:43:13,719 INFO L226 Difference]: Without dead ends: 14253 [2023-12-22 02:43:13,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:13,732 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 68 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:13,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1312 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:13,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14253 states. [2023-12-22 02:43:14,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14253 to 14249. [2023-12-22 02:43:14,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14249 states, 11165 states have (on average 1.3050604567845947) internal successors, (14571), 11426 states have internal predecessors, (14571), 1475 states have call successors, (1475), 1009 states have call predecessors, (1475), 1607 states have return successors, (3078), 1814 states have call predecessors, (3078), 1471 states have call successors, (3078) [2023-12-22 02:43:14,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14249 states to 14249 states and 19124 transitions. [2023-12-22 02:43:14,399 INFO L78 Accepts]: Start accepts. Automaton has 14249 states and 19124 transitions. Word has length 143 [2023-12-22 02:43:14,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:14,400 INFO L495 AbstractCegarLoop]: Abstraction has 14249 states and 19124 transitions. [2023-12-22 02:43:14,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-22 02:43:14,400 INFO L276 IsEmpty]: Start isEmpty. Operand 14249 states and 19124 transitions. [2023-12-22 02:43:14,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-22 02:43:14,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:14,415 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:14,436 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 [2023-12-22 02:43:14,637 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 [2023-12-22 02:43:14,637 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:14,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:14,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1543816094, now seen corresponding path program 1 times [2023-12-22 02:43:14,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:14,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990428566] [2023-12-22 02:43:14,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:14,638 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 [2023-12-22 02:43:14,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:14,645 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) [2023-12-22 02:43:14,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-22 02:43:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:14,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:14,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:14,782 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-12-22 02:43:14,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:14,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:14,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990428566] [2023-12-22 02:43:14,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990428566] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:14,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:14,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:14,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163462145] [2023-12-22 02:43:14,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:14,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:14,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:14,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:14,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:14,784 INFO L87 Difference]: Start difference. First operand 14249 states and 19124 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-22 02:43:16,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:16,790 INFO L93 Difference]: Finished difference Result 40896 states and 54872 transitions. [2023-12-22 02:43:16,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:43:16,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 147 [2023-12-22 02:43:16,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:16,896 INFO L225 Difference]: With dead ends: 40896 [2023-12-22 02:43:16,896 INFO L226 Difference]: Without dead ends: 27001 [2023-12-22 02:43:16,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-22 02:43:16,928 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 1019 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:16,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 974 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 02:43:16,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27001 states. [2023-12-22 02:43:18,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27001 to 26953. [2023-12-22 02:43:18,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26953 states, 20963 states have (on average 1.2905595573152697) internal successors, (27054), 21447 states have internal predecessors, (27054), 2870 states have call successors, (2870), 1960 states have call predecessors, (2870), 3118 states have return successors, (5872), 3546 states have call predecessors, (5872), 2866 states have call successors, (5872) [2023-12-22 02:43:18,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26953 states to 26953 states and 35796 transitions. [2023-12-22 02:43:18,372 INFO L78 Accepts]: Start accepts. Automaton has 26953 states and 35796 transitions. Word has length 147 [2023-12-22 02:43:18,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:18,373 INFO L495 AbstractCegarLoop]: Abstraction has 26953 states and 35796 transitions. [2023-12-22 02:43:18,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-22 02:43:18,373 INFO L276 IsEmpty]: Start isEmpty. Operand 26953 states and 35796 transitions. [2023-12-22 02:43:18,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-22 02:43:18,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:18,391 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:18,416 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 [2023-12-22 02:43:18,595 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 [2023-12-22 02:43:18,595 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:18,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:18,596 INFO L85 PathProgramCache]: Analyzing trace with hash 112810356, now seen corresponding path program 1 times [2023-12-22 02:43:18,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:18,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006675907] [2023-12-22 02:43:18,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:18,596 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 [2023-12-22 02:43:18,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:18,625 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) [2023-12-22 02:43:18,652 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 [2023-12-22 02:43:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:18,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:18,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:18,848 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-22 02:43:18,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:18,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:18,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006675907] [2023-12-22 02:43:18,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006675907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:18,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:18,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:18,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306508166] [2023-12-22 02:43:18,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:18,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:43:18,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:18,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:43:18,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:18,849 INFO L87 Difference]: Start difference. First operand 26953 states and 35796 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-22 02:43:20,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:20,333 INFO L93 Difference]: Finished difference Result 42850 states and 57162 transitions. [2023-12-22 02:43:20,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:20,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 164 [2023-12-22 02:43:20,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:20,388 INFO L225 Difference]: With dead ends: 42850 [2023-12-22 02:43:20,389 INFO L226 Difference]: Without dead ends: 16290 [2023-12-22 02:43:20,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:20,414 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 947 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:20,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 711 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:43:20,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16290 states. [2023-12-22 02:43:21,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16290 to 16290. [2023-12-22 02:43:21,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16290 states, 12876 states have (on average 1.2955886921404163) internal successors, (16682), 13126 states have internal predecessors, (16682), 1646 states have call successors, (1646), 1064 states have call predecessors, (1646), 1766 states have return successors, (3252), 2100 states have call predecessors, (3252), 1642 states have call successors, (3252) [2023-12-22 02:43:21,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16290 states to 16290 states and 21580 transitions. [2023-12-22 02:43:21,326 INFO L78 Accepts]: Start accepts. Automaton has 16290 states and 21580 transitions. Word has length 164 [2023-12-22 02:43:21,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:21,327 INFO L495 AbstractCegarLoop]: Abstraction has 16290 states and 21580 transitions. [2023-12-22 02:43:21,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-22 02:43:21,327 INFO L276 IsEmpty]: Start isEmpty. Operand 16290 states and 21580 transitions. [2023-12-22 02:43:21,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-22 02:43:21,340 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:21,340 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:21,347 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 (17)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:21,545 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 [2023-12-22 02:43:21,545 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:21,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:21,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1508353266, now seen corresponding path program 2 times [2023-12-22 02:43:21,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:21,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896501517] [2023-12-22 02:43:21,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 02:43:21,546 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 [2023-12-22 02:43:21,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:21,548 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) [2023-12-22 02:43:21,549 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 [2023-12-22 02:43:21,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 02:43:21,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 02:43:21,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:21,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:21,644 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-22 02:43:21,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:21,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:21,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896501517] [2023-12-22 02:43:21,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896501517] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:21,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:21,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:21,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640587248] [2023-12-22 02:43:21,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:21,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:21,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:21,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:21,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:21,646 INFO L87 Difference]: Start difference. First operand 16290 states and 21580 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-22 02:43:23,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:23,220 INFO L93 Difference]: Finished difference Result 47392 states and 62676 transitions. [2023-12-22 02:43:23,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:23,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2023-12-22 02:43:23,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:23,406 INFO L225 Difference]: With dead ends: 47392 [2023-12-22 02:43:23,406 INFO L226 Difference]: Without dead ends: 31584 [2023-12-22 02:43:23,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:23,433 INFO L413 NwaCegarLoop]: 733 mSDtfsCounter, 690 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:23,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 860 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:23,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31584 states. [2023-12-22 02:43:25,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31584 to 31535. [2023-12-22 02:43:25,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31535 states, 24853 states have (on average 1.2854383776606446) internal successors, (31947), 25269 states have internal predecessors, (31947), 3248 states have call successors, (3248), 2106 states have call predecessors, (3248), 3432 states have return successors, (6333), 4160 states have call predecessors, (6333), 3244 states have call successors, (6333) [2023-12-22 02:43:25,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31535 states to 31535 states and 41528 transitions. [2023-12-22 02:43:25,237 INFO L78 Accepts]: Start accepts. Automaton has 31535 states and 41528 transitions. Word has length 164 [2023-12-22 02:43:25,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:25,238 INFO L495 AbstractCegarLoop]: Abstraction has 31535 states and 41528 transitions. [2023-12-22 02:43:25,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-22 02:43:25,238 INFO L276 IsEmpty]: Start isEmpty. Operand 31535 states and 41528 transitions. [2023-12-22 02:43:25,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-22 02:43:25,246 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:25,246 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:25,262 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 [2023-12-22 02:43:25,450 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 [2023-12-22 02:43:25,451 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:25,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:25,452 INFO L85 PathProgramCache]: Analyzing trace with hash 830757112, now seen corresponding path program 1 times [2023-12-22 02:43:25,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:25,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732210539] [2023-12-22 02:43:25,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:25,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:25,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:25,453 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) [2023-12-22 02:43:25,480 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 [2023-12-22 02:43:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:25,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:25,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:25,614 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-22 02:43:25,614 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:25,614 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:25,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732210539] [2023-12-22 02:43:25,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732210539] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:25,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:25,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:25,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078928623] [2023-12-22 02:43:25,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:25,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:25,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:25,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:25,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:25,618 INFO L87 Difference]: Start difference. First operand 31535 states and 41528 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-22 02:43:27,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:27,271 INFO L93 Difference]: Finished difference Result 62371 states and 82030 transitions. [2023-12-22 02:43:27,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:27,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 164 [2023-12-22 02:43:27,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:27,354 INFO L225 Difference]: With dead ends: 62371 [2023-12-22 02:43:27,354 INFO L226 Difference]: Without dead ends: 31272 [2023-12-22 02:43:27,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:27,399 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 103 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:27,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1362 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:43:27,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31272 states. [2023-12-22 02:43:29,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31272 to 31268. [2023-12-22 02:43:29,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31268 states, 24604 states have (on average 1.2636563160461713) internal successors, (31091), 25084 states have internal predecessors, (31091), 3239 states have call successors, (3239), 2097 states have call predecessors, (3239), 3423 states have return successors, (5551), 4087 states have call predecessors, (5551), 3235 states have call successors, (5551) [2023-12-22 02:43:29,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31268 states to 31268 states and 39881 transitions. [2023-12-22 02:43:29,149 INFO L78 Accepts]: Start accepts. Automaton has 31268 states and 39881 transitions. Word has length 164 [2023-12-22 02:43:29,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:29,149 INFO L495 AbstractCegarLoop]: Abstraction has 31268 states and 39881 transitions. [2023-12-22 02:43:29,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-22 02:43:29,149 INFO L276 IsEmpty]: Start isEmpty. Operand 31268 states and 39881 transitions. [2023-12-22 02:43:29,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:43:29,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:29,152 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:29,156 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 [2023-12-22 02:43:29,356 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 [2023-12-22 02:43:29,357 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:29,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:29,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1130847186, now seen corresponding path program 1 times [2023-12-22 02:43:29,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:29,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333353231] [2023-12-22 02:43:29,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:29,359 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 [2023-12-22 02:43:29,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:29,361 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) [2023-12-22 02:43:29,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-22 02:43:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:29,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:29,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:29,514 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-22 02:43:29,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:29,515 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:29,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333353231] [2023-12-22 02:43:29,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333353231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:29,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:29,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:29,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436680488] [2023-12-22 02:43:29,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:29,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:29,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:29,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:29,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:29,516 INFO L87 Difference]: Start difference. First operand 31268 states and 39881 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-22 02:43:29,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:29,952 INFO L93 Difference]: Finished difference Result 35789 states and 45613 transitions. [2023-12-22 02:43:29,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:29,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 171 [2023-12-22 02:43:29,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:29,955 INFO L225 Difference]: With dead ends: 35789 [2023-12-22 02:43:29,955 INFO L226 Difference]: Without dead ends: 352 [2023-12-22 02:43:29,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:29,993 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 74 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:29,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1267 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:29,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-12-22 02:43:30,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2023-12-22 02:43:30,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 317 states have (on average 1.637223974763407) internal successors, (519), 319 states have internal predecessors, (519), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-22 02:43:30,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 573 transitions. [2023-12-22 02:43:30,004 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 573 transitions. Word has length 171 [2023-12-22 02:43:30,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:30,004 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 573 transitions. [2023-12-22 02:43:30,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-22 02:43:30,004 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 573 transitions. [2023-12-22 02:43:30,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:30,005 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:30,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:30,028 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 [2023-12-22 02:43:30,210 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 [2023-12-22 02:43:30,210 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:30,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:30,211 INFO L85 PathProgramCache]: Analyzing trace with hash 971192510, now seen corresponding path program 1 times [2023-12-22 02:43:30,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:30,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118800293] [2023-12-22 02:43:30,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:30,211 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 [2023-12-22 02:43:30,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:30,212 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) [2023-12-22 02:43:30,217 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 [2023-12-22 02:43:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:30,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:30,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:30,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:30,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:30,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:30,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118800293] [2023-12-22 02:43:30,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118800293] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:30,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:30,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:30,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462718778] [2023-12-22 02:43:30,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:30,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:30,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:30,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:30,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:30,398 INFO L87 Difference]: Start difference. First operand 352 states and 573 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:30,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:30,450 INFO L93 Difference]: Finished difference Result 699 states and 1139 transitions. [2023-12-22 02:43:30,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:30,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:30,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:30,452 INFO L225 Difference]: With dead ends: 699 [2023-12-22 02:43:30,452 INFO L226 Difference]: Without dead ends: 352 [2023-12-22 02:43:30,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:30,453 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 566 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:30,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 527 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:43:30,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-12-22 02:43:30,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2023-12-22 02:43:30,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 317 states have (on average 1.6340694006309149) internal successors, (518), 319 states have internal predecessors, (518), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-22 02:43:30,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 572 transitions. [2023-12-22 02:43:30,461 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 572 transitions. Word has length 162 [2023-12-22 02:43:30,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:30,461 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 572 transitions. [2023-12-22 02:43:30,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:30,462 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 572 transitions. [2023-12-22 02:43:30,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:30,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:30,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:30,468 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 [2023-12-22 02:43:30,663 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 [2023-12-22 02:43:30,663 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:30,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:30,664 INFO L85 PathProgramCache]: Analyzing trace with hash -9762304, now seen corresponding path program 1 times [2023-12-22 02:43:30,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:30,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260919457] [2023-12-22 02:43:30,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:30,664 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:30,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:30,666 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) [2023-12-22 02:43:30,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-22 02:43:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:30,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:30,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:30,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:30,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:30,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:30,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260919457] [2023-12-22 02:43:30,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260919457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:30,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:30,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:30,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169296308] [2023-12-22 02:43:30,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:30,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:30,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:30,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:30,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:30,830 INFO L87 Difference]: Start difference. First operand 352 states and 572 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:30,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:30,884 INFO L93 Difference]: Finished difference Result 691 states and 1122 transitions. [2023-12-22 02:43:30,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:30,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:30,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:30,885 INFO L225 Difference]: With dead ends: 691 [2023-12-22 02:43:30,886 INFO L226 Difference]: Without dead ends: 352 [2023-12-22 02:43:30,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:30,887 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 557 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:30,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 526 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:43:30,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-12-22 02:43:30,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2023-12-22 02:43:30,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 317 states have (on average 1.6309148264984228) internal successors, (517), 319 states have internal predecessors, (517), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-22 02:43:30,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 571 transitions. [2023-12-22 02:43:30,896 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 571 transitions. Word has length 162 [2023-12-22 02:43:30,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:30,896 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 571 transitions. [2023-12-22 02:43:30,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:30,896 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 571 transitions. [2023-12-22 02:43:30,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:30,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:30,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:30,902 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 [2023-12-22 02:43:31,097 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 [2023-12-22 02:43:31,098 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:31,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:31,098 INFO L85 PathProgramCache]: Analyzing trace with hash 254885186, now seen corresponding path program 1 times [2023-12-22 02:43:31,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:31,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807923542] [2023-12-22 02:43:31,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:31,099 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 [2023-12-22 02:43:31,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:31,100 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) [2023-12-22 02:43:31,102 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 [2023-12-22 02:43:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:31,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:31,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:31,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:31,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:31,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807923542] [2023-12-22 02:43:31,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807923542] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:31,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:31,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:31,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388305815] [2023-12-22 02:43:31,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:31,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:31,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:31,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:31,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:31,337 INFO L87 Difference]: Start difference. First operand 352 states and 571 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:32,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:32,033 INFO L93 Difference]: Finished difference Result 1067 states and 1748 transitions. [2023-12-22 02:43:32,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:43:32,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:32,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:32,036 INFO L225 Difference]: With dead ends: 1067 [2023-12-22 02:43:32,036 INFO L226 Difference]: Without dead ends: 734 [2023-12-22 02:43:32,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:32,038 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 1102 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:32,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 1476 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:43:32,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-12-22 02:43:32,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 703. [2023-12-22 02:43:32,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 640 states have (on average 1.6421875) internal successors, (1051), 643 states have internal predecessors, (1051), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-22 02:43:32,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1148 transitions. [2023-12-22 02:43:32,081 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1148 transitions. Word has length 162 [2023-12-22 02:43:32,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:32,082 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 1148 transitions. [2023-12-22 02:43:32,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:32,082 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1148 transitions. [2023-12-22 02:43:32,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:32,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:32,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:32,090 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 [2023-12-22 02:43:32,284 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 [2023-12-22 02:43:32,285 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:32,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:32,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1950483198, now seen corresponding path program 1 times [2023-12-22 02:43:32,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:32,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695648560] [2023-12-22 02:43:32,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:32,286 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 [2023-12-22 02:43:32,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:32,287 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) [2023-12-22 02:43:32,288 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 [2023-12-22 02:43:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:32,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:32,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:32,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:32,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:32,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:32,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695648560] [2023-12-22 02:43:32,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695648560] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:32,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:32,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:32,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750455076] [2023-12-22 02:43:32,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:32,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:32,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:32,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:32,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:32,505 INFO L87 Difference]: Start difference. First operand 703 states and 1148 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:32,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:32,915 INFO L93 Difference]: Finished difference Result 1387 states and 2271 transitions. [2023-12-22 02:43:32,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:32,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:32,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:32,918 INFO L225 Difference]: With dead ends: 1387 [2023-12-22 02:43:32,918 INFO L226 Difference]: Without dead ends: 703 [2023-12-22 02:43:32,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:32,921 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 773 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:32,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 921 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:32,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2023-12-22 02:43:32,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 703. [2023-12-22 02:43:32,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 640 states have (on average 1.63125) internal successors, (1044), 643 states have internal predecessors, (1044), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-22 02:43:32,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1141 transitions. [2023-12-22 02:43:32,957 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1141 transitions. Word has length 162 [2023-12-22 02:43:32,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:32,957 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 1141 transitions. [2023-12-22 02:43:32,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:32,957 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1141 transitions. [2023-12-22 02:43:32,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:32,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:32,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:32,966 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 [2023-12-22 02:43:33,163 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 [2023-12-22 02:43:33,164 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:33,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:33,165 INFO L85 PathProgramCache]: Analyzing trace with hash 556614276, now seen corresponding path program 1 times [2023-12-22 02:43:33,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:33,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592017142] [2023-12-22 02:43:33,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:33,165 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 [2023-12-22 02:43:33,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:33,167 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) [2023-12-22 02:43:33,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-22 02:43:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:33,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:33,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:33,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:33,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:33,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:33,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592017142] [2023-12-22 02:43:33,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592017142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:33,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:33,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:33,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167887593] [2023-12-22 02:43:33,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:33,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:33,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:33,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:33,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:33,361 INFO L87 Difference]: Start difference. First operand 703 states and 1141 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:33,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:33,774 INFO L93 Difference]: Finished difference Result 1387 states and 2257 transitions. [2023-12-22 02:43:33,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:33,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:33,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:33,777 INFO L225 Difference]: With dead ends: 1387 [2023-12-22 02:43:33,777 INFO L226 Difference]: Without dead ends: 703 [2023-12-22 02:43:33,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:33,778 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 767 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:33,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 914 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:33,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2023-12-22 02:43:33,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 703. [2023-12-22 02:43:33,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 640 states have (on average 1.6203125) internal successors, (1037), 643 states have internal predecessors, (1037), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-22 02:43:33,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1134 transitions. [2023-12-22 02:43:33,812 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1134 transitions. Word has length 162 [2023-12-22 02:43:33,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:33,812 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 1134 transitions. [2023-12-22 02:43:33,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:33,813 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1134 transitions. [2023-12-22 02:43:33,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:33,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:33,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:33,821 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 [2023-12-22 02:43:34,019 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 [2023-12-22 02:43:34,020 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:34,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:34,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1155622204, now seen corresponding path program 1 times [2023-12-22 02:43:34,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:34,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259973961] [2023-12-22 02:43:34,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:34,021 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 [2023-12-22 02:43:34,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:34,022 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) [2023-12-22 02:43:34,024 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 [2023-12-22 02:43:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:34,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:34,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:34,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:34,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:34,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:34,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259973961] [2023-12-22 02:43:34,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259973961] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:34,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:34,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:34,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129116563] [2023-12-22 02:43:34,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:34,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:34,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:34,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:34,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:34,227 INFO L87 Difference]: Start difference. First operand 703 states and 1134 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:34,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:34,643 INFO L93 Difference]: Finished difference Result 1387 states and 2243 transitions. [2023-12-22 02:43:34,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:34,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:34,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:34,645 INFO L225 Difference]: With dead ends: 1387 [2023-12-22 02:43:34,645 INFO L226 Difference]: Without dead ends: 703 [2023-12-22 02:43:34,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:34,646 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 761 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:34,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 907 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:34,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2023-12-22 02:43:34,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 703. [2023-12-22 02:43:34,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 640 states have (on average 1.609375) internal successors, (1030), 643 states have internal predecessors, (1030), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-22 02:43:34,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1127 transitions. [2023-12-22 02:43:34,682 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1127 transitions. Word has length 162 [2023-12-22 02:43:34,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:34,682 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 1127 transitions. [2023-12-22 02:43:34,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:34,682 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1127 transitions. [2023-12-22 02:43:34,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:34,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:34,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:34,688 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 [2023-12-22 02:43:34,889 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 [2023-12-22 02:43:34,889 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:34,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:34,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1837185668, now seen corresponding path program 1 times [2023-12-22 02:43:34,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:34,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801116578] [2023-12-22 02:43:34,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:34,890 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 [2023-12-22 02:43:34,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:34,894 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) [2023-12-22 02:43:34,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-22 02:43:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:35,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:35,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:35,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:35,090 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:35,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:35,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801116578] [2023-12-22 02:43:35,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [801116578] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:35,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:35,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:35,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297298101] [2023-12-22 02:43:35,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:35,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:35,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:35,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:35,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:35,092 INFO L87 Difference]: Start difference. First operand 703 states and 1127 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:35,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:35,521 INFO L93 Difference]: Finished difference Result 1387 states and 2229 transitions. [2023-12-22 02:43:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:35,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:35,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:35,523 INFO L225 Difference]: With dead ends: 1387 [2023-12-22 02:43:35,523 INFO L226 Difference]: Without dead ends: 703 [2023-12-22 02:43:35,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:35,526 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 755 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:35,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 900 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:35,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2023-12-22 02:43:35,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 703. [2023-12-22 02:43:35,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 640 states have (on average 1.5984375) internal successors, (1023), 643 states have internal predecessors, (1023), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-22 02:43:35,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1120 transitions. [2023-12-22 02:43:35,565 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1120 transitions. Word has length 162 [2023-12-22 02:43:35,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:35,565 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 1120 transitions. [2023-12-22 02:43:35,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:35,565 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1120 transitions. [2023-12-22 02:43:35,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:35,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:35,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:35,578 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 [2023-12-22 02:43:35,772 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 [2023-12-22 02:43:35,773 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:35,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:35,774 INFO L85 PathProgramCache]: Analyzing trace with hash 409707204, now seen corresponding path program 1 times [2023-12-22 02:43:35,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:35,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877080060] [2023-12-22 02:43:35,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:35,774 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 [2023-12-22 02:43:35,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:35,776 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) [2023-12-22 02:43:35,776 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 (28)] Waiting until timeout for monitored process [2023-12-22 02:43:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:35,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:35,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:35,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:35,988 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:35,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:35,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877080060] [2023-12-22 02:43:35,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877080060] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:35,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:35,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:35,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414069718] [2023-12-22 02:43:35,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:35,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:35,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:35,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:35,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:35,991 INFO L87 Difference]: Start difference. First operand 703 states and 1120 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:36,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:36,336 INFO L93 Difference]: Finished difference Result 1387 states and 2215 transitions. [2023-12-22 02:43:36,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:36,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:36,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:36,338 INFO L225 Difference]: With dead ends: 1387 [2023-12-22 02:43:36,338 INFO L226 Difference]: Without dead ends: 703 [2023-12-22 02:43:36,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:36,339 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 749 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:36,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 893 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:43:36,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2023-12-22 02:43:36,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 703. [2023-12-22 02:43:36,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 640 states have (on average 1.5875) internal successors, (1016), 643 states have internal predecessors, (1016), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-22 02:43:36,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1113 transitions. [2023-12-22 02:43:36,365 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1113 transitions. Word has length 162 [2023-12-22 02:43:36,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:36,365 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 1113 transitions. [2023-12-22 02:43:36,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:36,365 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1113 transitions. [2023-12-22 02:43:36,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:36,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:36,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:36,374 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 [2023-12-22 02:43:36,571 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 [2023-12-22 02:43:36,572 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:36,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:36,572 INFO L85 PathProgramCache]: Analyzing trace with hash 779301508, now seen corresponding path program 1 times [2023-12-22 02:43:36,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:36,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1308100951] [2023-12-22 02:43:36,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:36,573 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 [2023-12-22 02:43:36,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:36,574 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) [2023-12-22 02:43:36,576 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 [2023-12-22 02:43:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:36,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:36,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:36,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:36,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:36,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:36,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1308100951] [2023-12-22 02:43:36,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1308100951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:36,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:36,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:36,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408872399] [2023-12-22 02:43:36,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:36,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:36,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:36,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:36,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:36,797 INFO L87 Difference]: Start difference. First operand 703 states and 1113 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:37,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:37,191 INFO L93 Difference]: Finished difference Result 1387 states and 2201 transitions. [2023-12-22 02:43:37,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:37,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:37,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:37,192 INFO L225 Difference]: With dead ends: 1387 [2023-12-22 02:43:37,192 INFO L226 Difference]: Without dead ends: 703 [2023-12-22 02:43:37,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:37,193 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 743 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:37,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 886 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:37,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2023-12-22 02:43:37,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 703. [2023-12-22 02:43:37,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 640 states have (on average 1.5765625) internal successors, (1009), 643 states have internal predecessors, (1009), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-22 02:43:37,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1106 transitions. [2023-12-22 02:43:37,220 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1106 transitions. Word has length 162 [2023-12-22 02:43:37,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:37,220 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 1106 transitions. [2023-12-22 02:43:37,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:37,220 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1106 transitions. [2023-12-22 02:43:37,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:37,221 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:37,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:37,225 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 [2023-12-22 02:43:37,424 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 [2023-12-22 02:43:37,424 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:37,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:37,425 INFO L85 PathProgramCache]: Analyzing trace with hash -178607420, now seen corresponding path program 1 times [2023-12-22 02:43:37,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:37,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114304198] [2023-12-22 02:43:37,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:37,425 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 [2023-12-22 02:43:37,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:37,427 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) [2023-12-22 02:43:37,429 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 [2023-12-22 02:43:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:37,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:37,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:37,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:37,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:37,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:37,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114304198] [2023-12-22 02:43:37,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114304198] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:37,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:37,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:37,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133090773] [2023-12-22 02:43:37,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:37,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:37,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:37,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:37,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:37,650 INFO L87 Difference]: Start difference. First operand 703 states and 1106 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:38,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:38,059 INFO L93 Difference]: Finished difference Result 1387 states and 2187 transitions. [2023-12-22 02:43:38,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:38,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:38,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:38,060 INFO L225 Difference]: With dead ends: 1387 [2023-12-22 02:43:38,060 INFO L226 Difference]: Without dead ends: 703 [2023-12-22 02:43:38,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:38,062 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 737 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:38,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 879 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:38,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2023-12-22 02:43:38,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 703. [2023-12-22 02:43:38,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 640 states have (on average 1.565625) internal successors, (1002), 643 states have internal predecessors, (1002), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-22 02:43:38,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1099 transitions. [2023-12-22 02:43:38,090 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1099 transitions. Word has length 162 [2023-12-22 02:43:38,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:38,090 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 1099 transitions. [2023-12-22 02:43:38,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:38,090 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1099 transitions. [2023-12-22 02:43:38,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:38,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:38,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:38,114 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 [2023-12-22 02:43:38,297 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 [2023-12-22 02:43:38,298 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:38,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:38,298 INFO L85 PathProgramCache]: Analyzing trace with hash -209507708, now seen corresponding path program 1 times [2023-12-22 02:43:38,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:38,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104658733] [2023-12-22 02:43:38,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:38,299 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 [2023-12-22 02:43:38,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:38,313 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) [2023-12-22 02:43:38,314 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 [2023-12-22 02:43:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:38,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:38,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:38,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:38,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:38,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:38,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104658733] [2023-12-22 02:43:38,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104658733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:38,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:38,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:38,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128781684] [2023-12-22 02:43:38,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:38,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:38,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:38,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:38,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:38,523 INFO L87 Difference]: Start difference. First operand 703 states and 1099 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:38,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:38,922 INFO L93 Difference]: Finished difference Result 1387 states and 2173 transitions. [2023-12-22 02:43:38,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:38,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:38,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:38,924 INFO L225 Difference]: With dead ends: 1387 [2023-12-22 02:43:38,924 INFO L226 Difference]: Without dead ends: 703 [2023-12-22 02:43:38,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:38,926 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 730 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:38,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 872 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:43:38,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2023-12-22 02:43:38,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 703. [2023-12-22 02:43:38,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 640 states have (on average 1.5546875) internal successors, (995), 643 states have internal predecessors, (995), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-22 02:43:38,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1092 transitions. [2023-12-22 02:43:38,957 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1092 transitions. Word has length 162 [2023-12-22 02:43:38,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:38,957 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 1092 transitions. [2023-12-22 02:43:38,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:38,957 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1092 transitions. [2023-12-22 02:43:38,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:38,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:38,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:38,965 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 [2023-12-22 02:43:39,163 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 [2023-12-22 02:43:39,163 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:39,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:39,163 INFO L85 PathProgramCache]: Analyzing trace with hash -754380282, now seen corresponding path program 1 times [2023-12-22 02:43:39,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:39,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560004902] [2023-12-22 02:43:39,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:39,164 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 [2023-12-22 02:43:39,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:39,181 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) [2023-12-22 02:43:39,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-22 02:43:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:39,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:39,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:39,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:39,375 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:39,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:39,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560004902] [2023-12-22 02:43:39,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560004902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:39,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:39,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:39,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861912841] [2023-12-22 02:43:39,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:39,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:39,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:39,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:39,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:39,377 INFO L87 Difference]: Start difference. First operand 703 states and 1092 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:39,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:39,733 INFO L93 Difference]: Finished difference Result 1387 states and 2159 transitions. [2023-12-22 02:43:39,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:39,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:39,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:39,734 INFO L225 Difference]: With dead ends: 1387 [2023-12-22 02:43:39,735 INFO L226 Difference]: Without dead ends: 703 [2023-12-22 02:43:39,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:39,736 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 724 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:39,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 865 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:43:39,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2023-12-22 02:43:39,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 703. [2023-12-22 02:43:39,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 640 states have (on average 1.54375) internal successors, (988), 643 states have internal predecessors, (988), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-22 02:43:39,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1085 transitions. [2023-12-22 02:43:39,769 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1085 transitions. Word has length 162 [2023-12-22 02:43:39,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:39,769 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 1085 transitions. [2023-12-22 02:43:39,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:39,769 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1085 transitions. [2023-12-22 02:43:39,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:39,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:39,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:39,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:39,976 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 [2023-12-22 02:43:39,976 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:39,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:39,976 INFO L85 PathProgramCache]: Analyzing trace with hash -151606714, now seen corresponding path program 1 times [2023-12-22 02:43:39,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:39,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858117838] [2023-12-22 02:43:39,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:39,977 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 [2023-12-22 02:43:39,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:39,978 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) [2023-12-22 02:43:39,980 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 [2023-12-22 02:43:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:40,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:40,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:40,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:40,192 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:40,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:40,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858117838] [2023-12-22 02:43:40,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858117838] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:40,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:40,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:40,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037625511] [2023-12-22 02:43:40,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:40,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:40,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:40,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:40,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:40,195 INFO L87 Difference]: Start difference. First operand 703 states and 1085 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:40,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:40,516 INFO L93 Difference]: Finished difference Result 1387 states and 2145 transitions. [2023-12-22 02:43:40,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:40,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:40,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:40,518 INFO L225 Difference]: With dead ends: 1387 [2023-12-22 02:43:40,518 INFO L226 Difference]: Without dead ends: 703 [2023-12-22 02:43:40,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:40,519 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 718 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:40,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 858 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:43:40,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2023-12-22 02:43:40,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 703. [2023-12-22 02:43:40,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 640 states have (on average 1.5328125) internal successors, (981), 643 states have internal predecessors, (981), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-22 02:43:40,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1078 transitions. [2023-12-22 02:43:40,554 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1078 transitions. Word has length 162 [2023-12-22 02:43:40,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:40,555 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 1078 transitions. [2023-12-22 02:43:40,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:40,555 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1078 transitions. [2023-12-22 02:43:40,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:40,555 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:40,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:40,564 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 [2023-12-22 02:43:40,760 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 [2023-12-22 02:43:40,760 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:40,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:40,761 INFO L85 PathProgramCache]: Analyzing trace with hash -824899066, now seen corresponding path program 1 times [2023-12-22 02:43:40,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:40,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679047562] [2023-12-22 02:43:40,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:40,761 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 [2023-12-22 02:43:40,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:40,768 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) [2023-12-22 02:43:40,801 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 [2023-12-22 02:43:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:40,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:40,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:40,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:40,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:40,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679047562] [2023-12-22 02:43:40,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679047562] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:40,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:40,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:40,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328114648] [2023-12-22 02:43:40,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:40,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:40,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:40,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:40,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:40,966 INFO L87 Difference]: Start difference. First operand 703 states and 1078 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:41,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:41,481 INFO L93 Difference]: Finished difference Result 1553 states and 2403 transitions. [2023-12-22 02:43:41,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:41,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:41,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:41,483 INFO L225 Difference]: With dead ends: 1553 [2023-12-22 02:43:41,483 INFO L226 Difference]: Without dead ends: 869 [2023-12-22 02:43:41,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:41,485 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 826 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:41,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 852 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:43:41,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2023-12-22 02:43:41,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 869. [2023-12-22 02:43:41,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 800 states have (on average 1.5125) internal successors, (1210), 803 states have internal predecessors, (1210), 51 states have call successors, (51), 17 states have call predecessors, (51), 17 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:43:41,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1311 transitions. [2023-12-22 02:43:41,522 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1311 transitions. Word has length 162 [2023-12-22 02:43:41,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:41,522 INFO L495 AbstractCegarLoop]: Abstraction has 869 states and 1311 transitions. [2023-12-22 02:43:41,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:41,522 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1311 transitions. [2023-12-22 02:43:41,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:41,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:41,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:41,530 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 (34)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:41,728 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 [2023-12-22 02:43:41,728 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:41,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:41,729 INFO L85 PathProgramCache]: Analyzing trace with hash -708070842, now seen corresponding path program 1 times [2023-12-22 02:43:41,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:41,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102318408] [2023-12-22 02:43:41,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:41,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:41,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:41,731 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) [2023-12-22 02:43:41,731 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 [2023-12-22 02:43:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:41,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:41,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:41,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:41,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:41,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:41,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102318408] [2023-12-22 02:43:41,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102318408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:41,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:41,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:41,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394828270] [2023-12-22 02:43:41,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:41,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:41,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:41,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:41,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:41,944 INFO L87 Difference]: Start difference. First operand 869 states and 1311 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:42,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:42,420 INFO L93 Difference]: Finished difference Result 1885 states and 2869 transitions. [2023-12-22 02:43:42,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:42,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:42,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:42,424 INFO L225 Difference]: With dead ends: 1885 [2023-12-22 02:43:42,424 INFO L226 Difference]: Without dead ends: 1035 [2023-12-22 02:43:42,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:42,426 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 819 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:42,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 845 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:42,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2023-12-22 02:43:42,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 1035. [2023-12-22 02:43:42,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 960 states have (on average 1.4947916666666667) internal successors, (1435), 963 states have internal predecessors, (1435), 53 states have call successors, (53), 21 states have call predecessors, (53), 21 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-22 02:43:42,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1540 transitions. [2023-12-22 02:43:42,475 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1540 transitions. Word has length 162 [2023-12-22 02:43:42,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:42,475 INFO L495 AbstractCegarLoop]: Abstraction has 1035 states and 1540 transitions. [2023-12-22 02:43:42,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:42,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1540 transitions. [2023-12-22 02:43:42,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:42,476 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:42,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:42,482 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 [2023-12-22 02:43:42,680 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 [2023-12-22 02:43:42,681 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:42,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:42,681 INFO L85 PathProgramCache]: Analyzing trace with hash -798621723, now seen corresponding path program 1 times [2023-12-22 02:43:42,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:42,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403332944] [2023-12-22 02:43:42,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:42,682 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:42,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:42,710 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) [2023-12-22 02:43:42,745 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 [2023-12-22 02:43:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:42,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:42,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:42,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:42,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:42,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:42,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403332944] [2023-12-22 02:43:42,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403332944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:42,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:42,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:42,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501432287] [2023-12-22 02:43:42,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:42,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:42,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:42,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:42,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:42,912 INFO L87 Difference]: Start difference. First operand 1035 states and 1540 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:43,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:43,411 INFO L93 Difference]: Finished difference Result 2217 states and 3327 transitions. [2023-12-22 02:43:43,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:43,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:43,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:43,414 INFO L225 Difference]: With dead ends: 2217 [2023-12-22 02:43:43,414 INFO L226 Difference]: Without dead ends: 1201 [2023-12-22 02:43:43,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:43,415 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 813 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:43,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 838 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:43,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2023-12-22 02:43:43,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1201. [2023-12-22 02:43:43,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1120 states have (on average 1.4785714285714286) internal successors, (1656), 1123 states have internal predecessors, (1656), 55 states have call successors, (55), 25 states have call predecessors, (55), 25 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2023-12-22 02:43:43,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1765 transitions. [2023-12-22 02:43:43,462 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1765 transitions. Word has length 162 [2023-12-22 02:43:43,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:43,462 INFO L495 AbstractCegarLoop]: Abstraction has 1201 states and 1765 transitions. [2023-12-22 02:43:43,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:43,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1765 transitions. [2023-12-22 02:43:43,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:43,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:43,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:43,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:43,668 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 [2023-12-22 02:43:43,668 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:43,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:43,668 INFO L85 PathProgramCache]: Analyzing trace with hash 157923365, now seen corresponding path program 1 times [2023-12-22 02:43:43,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:43,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193015297] [2023-12-22 02:43:43,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:43,669 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:43,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:43,670 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) [2023-12-22 02:43:43,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-22 02:43:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:43,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:43,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:43,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:43,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:43,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:43,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193015297] [2023-12-22 02:43:43,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193015297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:43,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:43,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:43,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055997092] [2023-12-22 02:43:43,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:43,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:43,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:43,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:43,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:43,851 INFO L87 Difference]: Start difference. First operand 1201 states and 1765 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:44,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:44,383 INFO L93 Difference]: Finished difference Result 2549 states and 3777 transitions. [2023-12-22 02:43:44,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:44,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:44,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:44,386 INFO L225 Difference]: With dead ends: 2549 [2023-12-22 02:43:44,386 INFO L226 Difference]: Without dead ends: 1367 [2023-12-22 02:43:44,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:44,391 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 806 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:44,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 831 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:43:44,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2023-12-22 02:43:44,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1367. [2023-12-22 02:43:44,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 1280 states have (on average 1.46328125) internal successors, (1873), 1283 states have internal predecessors, (1873), 57 states have call successors, (57), 29 states have call predecessors, (57), 29 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-22 02:43:44,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1986 transitions. [2023-12-22 02:43:44,446 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1986 transitions. Word has length 162 [2023-12-22 02:43:44,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:44,448 INFO L495 AbstractCegarLoop]: Abstraction has 1367 states and 1986 transitions. [2023-12-22 02:43:44,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:44,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1986 transitions. [2023-12-22 02:43:44,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:44,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:44,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:44,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:44,654 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 [2023-12-22 02:43:44,655 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:44,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:44,656 INFO L85 PathProgramCache]: Analyzing trace with hash -702549884, now seen corresponding path program 1 times [2023-12-22 02:43:44,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:44,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972808277] [2023-12-22 02:43:44,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:44,656 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:44,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:44,657 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) [2023-12-22 02:43:44,673 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 [2023-12-22 02:43:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:44,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:44,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:44,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:44,866 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:44,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:44,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972808277] [2023-12-22 02:43:44,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972808277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:44,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:44,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:44,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584718955] [2023-12-22 02:43:44,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:44,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:44,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:44,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:44,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:44,868 INFO L87 Difference]: Start difference. First operand 1367 states and 1986 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:45,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:45,349 INFO L93 Difference]: Finished difference Result 2881 states and 4219 transitions. [2023-12-22 02:43:45,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:45,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:45,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:45,352 INFO L225 Difference]: With dead ends: 2881 [2023-12-22 02:43:45,352 INFO L226 Difference]: Without dead ends: 1533 [2023-12-22 02:43:45,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:45,356 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 798 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:45,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 824 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:45,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2023-12-22 02:43:45,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1533. [2023-12-22 02:43:45,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1440 states have (on average 1.448611111111111) internal successors, (2086), 1443 states have internal predecessors, (2086), 59 states have call successors, (59), 33 states have call predecessors, (59), 33 states have return successors, (58), 57 states have call predecessors, (58), 57 states have call successors, (58) [2023-12-22 02:43:45,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 2203 transitions. [2023-12-22 02:43:45,434 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 2203 transitions. Word has length 162 [2023-12-22 02:43:45,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:45,434 INFO L495 AbstractCegarLoop]: Abstraction has 1533 states and 2203 transitions. [2023-12-22 02:43:45,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:45,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 2203 transitions. [2023-12-22 02:43:45,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:45,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:45,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:45,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2023-12-22 02:43:45,643 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 [2023-12-22 02:43:45,643 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:45,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:45,644 INFO L85 PathProgramCache]: Analyzing trace with hash 159283718, now seen corresponding path program 1 times [2023-12-22 02:43:45,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:45,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118319446] [2023-12-22 02:43:45,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:45,645 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 [2023-12-22 02:43:45,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:45,648 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) [2023-12-22 02:43:45,649 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 [2023-12-22 02:43:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:45,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:45,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:45,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:45,853 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:45,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:45,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118319446] [2023-12-22 02:43:45,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118319446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:45,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:45,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:45,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390219916] [2023-12-22 02:43:45,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:45,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:45,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:45,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:45,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:45,855 INFO L87 Difference]: Start difference. First operand 1533 states and 2203 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:46,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:46,351 INFO L93 Difference]: Finished difference Result 3213 states and 4653 transitions. [2023-12-22 02:43:46,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:46,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:46,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:46,358 INFO L225 Difference]: With dead ends: 3213 [2023-12-22 02:43:46,358 INFO L226 Difference]: Without dead ends: 1699 [2023-12-22 02:43:46,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:46,369 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 791 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:46,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 817 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:46,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2023-12-22 02:43:46,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1699. [2023-12-22 02:43:46,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1600 states have (on average 1.434375) internal successors, (2295), 1603 states have internal predecessors, (2295), 61 states have call successors, (61), 37 states have call predecessors, (61), 37 states have return successors, (60), 59 states have call predecessors, (60), 59 states have call successors, (60) [2023-12-22 02:43:46,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2416 transitions. [2023-12-22 02:43:46,436 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2416 transitions. Word has length 162 [2023-12-22 02:43:46,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:46,436 INFO L495 AbstractCegarLoop]: Abstraction has 1699 states and 2416 transitions. [2023-12-22 02:43:46,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:46,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2416 transitions. [2023-12-22 02:43:46,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:46,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:46,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:46,443 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 [2023-12-22 02:43:46,642 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 [2023-12-22 02:43:46,643 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:46,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:46,643 INFO L85 PathProgramCache]: Analyzing trace with hash -290582649, now seen corresponding path program 1 times [2023-12-22 02:43:46,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:46,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351500514] [2023-12-22 02:43:46,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:46,644 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 [2023-12-22 02:43:46,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:46,645 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) [2023-12-22 02:43:46,679 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 [2023-12-22 02:43:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:46,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:46,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:46,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:46,817 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:46,817 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:46,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351500514] [2023-12-22 02:43:46,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351500514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:46,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:46,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:46,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677929108] [2023-12-22 02:43:46,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:46,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:46,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:46,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:46,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:46,819 INFO L87 Difference]: Start difference. First operand 1699 states and 2416 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:47,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:47,200 INFO L93 Difference]: Finished difference Result 3545 states and 5079 transitions. [2023-12-22 02:43:47,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:47,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:47,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:47,204 INFO L225 Difference]: With dead ends: 3545 [2023-12-22 02:43:47,204 INFO L226 Difference]: Without dead ends: 1865 [2023-12-22 02:43:47,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:47,206 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 784 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:47,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 810 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:43:47,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2023-12-22 02:43:47,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 1865. [2023-12-22 02:43:47,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1865 states, 1760 states have (on average 1.4204545454545454) internal successors, (2500), 1763 states have internal predecessors, (2500), 63 states have call successors, (63), 41 states have call predecessors, (63), 41 states have return successors, (62), 61 states have call predecessors, (62), 61 states have call successors, (62) [2023-12-22 02:43:47,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1865 states to 1865 states and 2625 transitions. [2023-12-22 02:43:47,277 INFO L78 Accepts]: Start accepts. Automaton has 1865 states and 2625 transitions. Word has length 162 [2023-12-22 02:43:47,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:47,277 INFO L495 AbstractCegarLoop]: Abstraction has 1865 states and 2625 transitions. [2023-12-22 02:43:47,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:47,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1865 states and 2625 transitions. [2023-12-22 02:43:47,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:47,278 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:47,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:47,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2023-12-22 02:43:47,481 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 [2023-12-22 02:43:47,481 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:47,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:47,481 INFO L85 PathProgramCache]: Analyzing trace with hash 63450951, now seen corresponding path program 1 times [2023-12-22 02:43:47,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:47,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486451282] [2023-12-22 02:43:47,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:47,482 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 [2023-12-22 02:43:47,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:47,490 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) [2023-12-22 02:43:47,491 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 [2023-12-22 02:43:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:47,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:47,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:47,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:47,711 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:47,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:47,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486451282] [2023-12-22 02:43:47,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486451282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:47,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:47,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:47,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215584574] [2023-12-22 02:43:47,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:47,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:47,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:47,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:47,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:47,714 INFO L87 Difference]: Start difference. First operand 1865 states and 2625 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:48,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:48,277 INFO L93 Difference]: Finished difference Result 3877 states and 5497 transitions. [2023-12-22 02:43:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:48,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:48,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:48,281 INFO L225 Difference]: With dead ends: 3877 [2023-12-22 02:43:48,281 INFO L226 Difference]: Without dead ends: 2031 [2023-12-22 02:43:48,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:48,286 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 777 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:48,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 803 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:43:48,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2023-12-22 02:43:48,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 2031. [2023-12-22 02:43:48,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 1920 states have (on average 1.4067708333333333) internal successors, (2701), 1923 states have internal predecessors, (2701), 65 states have call successors, (65), 45 states have call predecessors, (65), 45 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) [2023-12-22 02:43:48,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2830 transitions. [2023-12-22 02:43:48,366 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2830 transitions. Word has length 162 [2023-12-22 02:43:48,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:48,366 INFO L495 AbstractCegarLoop]: Abstraction has 2031 states and 2830 transitions. [2023-12-22 02:43:48,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:48,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2830 transitions. [2023-12-22 02:43:48,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:48,367 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:48,367 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:48,384 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 [2023-12-22 02:43:48,573 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 [2023-12-22 02:43:48,573 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:48,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:48,574 INFO L85 PathProgramCache]: Analyzing trace with hash -494976504, now seen corresponding path program 1 times [2023-12-22 02:43:48,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:48,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284621270] [2023-12-22 02:43:48,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:48,574 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 [2023-12-22 02:43:48,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:48,576 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) [2023-12-22 02:43:48,600 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 [2023-12-22 02:43:48,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:48,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:48,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:48,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:48,794 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:48,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:48,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284621270] [2023-12-22 02:43:48,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284621270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:48,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:48,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:48,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446718580] [2023-12-22 02:43:48,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:48,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:48,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:48,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:48,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:48,795 INFO L87 Difference]: Start difference. First operand 2031 states and 2830 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:49,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:49,353 INFO L93 Difference]: Finished difference Result 4209 states and 5907 transitions. [2023-12-22 02:43:49,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:49,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:49,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:49,357 INFO L225 Difference]: With dead ends: 4209 [2023-12-22 02:43:49,357 INFO L226 Difference]: Without dead ends: 2197 [2023-12-22 02:43:49,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:49,360 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 770 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:49,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 796 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:43:49,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2023-12-22 02:43:49,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 2197. [2023-12-22 02:43:49,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 2080 states have (on average 1.3932692307692307) internal successors, (2898), 2083 states have internal predecessors, (2898), 67 states have call successors, (67), 49 states have call predecessors, (67), 49 states have return successors, (66), 65 states have call predecessors, (66), 65 states have call successors, (66) [2023-12-22 02:43:49,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3031 transitions. [2023-12-22 02:43:49,440 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3031 transitions. Word has length 162 [2023-12-22 02:43:49,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:49,440 INFO L495 AbstractCegarLoop]: Abstraction has 2197 states and 3031 transitions. [2023-12-22 02:43:49,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:49,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3031 transitions. [2023-12-22 02:43:49,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:49,441 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:49,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:49,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2023-12-22 02:43:49,645 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 [2023-12-22 02:43:49,646 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:49,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:49,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1558294072, now seen corresponding path program 1 times [2023-12-22 02:43:49,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:49,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232117271] [2023-12-22 02:43:49,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:49,648 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 [2023-12-22 02:43:49,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:49,649 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) [2023-12-22 02:43:49,650 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 [2023-12-22 02:43:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:49,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:49,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:49,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:49,871 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:49,871 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:49,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232117271] [2023-12-22 02:43:49,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232117271] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:49,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:49,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:49,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861786052] [2023-12-22 02:43:49,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:49,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:49,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:49,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:49,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:49,873 INFO L87 Difference]: Start difference. First operand 2197 states and 3031 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:50,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:50,428 INFO L93 Difference]: Finished difference Result 4541 states and 6309 transitions. [2023-12-22 02:43:50,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:50,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:50,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:50,432 INFO L225 Difference]: With dead ends: 4541 [2023-12-22 02:43:50,432 INFO L226 Difference]: Without dead ends: 2363 [2023-12-22 02:43:50,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:50,440 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 763 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:50,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 789 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:43:50,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states. [2023-12-22 02:43:50,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 2363. [2023-12-22 02:43:50,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2240 states have (on average 1.3799107142857143) internal successors, (3091), 2243 states have internal predecessors, (3091), 69 states have call successors, (69), 53 states have call predecessors, (69), 53 states have return successors, (68), 67 states have call predecessors, (68), 67 states have call successors, (68) [2023-12-22 02:43:50,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3228 transitions. [2023-12-22 02:43:50,528 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3228 transitions. Word has length 162 [2023-12-22 02:43:50,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:50,528 INFO L495 AbstractCegarLoop]: Abstraction has 2363 states and 3228 transitions. [2023-12-22 02:43:50,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:50,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3228 transitions. [2023-12-22 02:43:50,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:50,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:50,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:50,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2023-12-22 02:43:50,733 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 [2023-12-22 02:43:50,733 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:50,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:50,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1949535799, now seen corresponding path program 1 times [2023-12-22 02:43:50,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:50,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168101969] [2023-12-22 02:43:50,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:50,734 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 [2023-12-22 02:43:50,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:50,736 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) [2023-12-22 02:43:50,739 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 [2023-12-22 02:43:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:50,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:50,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:50,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:50,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:50,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:50,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168101969] [2023-12-22 02:43:50,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168101969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:50,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:50,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:50,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596916095] [2023-12-22 02:43:50,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:50,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:50,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:50,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:50,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:50,923 INFO L87 Difference]: Start difference. First operand 2363 states and 3228 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:51,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:51,495 INFO L93 Difference]: Finished difference Result 4873 states and 6703 transitions. [2023-12-22 02:43:51,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:51,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:51,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:51,500 INFO L225 Difference]: With dead ends: 4873 [2023-12-22 02:43:51,500 INFO L226 Difference]: Without dead ends: 2529 [2023-12-22 02:43:51,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:51,503 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 756 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:51,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 782 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:43:51,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2529 states. [2023-12-22 02:43:51,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2529 to 2529. [2023-12-22 02:43:51,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2400 states have (on average 1.3666666666666667) internal successors, (3280), 2403 states have internal predecessors, (3280), 71 states have call successors, (71), 57 states have call predecessors, (71), 57 states have return successors, (70), 69 states have call predecessors, (70), 69 states have call successors, (70) [2023-12-22 02:43:51,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 3421 transitions. [2023-12-22 02:43:51,601 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 3421 transitions. Word has length 162 [2023-12-22 02:43:51,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:51,601 INFO L495 AbstractCegarLoop]: Abstraction has 2529 states and 3421 transitions. [2023-12-22 02:43:51,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:51,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 3421 transitions. [2023-12-22 02:43:51,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:51,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:51,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:51,607 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 [2023-12-22 02:43:51,804 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 [2023-12-22 02:43:51,804 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:51,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:51,805 INFO L85 PathProgramCache]: Analyzing trace with hash -186469080, now seen corresponding path program 1 times [2023-12-22 02:43:51,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:51,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200694355] [2023-12-22 02:43:51,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:51,805 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 [2023-12-22 02:43:51,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:51,806 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) [2023-12-22 02:43:51,808 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 [2023-12-22 02:43:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:51,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:51,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:51,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:51,930 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:51,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:51,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200694355] [2023-12-22 02:43:51,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1200694355] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:51,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:51,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:51,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005058490] [2023-12-22 02:43:51,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:51,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:43:51,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:51,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:43:51,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:51,931 INFO L87 Difference]: Start difference. First operand 2529 states and 3421 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:52,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:52,097 INFO L93 Difference]: Finished difference Result 5190 states and 7068 transitions. [2023-12-22 02:43:52,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:52,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:52,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:52,102 INFO L225 Difference]: With dead ends: 5190 [2023-12-22 02:43:52,102 INFO L226 Difference]: Without dead ends: 2681 [2023-12-22 02:43:52,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:52,105 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 110 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1374 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:52,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1374 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:52,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2023-12-22 02:43:52,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2533. [2023-12-22 02:43:52,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2533 states, 2404 states have (on average 1.3569051580698834) internal successors, (3262), 2407 states have internal predecessors, (3262), 71 states have call successors, (71), 57 states have call predecessors, (71), 57 states have return successors, (70), 69 states have call predecessors, (70), 69 states have call successors, (70) [2023-12-22 02:43:52,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2533 states to 2533 states and 3403 transitions. [2023-12-22 02:43:52,200 INFO L78 Accepts]: Start accepts. Automaton has 2533 states and 3403 transitions. Word has length 162 [2023-12-22 02:43:52,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:52,200 INFO L495 AbstractCegarLoop]: Abstraction has 2533 states and 3403 transitions. [2023-12-22 02:43:52,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:52,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2533 states and 3403 transitions. [2023-12-22 02:43:52,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:52,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:52,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:52,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2023-12-22 02:43:52,405 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 [2023-12-22 02:43:52,405 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:52,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:52,406 INFO L85 PathProgramCache]: Analyzing trace with hash 2135332838, now seen corresponding path program 1 times [2023-12-22 02:43:52,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:52,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680462995] [2023-12-22 02:43:52,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:52,406 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 [2023-12-22 02:43:52,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:52,408 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) [2023-12-22 02:43:52,409 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 [2023-12-22 02:43:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:52,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:52,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:52,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:52,550 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:52,550 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:52,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680462995] [2023-12-22 02:43:52,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680462995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:52,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:52,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:52,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069807137] [2023-12-22 02:43:52,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:52,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:43:52,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:52,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:43:52,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:52,551 INFO L87 Difference]: Start difference. First operand 2533 states and 3403 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:52,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:52,722 INFO L93 Difference]: Finished difference Result 5186 states and 7016 transitions. [2023-12-22 02:43:52,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:52,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:52,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:52,727 INFO L225 Difference]: With dead ends: 5186 [2023-12-22 02:43:52,727 INFO L226 Difference]: Without dead ends: 2673 [2023-12-22 02:43:52,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:52,730 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 101 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:52,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1378 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:52,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2673 states. [2023-12-22 02:43:52,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2673 to 2537. [2023-12-22 02:43:52,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2537 states, 2408 states have (on average 1.3471760797342194) internal successors, (3244), 2411 states have internal predecessors, (3244), 71 states have call successors, (71), 57 states have call predecessors, (71), 57 states have return successors, (70), 69 states have call predecessors, (70), 69 states have call successors, (70) [2023-12-22 02:43:52,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2537 states to 2537 states and 3385 transitions. [2023-12-22 02:43:52,867 INFO L78 Accepts]: Start accepts. Automaton has 2537 states and 3385 transitions. Word has length 162 [2023-12-22 02:43:52,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:52,868 INFO L495 AbstractCegarLoop]: Abstraction has 2537 states and 3385 transitions. [2023-12-22 02:43:52,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:52,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states and 3385 transitions. [2023-12-22 02:43:52,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:52,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:52,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:52,873 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 [2023-12-22 02:43:53,069 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 [2023-12-22 02:43:53,070 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:53,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:53,070 INFO L85 PathProgramCache]: Analyzing trace with hash 101938792, now seen corresponding path program 1 times [2023-12-22 02:43:53,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:53,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121434435] [2023-12-22 02:43:53,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:53,071 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 [2023-12-22 02:43:53,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:53,072 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) [2023-12-22 02:43:53,073 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 [2023-12-22 02:43:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:53,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:53,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:53,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:53,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:53,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:53,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121434435] [2023-12-22 02:43:53,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1121434435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:53,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:53,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:53,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455657610] [2023-12-22 02:43:53,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:53,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:43:53,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:53,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:43:53,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:53,233 INFO L87 Difference]: Start difference. First operand 2537 states and 3385 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:53,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:53,482 INFO L93 Difference]: Finished difference Result 5182 states and 6964 transitions. [2023-12-22 02:43:53,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:53,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:53,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:53,486 INFO L225 Difference]: With dead ends: 5182 [2023-12-22 02:43:53,486 INFO L226 Difference]: Without dead ends: 2665 [2023-12-22 02:43:53,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:53,488 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 92 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:53,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1376 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:53,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2023-12-22 02:43:53,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 2541. [2023-12-22 02:43:53,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2541 states, 2412 states have (on average 1.3374792703150913) internal successors, (3226), 2415 states have internal predecessors, (3226), 71 states have call successors, (71), 57 states have call predecessors, (71), 57 states have return successors, (70), 69 states have call predecessors, (70), 69 states have call successors, (70) [2023-12-22 02:43:53,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 3367 transitions. [2023-12-22 02:43:53,581 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 3367 transitions. Word has length 162 [2023-12-22 02:43:53,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:53,581 INFO L495 AbstractCegarLoop]: Abstraction has 2541 states and 3367 transitions. [2023-12-22 02:43:53,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:53,582 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 3367 transitions. [2023-12-22 02:43:53,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:53,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:53,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:53,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Ended with exit code 0 [2023-12-22 02:43:53,786 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 [2023-12-22 02:43:53,787 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:53,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:53,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1804464474, now seen corresponding path program 1 times [2023-12-22 02:43:53,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:53,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033357806] [2023-12-22 02:43:53,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:53,788 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 [2023-12-22 02:43:53,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:53,789 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:43:53,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-12-22 02:43:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:53,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:53,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:53,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:53,929 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:53,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:53,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033357806] [2023-12-22 02:43:53,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2033357806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:53,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:53,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:53,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258305847] [2023-12-22 02:43:53,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:53,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:43:53,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:53,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:43:53,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:53,930 INFO L87 Difference]: Start difference. First operand 2541 states and 3367 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:54,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:54,126 INFO L93 Difference]: Finished difference Result 5178 states and 6912 transitions. [2023-12-22 02:43:54,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:54,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:54,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:54,130 INFO L225 Difference]: With dead ends: 5178 [2023-12-22 02:43:54,131 INFO L226 Difference]: Without dead ends: 2657 [2023-12-22 02:43:54,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:54,136 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 83 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:54,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1377 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:54,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2657 states. [2023-12-22 02:43:54,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2657 to 2545. [2023-12-22 02:43:54,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2545 states, 2416 states have (on average 1.3278145695364238) internal successors, (3208), 2419 states have internal predecessors, (3208), 71 states have call successors, (71), 57 states have call predecessors, (71), 57 states have return successors, (70), 69 states have call predecessors, (70), 69 states have call successors, (70) [2023-12-22 02:43:54,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2545 states to 2545 states and 3349 transitions. [2023-12-22 02:43:54,240 INFO L78 Accepts]: Start accepts. Automaton has 2545 states and 3349 transitions. Word has length 162 [2023-12-22 02:43:54,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:54,240 INFO L495 AbstractCegarLoop]: Abstraction has 2545 states and 3349 transitions. [2023-12-22 02:43:54,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:54,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2545 states and 3349 transitions. [2023-12-22 02:43:54,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:54,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:54,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:54,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2023-12-22 02:43:54,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:54,446 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:54,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:54,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1606993832, now seen corresponding path program 1 times [2023-12-22 02:43:54,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:54,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165740563] [2023-12-22 02:43:54,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:54,447 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 [2023-12-22 02:43:54,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:54,485 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:43:54,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2023-12-22 02:43:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:54,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:54,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:54,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:54,679 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:54,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:54,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165740563] [2023-12-22 02:43:54,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165740563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:54,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:54,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:43:54,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804605187] [2023-12-22 02:43:54,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:54,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:54,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:54,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:54,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:54,681 INFO L87 Difference]: Start difference. First operand 2545 states and 3349 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:54,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:54,927 INFO L93 Difference]: Finished difference Result 7398 states and 9757 transitions. [2023-12-22 02:43:54,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:54,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:54,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:54,936 INFO L225 Difference]: With dead ends: 7398 [2023-12-22 02:43:54,936 INFO L226 Difference]: Without dead ends: 4873 [2023-12-22 02:43:54,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:54,941 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 425 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:54,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 947 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:54,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4873 states. [2023-12-22 02:43:55,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4873 to 4867. [2023-12-22 02:43:55,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4867 states, 4624 states have (on average 1.3189878892733564) internal successors, (6099), 4628 states have internal predecessors, (6099), 132 states have call successors, (132), 109 states have call predecessors, (132), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-22 02:43:55,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4867 states to 4867 states and 6363 transitions. [2023-12-22 02:43:55,130 INFO L78 Accepts]: Start accepts. Automaton has 4867 states and 6363 transitions. Word has length 162 [2023-12-22 02:43:55,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:55,130 INFO L495 AbstractCegarLoop]: Abstraction has 4867 states and 6363 transitions. [2023-12-22 02:43:55,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:55,131 INFO L276 IsEmpty]: Start isEmpty. Operand 4867 states and 6363 transitions. [2023-12-22 02:43:55,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:55,131 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:55,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:55,137 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 (49)] Ended with exit code 0 [2023-12-22 02:43:55,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:55,337 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:55,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:55,337 INFO L85 PathProgramCache]: Analyzing trace with hash 446146473, now seen corresponding path program 1 times [2023-12-22 02:43:55,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:55,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812275864] [2023-12-22 02:43:55,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:55,338 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 [2023-12-22 02:43:55,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:55,339 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:43:55,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2023-12-22 02:43:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:55,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:55,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:55,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:55,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:55,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:55,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812275864] [2023-12-22 02:43:55,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812275864] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:55,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:55,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:55,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086471865] [2023-12-22 02:43:55,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:55,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:43:55,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:55,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:43:55,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:55,482 INFO L87 Difference]: Start difference. First operand 4867 states and 6363 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:55,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:55,738 INFO L93 Difference]: Finished difference Result 10962 states and 14492 transitions. [2023-12-22 02:43:55,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:55,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:55,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:55,747 INFO L225 Difference]: With dead ends: 10962 [2023-12-22 02:43:55,747 INFO L226 Difference]: Without dead ends: 6115 [2023-12-22 02:43:55,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:55,752 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 74 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1392 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:55,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1392 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:55,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6115 states. [2023-12-22 02:43:55,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6115 to 4915. [2023-12-22 02:43:55,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4915 states, 4672 states have (on average 1.3110017123287672) internal successors, (6125), 4676 states have internal predecessors, (6125), 132 states have call successors, (132), 109 states have call predecessors, (132), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-22 02:43:55,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4915 states to 4915 states and 6389 transitions. [2023-12-22 02:43:55,938 INFO L78 Accepts]: Start accepts. Automaton has 4915 states and 6389 transitions. Word has length 162 [2023-12-22 02:43:55,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:55,938 INFO L495 AbstractCegarLoop]: Abstraction has 4915 states and 6389 transitions. [2023-12-22 02:43:55,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:55,938 INFO L276 IsEmpty]: Start isEmpty. Operand 4915 states and 6389 transitions. [2023-12-22 02:43:55,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:55,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:55,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:55,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:56,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:56,146 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:56,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:56,146 INFO L85 PathProgramCache]: Analyzing trace with hash -548547225, now seen corresponding path program 1 times [2023-12-22 02:43:56,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:56,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904706402] [2023-12-22 02:43:56,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:56,146 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 [2023-12-22 02:43:56,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:56,148 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:43:56,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2023-12-22 02:43:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:56,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:56,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:56,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:56,292 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:56,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:56,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904706402] [2023-12-22 02:43:56,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904706402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:56,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:56,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:56,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176327699] [2023-12-22 02:43:56,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:56,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:43:56,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:56,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:43:56,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:56,294 INFO L87 Difference]: Start difference. First operand 4915 states and 6389 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:56,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:56,548 INFO L93 Difference]: Finished difference Result 9970 states and 13063 transitions. [2023-12-22 02:43:56,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:56,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:56,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:56,555 INFO L225 Difference]: With dead ends: 9970 [2023-12-22 02:43:56,555 INFO L226 Difference]: Without dead ends: 5075 [2023-12-22 02:43:56,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:56,560 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 56 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:56,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1379 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:56,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5075 states. [2023-12-22 02:43:56,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5075 to 4923. [2023-12-22 02:43:56,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4923 states, 4680 states have (on average 1.3014957264957265) internal successors, (6091), 4684 states have internal predecessors, (6091), 132 states have call successors, (132), 109 states have call predecessors, (132), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-22 02:43:56,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4923 states to 4923 states and 6355 transitions. [2023-12-22 02:43:56,746 INFO L78 Accepts]: Start accepts. Automaton has 4923 states and 6355 transitions. Word has length 162 [2023-12-22 02:43:56,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:56,747 INFO L495 AbstractCegarLoop]: Abstraction has 4923 states and 6355 transitions. [2023-12-22 02:43:56,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:56,747 INFO L276 IsEmpty]: Start isEmpty. Operand 4923 states and 6355 transitions. [2023-12-22 02:43:56,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:56,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:56,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:56,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:56,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:56,953 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:56,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:56,953 INFO L85 PathProgramCache]: Analyzing trace with hash 290486437, now seen corresponding path program 1 times [2023-12-22 02:43:56,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:56,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332630384] [2023-12-22 02:43:56,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:56,954 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 [2023-12-22 02:43:56,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:56,955 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:43:56,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2023-12-22 02:43:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:57,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:57,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:57,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:57,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:57,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:57,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332630384] [2023-12-22 02:43:57,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332630384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:57,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:57,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:57,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125296942] [2023-12-22 02:43:57,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:57,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:43:57,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:57,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:43:57,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:57,125 INFO L87 Difference]: Start difference. First operand 4923 states and 6355 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:57,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:57,449 INFO L93 Difference]: Finished difference Result 9962 states and 12963 transitions. [2023-12-22 02:43:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:57,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:57,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:57,456 INFO L225 Difference]: With dead ends: 9962 [2023-12-22 02:43:57,456 INFO L226 Difference]: Without dead ends: 5059 [2023-12-22 02:43:57,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:57,459 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 47 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:57,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1380 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:57,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5059 states. [2023-12-22 02:43:57,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5059 to 4931. [2023-12-22 02:43:57,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4931 states, 4688 states have (on average 1.2920221843003412) internal successors, (6057), 4692 states have internal predecessors, (6057), 132 states have call successors, (132), 109 states have call predecessors, (132), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-22 02:43:57,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4931 states to 4931 states and 6321 transitions. [2023-12-22 02:43:57,635 INFO L78 Accepts]: Start accepts. Automaton has 4931 states and 6321 transitions. Word has length 162 [2023-12-22 02:43:57,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:57,635 INFO L495 AbstractCegarLoop]: Abstraction has 4931 states and 6321 transitions. [2023-12-22 02:43:57,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:57,636 INFO L276 IsEmpty]: Start isEmpty. Operand 4931 states and 6321 transitions. [2023-12-22 02:43:57,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:57,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:57,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:57,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:57,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:57,841 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:57,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:57,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1620556121, now seen corresponding path program 1 times [2023-12-22 02:43:57,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:57,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321306760] [2023-12-22 02:43:57,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:57,842 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 [2023-12-22 02:43:57,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:57,843 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:43:57,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2023-12-22 02:43:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:57,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:57,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:58,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:58,002 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:58,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:58,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321306760] [2023-12-22 02:43:58,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [321306760] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:58,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:58,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:58,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105790659] [2023-12-22 02:43:58,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:58,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:43:58,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:58,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:43:58,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:58,004 INFO L87 Difference]: Start difference. First operand 4931 states and 6321 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:58,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:58,263 INFO L93 Difference]: Finished difference Result 9954 states and 12863 transitions. [2023-12-22 02:43:58,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:58,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:58,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:58,272 INFO L225 Difference]: With dead ends: 9954 [2023-12-22 02:43:58,272 INFO L226 Difference]: Without dead ends: 5043 [2023-12-22 02:43:58,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:58,277 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 38 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:58,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1381 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:58,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5043 states. [2023-12-22 02:43:58,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5043 to 4939. [2023-12-22 02:43:58,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4939 states, 4696 states have (on average 1.282580919931857) internal successors, (6023), 4700 states have internal predecessors, (6023), 132 states have call successors, (132), 109 states have call predecessors, (132), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-22 02:43:58,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4939 states to 4939 states and 6287 transitions. [2023-12-22 02:43:58,466 INFO L78 Accepts]: Start accepts. Automaton has 4939 states and 6287 transitions. Word has length 162 [2023-12-22 02:43:58,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:58,467 INFO L495 AbstractCegarLoop]: Abstraction has 4939 states and 6287 transitions. [2023-12-22 02:43:58,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:58,467 INFO L276 IsEmpty]: Start isEmpty. Operand 4939 states and 6287 transitions. [2023-12-22 02:43:58,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:58,467 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:58,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:58,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:58,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:58,673 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:58,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:58,673 INFO L85 PathProgramCache]: Analyzing trace with hash -666615963, now seen corresponding path program 1 times [2023-12-22 02:43:58,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:58,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521668850] [2023-12-22 02:43:58,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:58,674 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 [2023-12-22 02:43:58,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:58,675 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:43:58,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2023-12-22 02:43:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:58,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:58,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:58,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:58,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:58,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:58,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521668850] [2023-12-22 02:43:58,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521668850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:58,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:58,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:58,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572487331] [2023-12-22 02:43:58,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:58,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:43:58,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:58,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:43:58,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:58,818 INFO L87 Difference]: Start difference. First operand 4939 states and 6287 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:59,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:59,083 INFO L93 Difference]: Finished difference Result 9946 states and 12763 transitions. [2023-12-22 02:43:59,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:59,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:59,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:59,091 INFO L225 Difference]: With dead ends: 9946 [2023-12-22 02:43:59,091 INFO L226 Difference]: Without dead ends: 5027 [2023-12-22 02:43:59,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:59,096 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 29 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:59,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1382 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:59,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5027 states. [2023-12-22 02:43:59,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5027 to 4947. [2023-12-22 02:43:59,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4947 states, 4704 states have (on average 1.273171768707483) internal successors, (5989), 4708 states have internal predecessors, (5989), 132 states have call successors, (132), 109 states have call predecessors, (132), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-22 02:43:59,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4947 states to 4947 states and 6253 transitions. [2023-12-22 02:43:59,277 INFO L78 Accepts]: Start accepts. Automaton has 4947 states and 6253 transitions. Word has length 162 [2023-12-22 02:43:59,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:59,278 INFO L495 AbstractCegarLoop]: Abstraction has 4947 states and 6253 transitions. [2023-12-22 02:43:59,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:59,278 INFO L276 IsEmpty]: Start isEmpty. Operand 4947 states and 6253 transitions. [2023-12-22 02:43:59,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:43:59,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:59,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:59,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Ended with exit code 0 [2023-12-22 02:43:59,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:59,483 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:59,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:59,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1084012569, now seen corresponding path program 1 times [2023-12-22 02:43:59,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:59,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366371300] [2023-12-22 02:43:59,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:59,485 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 [2023-12-22 02:43:59,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:59,486 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:43:59,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2023-12-22 02:43:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:59,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:59,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:59,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:59,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:59,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:59,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366371300] [2023-12-22 02:43:59,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366371300] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:59,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:59,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:59,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145912198] [2023-12-22 02:43:59,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:59,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:43:59,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:59,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:43:59,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:59,640 INFO L87 Difference]: Start difference. First operand 4947 states and 6253 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:59,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:59,884 INFO L93 Difference]: Finished difference Result 9938 states and 12663 transitions. [2023-12-22 02:43:59,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:59,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:43:59,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:59,892 INFO L225 Difference]: With dead ends: 9938 [2023-12-22 02:43:59,892 INFO L226 Difference]: Without dead ends: 5011 [2023-12-22 02:43:59,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:59,897 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 20 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:59,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1383 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:59,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5011 states. [2023-12-22 02:44:00,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5011 to 4955. [2023-12-22 02:44:00,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4955 states, 4712 states have (on average 1.2637945670628183) internal successors, (5955), 4716 states have internal predecessors, (5955), 132 states have call successors, (132), 109 states have call predecessors, (132), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-22 02:44:00,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4955 states to 4955 states and 6219 transitions. [2023-12-22 02:44:00,085 INFO L78 Accepts]: Start accepts. Automaton has 4955 states and 6219 transitions. Word has length 162 [2023-12-22 02:44:00,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:00,085 INFO L495 AbstractCegarLoop]: Abstraction has 4955 states and 6219 transitions. [2023-12-22 02:44:00,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:00,085 INFO L276 IsEmpty]: Start isEmpty. Operand 4955 states and 6219 transitions. [2023-12-22 02:44:00,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:44:00,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:00,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:00,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:00,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:00,291 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:00,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:00,292 INFO L85 PathProgramCache]: Analyzing trace with hash -650283483, now seen corresponding path program 1 times [2023-12-22 02:44:00,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:00,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336203597] [2023-12-22 02:44:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:00,292 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 [2023-12-22 02:44:00,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:00,294 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:44:00,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2023-12-22 02:44:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:00,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:00,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:00,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:44:00,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:00,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:00,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336203597] [2023-12-22 02:44:00,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336203597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:00,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:00,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:00,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512641274] [2023-12-22 02:44:00,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:00,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:00,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:00,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:00,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:00,438 INFO L87 Difference]: Start difference. First operand 4955 states and 6219 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:00,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:00,684 INFO L93 Difference]: Finished difference Result 9930 states and 12563 transitions. [2023-12-22 02:44:00,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:00,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:44:00,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:00,695 INFO L225 Difference]: With dead ends: 9930 [2023-12-22 02:44:00,695 INFO L226 Difference]: Without dead ends: 4995 [2023-12-22 02:44:00,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:00,703 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 11 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:00,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1384 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:00,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4995 states. [2023-12-22 02:44:00,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4995 to 4963. [2023-12-22 02:44:00,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4963 states, 4720 states have (on average 1.2544491525423729) internal successors, (5921), 4724 states have internal predecessors, (5921), 132 states have call successors, (132), 109 states have call predecessors, (132), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-22 02:44:00,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4963 states to 4963 states and 6185 transitions. [2023-12-22 02:44:00,942 INFO L78 Accepts]: Start accepts. Automaton has 4963 states and 6185 transitions. Word has length 162 [2023-12-22 02:44:00,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:00,942 INFO L495 AbstractCegarLoop]: Abstraction has 4963 states and 6185 transitions. [2023-12-22 02:44:00,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:00,943 INFO L276 IsEmpty]: Start isEmpty. Operand 4963 states and 6185 transitions. [2023-12-22 02:44:00,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:44:00,943 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:00,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:00,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:01,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:01,149 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:01,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:01,150 INFO L85 PathProgramCache]: Analyzing trace with hash -206382809, now seen corresponding path program 1 times [2023-12-22 02:44:01,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:01,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [740530563] [2023-12-22 02:44:01,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:01,150 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 [2023-12-22 02:44:01,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:01,151 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:44:01,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2023-12-22 02:44:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:01,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:44:01,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:01,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:44:01,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:01,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:01,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [740530563] [2023-12-22 02:44:01,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [740530563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:01,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:01,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:01,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437266229] [2023-12-22 02:44:01,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:01,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:01,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:01,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:01,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:01,427 INFO L87 Difference]: Start difference. First operand 4963 states and 6185 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:01,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:01,942 INFO L93 Difference]: Finished difference Result 9907 states and 12350 transitions. [2023-12-22 02:44:01,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:01,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:44:01,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:01,950 INFO L225 Difference]: With dead ends: 9907 [2023-12-22 02:44:01,950 INFO L226 Difference]: Without dead ends: 4963 [2023-12-22 02:44:01,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:44:01,955 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 575 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:01,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 774 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:44:01,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4963 states. [2023-12-22 02:44:02,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4963 to 4963. [2023-12-22 02:44:02,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4963 states, 4720 states have (on average 1.2514830508474577) internal successors, (5907), 4724 states have internal predecessors, (5907), 132 states have call successors, (132), 109 states have call predecessors, (132), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-22 02:44:02,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4963 states to 4963 states and 6171 transitions. [2023-12-22 02:44:02,144 INFO L78 Accepts]: Start accepts. Automaton has 4963 states and 6171 transitions. Word has length 162 [2023-12-22 02:44:02,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:02,144 INFO L495 AbstractCegarLoop]: Abstraction has 4963 states and 6171 transitions. [2023-12-22 02:44:02,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:02,144 INFO L276 IsEmpty]: Start isEmpty. Operand 4963 states and 6171 transitions. [2023-12-22 02:44:02,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:44:02,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:02,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:02,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:02,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:02,350 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:02,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:02,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1103776087, now seen corresponding path program 1 times [2023-12-22 02:44:02,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:02,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330065478] [2023-12-22 02:44:02,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:02,351 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 [2023-12-22 02:44:02,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:02,352 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:44:02,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2023-12-22 02:44:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:02,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:44:02,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:02,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:44:02,628 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:02,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:02,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330065478] [2023-12-22 02:44:02,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330065478] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:02,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:02,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:02,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676980442] [2023-12-22 02:44:02,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:02,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:02,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:02,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:02,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:02,629 INFO L87 Difference]: Start difference. First operand 4963 states and 6171 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:03,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:03,147 INFO L93 Difference]: Finished difference Result 9907 states and 12322 transitions. [2023-12-22 02:44:03,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:03,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:44:03,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:03,154 INFO L225 Difference]: With dead ends: 9907 [2023-12-22 02:44:03,155 INFO L226 Difference]: Without dead ends: 4963 [2023-12-22 02:44:03,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:44:03,160 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 562 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:03,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 767 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:44:03,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4963 states. [2023-12-22 02:44:03,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4963 to 4963. [2023-12-22 02:44:03,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4963 states, 4720 states have (on average 1.2485169491525423) internal successors, (5893), 4724 states have internal predecessors, (5893), 132 states have call successors, (132), 109 states have call predecessors, (132), 110 states have return successors, (132), 130 states have call predecessors, (132), 130 states have call successors, (132) [2023-12-22 02:44:03,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4963 states to 4963 states and 6157 transitions. [2023-12-22 02:44:03,358 INFO L78 Accepts]: Start accepts. Automaton has 4963 states and 6157 transitions. Word has length 162 [2023-12-22 02:44:03,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:03,358 INFO L495 AbstractCegarLoop]: Abstraction has 4963 states and 6157 transitions. [2023-12-22 02:44:03,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:03,358 INFO L276 IsEmpty]: Start isEmpty. Operand 4963 states and 6157 transitions. [2023-12-22 02:44:03,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:44:03,359 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:03,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:03,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:03,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:03,565 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:03,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:03,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1947781589, now seen corresponding path program 1 times [2023-12-22 02:44:03,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:03,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440824282] [2023-12-22 02:44:03,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:03,566 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 [2023-12-22 02:44:03,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:03,567 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:44:03,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2023-12-22 02:44:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:03,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:44:03,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:03,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:44:03,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:03,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:03,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440824282] [2023-12-22 02:44:03,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440824282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:03,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:03,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:03,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275192733] [2023-12-22 02:44:03,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:03,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:03,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:03,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:03,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:03,837 INFO L87 Difference]: Start difference. First operand 4963 states and 6157 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:04,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:04,522 INFO L93 Difference]: Finished difference Result 10297 states and 12795 transitions. [2023-12-22 02:44:04,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:44:04,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:44:04,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:04,530 INFO L225 Difference]: With dead ends: 10297 [2023-12-22 02:44:04,530 INFO L226 Difference]: Without dead ends: 5353 [2023-12-22 02:44:04,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:44:04,536 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 705 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:04,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 762 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:44:04,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5353 states. [2023-12-22 02:44:04,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5353 to 5249. [2023-12-22 02:44:04,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 4994 states have (on average 1.2356828193832599) internal successors, (6171), 4998 states have internal predecessors, (6171), 136 states have call successors, (136), 117 states have call predecessors, (136), 118 states have return successors, (136), 134 states have call predecessors, (136), 134 states have call successors, (136) [2023-12-22 02:44:04,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 6443 transitions. [2023-12-22 02:44:04,753 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 6443 transitions. Word has length 162 [2023-12-22 02:44:04,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:04,753 INFO L495 AbstractCegarLoop]: Abstraction has 5249 states and 6443 transitions. [2023-12-22 02:44:04,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:04,753 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 6443 transitions. [2023-12-22 02:44:04,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:44:04,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:04,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:04,759 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 (59)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:04,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:04,959 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:04,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:04,960 INFO L85 PathProgramCache]: Analyzing trace with hash -24553555, now seen corresponding path program 1 times [2023-12-22 02:44:04,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:04,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224309278] [2023-12-22 02:44:04,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:04,960 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 [2023-12-22 02:44:04,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:04,961 INFO L229 MonitoredProcess]: Starting monitored process 60 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) [2023-12-22 02:44:04,962 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 (60)] Waiting until timeout for monitored process [2023-12-22 02:44:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:05,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:44:05,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:44:05,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:05,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:05,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224309278] [2023-12-22 02:44:05,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224309278] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:05,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:05,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:05,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896138311] [2023-12-22 02:44:05,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:05,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:05,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:05,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:05,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:05,239 INFO L87 Difference]: Start difference. First operand 5249 states and 6443 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:05,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:05,835 INFO L93 Difference]: Finished difference Result 10821 states and 13369 transitions. [2023-12-22 02:44:05,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:44:05,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 162 [2023-12-22 02:44:05,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:05,846 INFO L225 Difference]: With dead ends: 10821 [2023-12-22 02:44:05,846 INFO L226 Difference]: Without dead ends: 5591 [2023-12-22 02:44:05,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:44:05,854 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 633 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:05,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 755 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:44:05,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5591 states. [2023-12-22 02:44:06,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5591 to 5567. [2023-12-22 02:44:06,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5567 states, 5308 states have (on average 1.2213639788997739) internal successors, (6483), 5312 states have internal predecessors, (6483), 136 states have call successors, (136), 121 states have call predecessors, (136), 122 states have return successors, (136), 134 states have call predecessors, (136), 134 states have call successors, (136) [2023-12-22 02:44:06,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5567 states to 5567 states and 6755 transitions. [2023-12-22 02:44:06,124 INFO L78 Accepts]: Start accepts. Automaton has 5567 states and 6755 transitions. Word has length 162 [2023-12-22 02:44:06,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:06,124 INFO L495 AbstractCegarLoop]: Abstraction has 5567 states and 6755 transitions. [2023-12-22 02:44:06,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:06,125 INFO L276 IsEmpty]: Start isEmpty. Operand 5567 states and 6755 transitions. [2023-12-22 02:44:06,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:44:06,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:06,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:06,132 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 (60)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:06,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:06,330 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:06,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:06,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1713497297, now seen corresponding path program 1 times [2023-12-22 02:44:06,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:06,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [29318944] [2023-12-22 02:44:06,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:06,331 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:06,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:06,333 INFO L229 MonitoredProcess]: Starting monitored process 61 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) [2023-12-22 02:44:06,334 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 (61)] Waiting until timeout for monitored process [2023-12-22 02:44:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:06,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:44:06,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:06,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:44:06,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:06,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:06,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [29318944] [2023-12-22 02:44:06,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [29318944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:06,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:06,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:44:06,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341035624] [2023-12-22 02:44:06,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:06,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:44:06,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:06,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:44:06,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:06,583 INFO L87 Difference]: Start difference. First operand 5567 states and 6755 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-22 02:44:07,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:07,065 INFO L93 Difference]: Finished difference Result 16570 states and 20185 transitions. [2023-12-22 02:44:07,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:44:07,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 162 [2023-12-22 02:44:07,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:07,085 INFO L225 Difference]: With dead ends: 16570 [2023-12-22 02:44:07,085 INFO L226 Difference]: Without dead ends: 11023 [2023-12-22 02:44:07,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:07,097 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 319 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:07,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 861 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:07,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11023 states. [2023-12-22 02:44:07,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11023 to 11019. [2023-12-22 02:44:07,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11019 states, 10508 states have (on average 1.214408070041873) internal successors, (12761), 10518 states have internal predecessors, (12761), 266 states have call successors, (266), 241 states have call predecessors, (266), 244 states have return successors, (268), 260 states have call predecessors, (268), 264 states have call successors, (268) [2023-12-22 02:44:07,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11019 states to 11019 states and 13295 transitions. [2023-12-22 02:44:07,555 INFO L78 Accepts]: Start accepts. Automaton has 11019 states and 13295 transitions. Word has length 162 [2023-12-22 02:44:07,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:07,556 INFO L495 AbstractCegarLoop]: Abstraction has 11019 states and 13295 transitions. [2023-12-22 02:44:07,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-22 02:44:07,556 INFO L276 IsEmpty]: Start isEmpty. Operand 11019 states and 13295 transitions. [2023-12-22 02:44:07,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-22 02:44:07,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:07,560 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:07,565 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 (61)] Ended with exit code 0 [2023-12-22 02:44:07,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:07,766 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:07,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:07,766 INFO L85 PathProgramCache]: Analyzing trace with hash -600087797, now seen corresponding path program 1 times [2023-12-22 02:44:07,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:07,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514564082] [2023-12-22 02:44:07,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:07,767 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 [2023-12-22 02:44:07,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:07,768 INFO L229 MonitoredProcess]: Starting monitored process 62 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) [2023-12-22 02:44:07,769 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 (62)] Waiting until timeout for monitored process [2023-12-22 02:44:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:07,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:44:07,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:08,055 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-22 02:44:08,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:08,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:08,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514564082] [2023-12-22 02:44:08,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514564082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:08,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:08,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:44:08,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977943802] [2023-12-22 02:44:08,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:08,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:44:08,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:08,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:44:08,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:08,057 INFO L87 Difference]: Start difference. First operand 11019 states and 13295 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 2 states have internal predecessors, (237), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:44:09,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:09,028 INFO L93 Difference]: Finished difference Result 32196 states and 39040 transitions. [2023-12-22 02:44:09,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:44:09,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 2 states have internal predecessors, (237), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 260 [2023-12-22 02:44:09,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:09,068 INFO L225 Difference]: With dead ends: 32196 [2023-12-22 02:44:09,069 INFO L226 Difference]: Without dead ends: 21197 [2023-12-22 02:44:09,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:09,086 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 321 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:09,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 915 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:09,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21197 states. [2023-12-22 02:44:09,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21197 to 21185. [2023-12-22 02:44:09,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21185 states, 20202 states have (on average 1.2096327096327095) internal successors, (24437), 20220 states have internal predecessors, (24437), 510 states have call successors, (510), 465 states have call predecessors, (510), 472 states have return successors, (516), 500 states have call predecessors, (516), 508 states have call successors, (516) [2023-12-22 02:44:09,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21185 states to 21185 states and 25463 transitions. [2023-12-22 02:44:09,990 INFO L78 Accepts]: Start accepts. Automaton has 21185 states and 25463 transitions. Word has length 260 [2023-12-22 02:44:09,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:09,991 INFO L495 AbstractCegarLoop]: Abstraction has 21185 states and 25463 transitions. [2023-12-22 02:44:09,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 2 states have internal predecessors, (237), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:44:09,991 INFO L276 IsEmpty]: Start isEmpty. Operand 21185 states and 25463 transitions. [2023-12-22 02:44:09,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-22 02:44:09,999 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:09,999 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:10,008 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 (62)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:10,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:10,207 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:10,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:10,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1900806902, now seen corresponding path program 1 times [2023-12-22 02:44:10,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:10,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102129786] [2023-12-22 02:44:10,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:10,209 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 [2023-12-22 02:44:10,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:10,210 INFO L229 MonitoredProcess]: Starting monitored process 63 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) [2023-12-22 02:44:10,236 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 (63)] Waiting until timeout for monitored process [2023-12-22 02:44:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:10,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:44:10,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:10,599 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-22 02:44:10,600 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:10,600 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:10,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102129786] [2023-12-22 02:44:10,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102129786] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:10,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:10,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:10,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685734798] [2023-12-22 02:44:10,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:10,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:10,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:10,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:10,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:10,601 INFO L87 Difference]: Start difference. First operand 21185 states and 25463 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:44:12,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:12,590 INFO L93 Difference]: Finished difference Result 63156 states and 75833 transitions. [2023-12-22 02:44:12,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:12,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 260 [2023-12-22 02:44:12,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:12,660 INFO L225 Difference]: With dead ends: 63156 [2023-12-22 02:44:12,660 INFO L226 Difference]: Without dead ends: 41992 [2023-12-22 02:44:12,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:12,695 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 651 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:12,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 1326 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:44:12,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41992 states. [2023-12-22 02:44:14,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41992 to 41988. [2023-12-22 02:44:14,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41988 states, 40042 states have (on average 1.2048099495529694) internal successors, (48243), 40085 states have internal predecessors, (48243), 1001 states have call successors, (1001), 913 states have call predecessors, (1001), 944 states have return successors, (1079), 991 states have call predecessors, (1079), 999 states have call successors, (1079) [2023-12-22 02:44:14,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41988 states to 41988 states and 50323 transitions. [2023-12-22 02:44:14,589 INFO L78 Accepts]: Start accepts. Automaton has 41988 states and 50323 transitions. Word has length 260 [2023-12-22 02:44:14,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:14,589 INFO L495 AbstractCegarLoop]: Abstraction has 41988 states and 50323 transitions. [2023-12-22 02:44:14,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:44:14,589 INFO L276 IsEmpty]: Start isEmpty. Operand 41988 states and 50323 transitions. [2023-12-22 02:44:14,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-22 02:44:14,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:14,602 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:14,608 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 (63)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:14,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:14,809 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:14,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:14,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1744564724, now seen corresponding path program 1 times [2023-12-22 02:44:14,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:14,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85826102] [2023-12-22 02:44:14,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:14,811 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 [2023-12-22 02:44:14,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:14,812 INFO L229 MonitoredProcess]: Starting monitored process 64 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) [2023-12-22 02:44:14,816 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 (64)] Waiting until timeout for monitored process [2023-12-22 02:44:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:14,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:44:14,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:14,992 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-22 02:44:14,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:14,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:14,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85826102] [2023-12-22 02:44:14,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85826102] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:14,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:14,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:44:14,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020744453] [2023-12-22 02:44:14,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:15,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:44:15,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:15,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:44:15,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:15,007 INFO L87 Difference]: Start difference. First operand 41988 states and 50323 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:44:16,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:16,648 INFO L93 Difference]: Finished difference Result 73798 states and 88422 transitions. [2023-12-22 02:44:16,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:44:16,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 260 [2023-12-22 02:44:16,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:16,707 INFO L225 Difference]: With dead ends: 73798 [2023-12-22 02:44:16,708 INFO L226 Difference]: Without dead ends: 31831 [2023-12-22 02:44:16,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:16,731 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 488 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:16,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 450 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:44:16,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31831 states. [2023-12-22 02:44:18,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31831 to 31831. [2023-12-22 02:44:18,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31831 states, 30360 states have (on average 1.2047430830039525) internal successors, (36576), 30394 states have internal predecessors, (36576), 754 states have call successors, (754), 689 states have call predecessors, (754), 716 states have return successors, (804), 748 states have call predecessors, (804), 752 states have call successors, (804) [2023-12-22 02:44:18,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31831 states to 31831 states and 38134 transitions. [2023-12-22 02:44:18,407 INFO L78 Accepts]: Start accepts. Automaton has 31831 states and 38134 transitions. Word has length 260 [2023-12-22 02:44:18,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:18,407 INFO L495 AbstractCegarLoop]: Abstraction has 31831 states and 38134 transitions. [2023-12-22 02:44:18,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:44:18,407 INFO L276 IsEmpty]: Start isEmpty. Operand 31831 states and 38134 transitions. [2023-12-22 02:44:18,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-12-22 02:44:18,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:18,417 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:18,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:18,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:18,621 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:18,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:18,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1895277083, now seen corresponding path program 1 times [2023-12-22 02:44:18,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:18,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1768203873] [2023-12-22 02:44:18,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:18,625 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 [2023-12-22 02:44:18,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:18,627 INFO L229 MonitoredProcess]: Starting monitored process 65 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) [2023-12-22 02:44:18,627 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 (65)] Waiting until timeout for monitored process [2023-12-22 02:44:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:18,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:44:18,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:19,056 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-22 02:44:19,057 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:19,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:19,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1768203873] [2023-12-22 02:44:19,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1768203873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:19,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:19,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:19,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485069615] [2023-12-22 02:44:19,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:19,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:19,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:19,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:19,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:19,058 INFO L87 Difference]: Start difference. First operand 31831 states and 38134 transitions. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:44:22,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:22,016 INFO L93 Difference]: Finished difference Result 93717 states and 112222 transitions. [2023-12-22 02:44:22,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:22,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 262 [2023-12-22 02:44:22,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:22,150 INFO L225 Difference]: With dead ends: 93717 [2023-12-22 02:44:22,150 INFO L226 Difference]: Without dead ends: 61907 [2023-12-22 02:44:22,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:22,184 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 642 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:22,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 1304 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:44:22,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61907 states. [2023-12-22 02:44:25,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61907 to 61903. [2023-12-22 02:44:25,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61903 states, 59045 states have (on average 1.2026081802015411) internal successors, (71008), 59120 states have internal predecessors, (71008), 1457 states have call successors, (1457), 1329 states have call predecessors, (1457), 1400 states have return successors, (1599), 1455 states have call predecessors, (1599), 1455 states have call successors, (1599) [2023-12-22 02:44:25,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61903 states to 61903 states and 74064 transitions. [2023-12-22 02:44:25,254 INFO L78 Accepts]: Start accepts. Automaton has 61903 states and 74064 transitions. Word has length 262 [2023-12-22 02:44:25,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:25,254 INFO L495 AbstractCegarLoop]: Abstraction has 61903 states and 74064 transitions. [2023-12-22 02:44:25,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:44:25,255 INFO L276 IsEmpty]: Start isEmpty. Operand 61903 states and 74064 transitions. [2023-12-22 02:44:25,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-12-22 02:44:25,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:25,276 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:25,282 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 (65)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:25,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:25,480 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:25,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:25,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1346736861, now seen corresponding path program 1 times [2023-12-22 02:44:25,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:25,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377453193] [2023-12-22 02:44:25,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:25,481 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 [2023-12-22 02:44:25,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:25,483 INFO L229 MonitoredProcess]: Starting monitored process 66 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) [2023-12-22 02:44:25,485 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 (66)] Waiting until timeout for monitored process [2023-12-22 02:44:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:25,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:44:25,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-22 02:44:25,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:25,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:25,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377453193] [2023-12-22 02:44:25,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [377453193] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:25,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:25,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:44:25,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594691439] [2023-12-22 02:44:25,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:25,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:44:25,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:25,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:44:25,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:25,663 INFO L87 Difference]: Start difference. First operand 61903 states and 74064 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:44:28,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:28,598 INFO L93 Difference]: Finished difference Result 123771 states and 148067 transitions. [2023-12-22 02:44:28,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:44:28,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 262 [2023-12-22 02:44:28,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:28,734 INFO L225 Difference]: With dead ends: 123771 [2023-12-22 02:44:28,734 INFO L226 Difference]: Without dead ends: 61889 [2023-12-22 02:44:28,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:28,795 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 486 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:28,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 449 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:44:28,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61889 states. [2023-12-22 02:44:32,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61889 to 61889. [2023-12-22 02:44:32,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61889 states, 59034 states have (on average 1.2024765389436596) internal successors, (70987), 59108 states have internal predecessors, (70987), 1454 states have call successors, (1454), 1329 states have call predecessors, (1454), 1400 states have return successors, (1596), 1452 states have call predecessors, (1596), 1452 states have call successors, (1596) [2023-12-22 02:44:32,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61889 states to 61889 states and 74037 transitions. [2023-12-22 02:44:32,167 INFO L78 Accepts]: Start accepts. Automaton has 61889 states and 74037 transitions. Word has length 262 [2023-12-22 02:44:32,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:32,167 INFO L495 AbstractCegarLoop]: Abstraction has 61889 states and 74037 transitions. [2023-12-22 02:44:32,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:44:32,167 INFO L276 IsEmpty]: Start isEmpty. Operand 61889 states and 74037 transitions. [2023-12-22 02:44:32,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-12-22 02:44:32,186 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:32,186 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:32,192 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 (66)] Ended with exit code 0 [2023-12-22 02:44:32,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:32,392 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:32,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:32,392 INFO L85 PathProgramCache]: Analyzing trace with hash -943388854, now seen corresponding path program 1 times [2023-12-22 02:44:32,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:32,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830848526] [2023-12-22 02:44:32,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:32,393 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 [2023-12-22 02:44:32,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:32,394 INFO L229 MonitoredProcess]: Starting monitored process 67 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) [2023-12-22 02:44:32,398 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 (67)] Waiting until timeout for monitored process [2023-12-22 02:44:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:32,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:44:32,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:32,811 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-22 02:44:32,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:32,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:32,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830848526] [2023-12-22 02:44:32,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1830848526] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:32,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:32,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:32,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727553170] [2023-12-22 02:44:32,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:32,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:32,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:32,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:32,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:32,812 INFO L87 Difference]: Start difference. First operand 61889 states and 74037 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:44:38,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:38,496 INFO L93 Difference]: Finished difference Result 182642 states and 218451 transitions. [2023-12-22 02:44:38,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:38,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 264 [2023-12-22 02:44:38,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:38,799 INFO L225 Difference]: With dead ends: 182642 [2023-12-22 02:44:38,799 INFO L226 Difference]: Without dead ends: 120774 [2023-12-22 02:44:38,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:38,842 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 639 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:38,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 1266 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:44:38,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120774 states. [2023-12-22 02:44:44,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120774 to 120770. [2023-12-22 02:44:44,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120770 states, 115208 states have (on average 1.2012099854176794) internal successors, (138389), 115379 states have internal predecessors, (138389), 2809 states have call successors, (2809), 2561 states have call predecessors, (2809), 2752 states have return successors, (3167), 2831 states have call predecessors, (3167), 2807 states have call successors, (3167) [2023-12-22 02:44:45,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120770 states to 120770 states and 144365 transitions. [2023-12-22 02:44:45,119 INFO L78 Accepts]: Start accepts. Automaton has 120770 states and 144365 transitions. Word has length 264 [2023-12-22 02:44:45,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:45,119 INFO L495 AbstractCegarLoop]: Abstraction has 120770 states and 144365 transitions. [2023-12-22 02:44:45,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:44:45,119 INFO L276 IsEmpty]: Start isEmpty. Operand 120770 states and 144365 transitions. [2023-12-22 02:44:45,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-12-22 02:44:45,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:45,166 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:45,173 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 (67)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:45,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:45,373 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:45,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:45,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1118511156, now seen corresponding path program 1 times [2023-12-22 02:44:45,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:45,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673799317] [2023-12-22 02:44:45,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:45,374 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 [2023-12-22 02:44:45,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:45,375 INFO L229 MonitoredProcess]: Starting monitored process 68 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) [2023-12-22 02:44:45,377 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 (68)] Waiting until timeout for monitored process [2023-12-22 02:44:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:45,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:44:45,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:45,560 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-22 02:44:45,560 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:45,560 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:45,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673799317] [2023-12-22 02:44:45,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673799317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:45,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:45,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:44:45,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413712560] [2023-12-22 02:44:45,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:45,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:44:45,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:45,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:44:45,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:45,562 INFO L87 Difference]: Start difference. First operand 120770 states and 144365 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:44:51,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:51,319 INFO L93 Difference]: Finished difference Result 241506 states and 288672 transitions. [2023-12-22 02:44:51,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:44:51,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 264 [2023-12-22 02:44:51,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:51,615 INFO L225 Difference]: With dead ends: 241506 [2023-12-22 02:44:51,616 INFO L226 Difference]: Without dead ends: 120757 [2023-12-22 02:44:51,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:51,842 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 484 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:51,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 448 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:44:51,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120757 states. [2023-12-22 02:44:57,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120757 to 120757. [2023-12-22 02:44:57,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120757 states, 115198 states have (on average 1.2011493255091235) internal successors, (138370), 115368 states have internal predecessors, (138370), 2806 states have call successors, (2806), 2561 states have call predecessors, (2806), 2752 states have return successors, (3164), 2828 states have call predecessors, (3164), 2804 states have call successors, (3164) [2023-12-22 02:44:58,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120757 states to 120757 states and 144340 transitions. [2023-12-22 02:44:58,043 INFO L78 Accepts]: Start accepts. Automaton has 120757 states and 144340 transitions. Word has length 264 [2023-12-22 02:44:58,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:58,043 INFO L495 AbstractCegarLoop]: Abstraction has 120757 states and 144340 transitions. [2023-12-22 02:44:58,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:44:58,043 INFO L276 IsEmpty]: Start isEmpty. Operand 120757 states and 144340 transitions. [2023-12-22 02:44:58,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-12-22 02:44:58,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:58,078 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:58,084 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 (68)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:58,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:58,284 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:58,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:58,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2117384475, now seen corresponding path program 1 times [2023-12-22 02:44:58,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:58,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765502020] [2023-12-22 02:44:58,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:58,285 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 [2023-12-22 02:44:58,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:58,286 INFO L229 MonitoredProcess]: Starting monitored process 69 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) [2023-12-22 02:44:58,288 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 (69)] Waiting until timeout for monitored process [2023-12-22 02:44:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:58,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:44:58,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:58,660 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-22 02:44:58,660 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:58,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:58,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765502020] [2023-12-22 02:44:58,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765502020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:58,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:58,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:58,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043048492] [2023-12-22 02:44:58,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:58,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:58,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:58,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:58,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:58,662 INFO L87 Difference]: Start difference. First operand 120757 states and 144340 transitions. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8)